Publications

151. “Moiré superlattice and two-dimensional free-electron-like states of indium triple-layer structure on Si(111)”
S. Hatta, K. Kuroishi, K. Yukawa, T. Murata, H. Okuyama, and T. Aruga,
Phys. Rev. B 108, 045427 (2023).

150. “Epitaxial Growth and Electronic Properties of Single- and Few-Layer FeBr₂ on Bi(111)”
S. Terakawa, S. Hatta, H. Okuyama, and T. Aruga,
J. Phys. Chem. C 127, 14898-14905 (2023).

149. “Interaction of individual Ag atoms with graphene on Rh(111): Adsorption, migration, and cluster formation”
H. Okuyama, D. Yamamoto, S. Hatta, and T. Aruga,
Carbon 210, 118032 (2023).

148. “Structure and electronic states of strongly interacting metal-organic interfaces: CuPc on Cu(100) and Cu(110)”
H. Okuyama, S. Kuwayama, Y. Nakazawa, S. Hatta, and T. Aruga,
Surface Science, 723, 122126 (2022).

147. “CuPc Adsorption on Au(110)-(1 × 2): From a Monomer to a Periodic Chain”
H. Koshida, Y. Takahashi, H. Okuyama, S. Hatta, and T. Aruga,
e-Journal of Surface Science and Nanotechnology, 20, 25-30 (2022).

146. “Ultrathin (In, Mg) films on Si(111): A nearly freestanding double-layer metal”
Shigemi Terakawa, Shinichiro Hatta, Hiroshi Okuyama, and Tetsuya Aruga,
Phys. Rev. B, 105, 125402 (2022).

145. “A flat-lying dimer as a key intermediate in NO reduction on Cu(100)”
Kenta Kuroishi, Muhammad Rifqi Al Fauzan, Thanh Ngoc Pham, Yuelin Wang, Yuji Hamamoto, Kouji Inagaki, Akitoshi Shiotari, Hiroshi Okuyama, Shinichiro Hatta, Tetsuya Aruga, Ikutaro Hamada and Yoshitada Morikawa,
Phys. Chem. Chem. Phys., 23, 16880 (2021).

144. “Effect of local geometry on magnetic property of nitric oxide on Au(110)-(1 × 2)”
H. Koshida, H. Okuyama, S. Hatta, T. Aruga, and E. Minamitani
Phys. Rev. B, 103, 155412 (2021).

143. “Metallic conduction through van der Waals interfaces in ultrathin Bi₂Te₃ films”
S. Hatta, K. Obayashi, H. Okuyama, and T. Aruga,
Scientific Reports, 11, 5742 (2021).

142. “Identifying Atomic-Level Correlation Between Geometric and Electronic Structure at a Metal-Organic Interface”
H. Koshida, H. Okuyama, S. Hatta, T. Aruga, Y. Hamamoto, I. Hamada, and Y. Morikawa,
J. Phys. Chem. C, 124 (32), 17696–17701 (2020).

141. “Structure and phase transition of a uniaxially incommensurate In monolayer on Si(111)”
S. Terakawa, S. Hatta, H. Okuyama, and T. Aruga,
Phys. Rev. B 100, 115428 (2019)

140. “Identification of single-layer metallic structure of indium on Si(111)”
S. Terakawa, S. Hatta, H. Okuyama, and T. Aruga,
J. Phys.: Condens. Matter 30, 365002 (2018)

139. “Effect of adsorbates on single-molecule junction conductance” 
H. Okuyama, H. So, S. Hatta, T. Frederiksen and T. Aruga,
Surf. Sci. 678, 169 (2018)

138. “Water−NO Complex Formation and Chain Growth on Cu(111)” 
H. Koshida,  S. Hatta,  H. Okuyama, A. Shiotari, Y. Sugimoto and T. Aruga,
J. Phys. Chem. C 122, 16, 8894-8900 (2018)

137. “Atomic-scale study of the formation of sodium–water complexes on Cu(110)” 
A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, and I. Hamada,
Phys. Chem. Chem. Phys. (2018)

136. “Electrical conduction and metal-insulator transition of indium nanowires on Si(111)” 
S. Hatta, T. Noma, H. Okuyama, T. Aruga, Phys. Rev. B, 95, 195409 (2017)

135. “Role of valence states of adsorbates in inelastic electron tunneling spectroscopy: A study of nitric oxide on Cu(110) and Cu(001)”
A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, M. Alducin, and T. Frederiksen, Phys. Rev. B, 94, 075442 (2016)

134.”Vibrational spectroscopic evidence for (NO)₃ formation on Cu(111)”
H. Koshida, H. Okuyama, S. Hatta, and T. Aruga, J. Chem. Phys. 145, 054705 (2016)

133. “Adsorbed states of chlorophenol on Cu(110) and controlled switching of single-molecule junctions”
H. Okuyama, Y. Kitaguchi, T. Hattori, Y. Ueda, N. G. Ferrer, S. Hatta, and T. Aruga, J. Chem. Phys. 144, 244703 (2016)

132. “Diffusion of O atoms at Ru(0001) surface induced by collision of O₂ with high kinetic energy.”
S.Takahashi, T. Aruga, and Y. Teraoka, IEEJ Transactions on Fundamentals and Materials 136, 462-463 (2016)

131.”Adsorption and reaction of H₂S on Cu(110) studied using scanning tunneling microscopy”
A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, and I. Hamada, Phys. Chem. Chem. Phys. 18, 4541-4546 (2016)

130.”Real-space characterization of hydroxyphenyl porphyrin derivatives designed for single-molecule devices”
A. Shiotari, Y. Ozaki, S. Naruse, H. Okuyama, S. Hatta, T. Aruga, T. Tamaki, and T. Ogawa, RSC Advances 5, 79152-79156 (2015)

129. “Controlling single-molecule junction conductance by molecular interactions”
Y. Kitaguchi, S. Habuka, H. Okuyama, S. Hatta, T. Aruga, T. Frederiksen, M. Paulsson, and H. Ueba, Sci. Rep. 5, 11796 (2015)

128. “Experimental evidence for two-dimensional states localized in subsurface region of Ge(111)” (Preprint) (Publisher’s page)
K. Yaji, Y. Ohtsubo, S. Hatta, H. Okuyama, R. Yukawa, I. Matsuda, P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi, A. Kakizaki, T. Aruga, J. Electron Spectros. Relat. Phenom., 201, 92-97 (6 pp.) (2014). doi: 10.1016/j.elspec.2014.09.005

127. “Controlled switching of single-molecule junctions by mechanical motion of a phenyl ring”
Y. Kitaguchi, S. Habuka, H. Okuyama, S. Hatta, T. Aruga, T. Frederiksen, M. Paulsson, and H. Ueba. Beilstein J. Nanotech. 6, 2088-2095 (2015)

126. “Anomalous electrical conduction in a monatomic Pb layer on Ge(111)”
S. Hatta, T. Noma, H. Okuyama, T. Aruga, Phys. Rev. B 90, 245407 (6 pp.) (2014). DOI: http://dx.doi.org/10.1103/PhysRevB.90.245407

125. “Formation of unique trimer of nitric oxide on Cu(111)”
>A. Shiotari, S. Hatta, H. Okuyama and T. Aruga, J. Chem. Phys. 141, 134705 (6 pp.) (2014). DOI: 10.1063/1.4896558

124. “Configuration change of NO on Cu(110) as a function of temperature”
A. Shiotari, T. Mitsui, H. Okuyama, S. Hatta, T. Aruga, T. Koitaya, J. Yoshinobu, J. Chem. Phys. 140, 214706 (6 pp.) (2014). DOI: 10.1064/1.4881262

123. “Role of hydrogen bonding in the catalytic reduction of nitric oxide”
A. Shiotari, S. Hatta, H. Okuyama, and T. Aruga, Chem. Sci. 5, 922-926 (2014).

122. “Two-dimensional states localized in subsurface layers of Ge(111)”
Y. Ohtsubo, K. Yaji, S. Hatta, H. Okuyama, and T. Aruga, Phys. Rev. B 88, 245310 (7 pp.) (2013).

121. “Comparative study of phenol and thiophenol adsorption on Cu(110)”
Y. Kitaguchi, S. Habuka, T. Mitsui, H. Okuyama, S. Hatta, and T. Aruga, J. Chem. Phys. 139, 044708 (6 pp.) (2013).

120. “Structural and electronic properties of the Pb/Ge(111)-β(√3 x √3)R30° surface studied by photoelectron specterscopy and first-principles calculations”
K. Yaji, S. Hatta, T. Aruga, and H. Okuyama, Phys. Rev. B 86, 235317 (6 pp.) (2012). DOI:10.1103/PhysRevB.86.235317

119. “Spin-polarized surface states on Br/Ge(111)-(1×1): Surface spin polarization without heavy elements”
Y. Ohtsubo, S. Hatta, N. Kawai, A. Mori, Y. Takeuchi, K. Yaji, H. Okuyama, and T. Aruga, Phys. Rev. B 86, 165325 (6 pp.) (2012). DOI: 10.1103/PhysRevB.86.165325

118. “Nature of hydrogen bonding in hydroxyl groups on a metal surface”
I. Hamada, T. Kumagai, A. Shiotari, H. Okuyama, S. Hatta, and T. Aruga, Phys. Rev. B 86, 075432 (4 pp.) (2012). DOI: 10.1103/PhysRevB.86.075432

117. “Modifying current-voltage characteristics of a single molecule junction by isotope substitution: OHOD dimer on Cu(110)”
H. Okuyama, A. Shiotari, T. Kumagai, S. Hatta, T. Aruga, Y. Ootsuka, M. Paullson, and H. Ueba, Phys. Rev. B 85, 205424 (7 pp.) (2012). DOI: 10.1103/PhysRevB.85.205424

116. “A metallic surface state with unitxial spin polarization on Tl/Ge(111)-(1×1)”
Y. Ohtsubo, S. Hatta, H. Okuyama, and T. Aruga, J. Phys.: Condens. matter 24, 092001 (5 pp.) (2012). DOI:10.1088/0953-8984/24/9/092001

115. “H-atom relay reactions in real space”
T. Kumagai, A. Shiotari, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, T. Frederiksen, and H. Ueba, Nature Mat. (6 pp.) 11, 167-172 (2012). doi:10.1038/nmat3176

114. “Dynamical fluctuations in In nanowires on Si(111)”
S. Hatta, Y. Ohtsubo, T. Aruga, S. Miyamoto, H. Okuyama, H. Tajiri, and O. Sakata, Phys. Rev. B 84, 245321 (8 pp.) (2011).

113. “Structure determination of Pb/Ge(111)-beta-(√3x√3)R30° by dynamical low-energy electron diffraction analysis and first-principles calculation”
Y. Ohtsubo, H. Muto, K. Yaji, S. Hatta, H. Okuyama and T. Aruga, J. Phys.: Condens. Matter 23, 435001 (6 pp.) (2011). doi: 10.1088/0953-8984/23/43/435001

112. “Imaging sequential dehydrogenation of methanol on Cu(110) with a scanning tunneling microscope”
Y. Kitaguchi, A. Shiotari, H. Okuyama, S. Hatta, and T. Aruga, J. Chem. Phys. 134, 174703 (4 pp.) (2011). doi: 10.1063/1.3589256

111. “Imaging covalent bonding between two NO molecules on Cu(110)”
A. Shiotari, Y. Kitaguchi, H. Okuyama, S. Hatta, and T. Aruga, Phys. Rev. Lett. 106, 156104 (4 pp.) (2011). doi: 10.1103/PhysRevLett.106.156104

110. “Water clusters on Cu(110): Chain versus cyclic structures”
Takashi Kumagai, Hiroshi Okuyama, Shinichiro Hatta, Tetsuya Aruga, and Ikutaro Hamada, J. Chem. Phys. 134, 024703 (6 pp.) (2011). doi:10.1063/1.3525645

109. “Spin-polarized semiconductor surface states localized in subsurface layers”
Yoshiyuki Ohtsubo, Shinichiro Hatta, Koichiro Yaji, Hiroshi Okuyama, Koji Miyamoto, Taichi Okuda, Akio Kimura, Hirofumi Namatame, Masaki Taniguchi, and Tetsuya Aruga, Phys. Rev. B 82, 201307(R) (4 pp.) (2010).

108. “Large Rashba spin splitting of a metallic surface-state band on a semiconductor surface”
K. Yaji, Y. Ohtsubo, S. Hatta, H. Okuyama, K. Miyamoto, T. Okuda, A. Kimura, H. Namatame, M. Taniguchi, and T. Aruga, Nat. Commun. 1:17 doi: 10.1038/ncomms1016 (2010).

107. “Symmetric hydrogen bond in a water-hydroxyl complex”
T. Kumagai, M. Kaizu, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, and Y. Morikawa, Phys. Rev. B 81, 045402 (5 pp.) (2010).
DOI: 10.1103/PhysRevB.81.045402

106. “Epitaxial growth of Bi films on Ge(111)”
S. Hatta, Y. Ohtsubo, S. Miyamoto, H. Okuyama and T. Aruga
Appl. Surf. Sci. 256, 1252-1256 (2009).

105. “Large Rashba spin splitting of surface resonance bands on semiconductor surface”
S. Hatta, T. Aruga, Y. Ohtsubo and H. Okuyama, Phys. Rev. B 80, 113309 (4 pp.) (2009).

104. “Structure determination of Bi/Ge(111)-(√3×√3)R30° by dynamical low-energy electron diffraction analysis and scanning tunneling microscopy”
Y. Ohtsubo, S. Hatta, M. Iwata, K. Yaji, H. Okuyama and T. Aruga, J. Phys.: Condens. Matter 21, 405001 (6 pp.) (2009).

103. “Tunneling dynamics of a hydroxyl group adsorbed on Cu(110)”
T. Kumagai, M. Kaizu, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, and Y. Morikawa, Phys. Rev. B 79, 035423 (6 pp.) (2009).

102. “High resolution X-ray photoelectron spectroscopy study on initial oxidation of 4H-SiC(0001)-(√3×√3)R30° surface”
Shin Takahashi, Shinichiro Hatta, Akitaka Yoshigoe, Yuden Teraoka and Tetsuya Aruga, Surf. Sci. 603, 221-225 (2009).

101. “Water mononer and dimer on Cu(110) studied using a scanning tunneling microscope”
T. Kumagai, M. Kaizu, H. Okuyama, S. Hatta, T. Aruga, I. Hamada, and Y. Morikawa, e-J. Surf. Sci. Nanotech. 6, 296-300 (2008).

100. “Structure determination of Tl/Ge(111)-(3×1) by surface x-ray diffraction”
Shinichiro Hatta, Ryosuke Ohtomo, Chihiro Kato, Osami Sakata, Hiroshi Okuyama and Tetsuya Aruga, J. Phys.: Condens. Matter 20, 395226 (6 pp.) (2008).

99. “Band structure of Tl/Ge(111)-(3×1) : Angle-resolved photoemission and first-principles prediction of giant Rashba effect”
Shinichiro Hatta, Tetsuya Aruga, Chihiro Kato, Shin Takahashi, Hiroshi Okuyama, Ayumi Harasawa, Taichi Okuda, and Toyohiko Kinoshita, Phys. Rev. B 77, 245436 (8 pp.) (2008)

98. “Direct observation of hydrogen-bond exchange within a single water dimer”
T. Kumagai, M. Kaizu, S. Hatta, H. Okuyama, T. Aruga, I. Hamada, and Y. Morikawa, Phys. Rev. Lett. 100, 166101 (4 pp.) (2008).

97. “Atomic and electronic structure of Tl/Ge(111)-(1×1): LEED and ARPES measurements and first-principles calculations”
S. Hatta, C. Kato, N. Tsuboi, S. Takahashi, H. Okuyama, T. Aruga, A. Harasawa, T. Okuda, and T. Kinoshita, Phys. Rev. B 76, 075427 (8 pp.) (2007).

96. “Adsorbed states and STM-induced migration of acetylene on Cu(110)”
T. Kumagai, S. Hatta, H. Okuyama and T. Aruga, J. Chem. Phys. 126, 234708 (6 pp.) (2007). pdf

95. “Vibrationally assisted dissociative adsorption of oxygen on Ru(0001)-p(2×1)-O”
S. Takahashi, Y. Fujimoto, Y. Teraoka, A. Yoshigoe, and T. Aruga, Surf. Sci. 601, 3809-3812 (2007).

94. “Transition between tetramer and monomer phases driven by vacancy configuration entropy on Bi/Ag(001)”
T. Nakagawa, O. Ohgami, Y. Saito, H. Okuyama, M. Nishijima, and T. Aruga, Phys. Rev. B 75, 155409 (7 pp.) (2007).

93. “Vibrationally-assisted dissociative adsorption of oxygen on Ru(0001)”
S. Takahashi, Y. Fujimoto, Y. Teraoka, A. Yoshigoe, and T. Aruga, Chem. Phys. Lett. 433, 58-61 (2006).

92. “Long-period surface structure stabilized by Fermi surface nesting: Cu(001)-(√20x√20)R26.6°-In”
T. Nakagawa, H.W. Yeom, E. Rotenberg, B. Krenzer, S. D. Kevan, H. Okuyama, M. Nishijima, and T. Aruga, Phys. Rev. B 73, 075407 (5 pp.) (2006). pdf

91. “Anisotropic water chain growth on Cu(110) observed with scanning tunneling microscopy”
T. Yamada, S. Tamamori, H. Okuyama, and T. Aruga, Phys. Rev. Lett. 96, 036105 (4 pp.) (2006). pdf

90. “Dihydride formation in the reaction of water with Si(111)-(7 x 7)”
T. Yamada, Y. Ohtsuka, H. Okuyama and T. Aruga, Phys. Rev. B 72, 233306 (4 pp.) (2005). pdf

89. “Evolution of geometric and electronic structure at the Bi/Ag(001) interface”
T. Nakagawa, Y. Saito, O. Ohgami, H. Okuyama, M. Nishijima, and T. Aruga, Phys. Rev. B 72, 165405 (2005).

88. “Imaging and manipulation of initial oxidation product on Si(111)-(7 x 7)”
H. Okuyama, T. Yamada, and T. Aruga, Japan. J. Appl. Phys. Pt. 1, 44(7B) 5362-5364 (2005).

87. “Order-disorder transition in the surface charge-density-wave phase of Cu(001)-c(4×4)-In”
S. Hatta, H. Okuyama, T. Aruga, and O. Sakata, Phys. Rev. B 72, 081406 (2005). pdf

86. “Structures and magnetism of two types of c(2×2)-Mn/Pd(001) surface alloys”
N. Tsuboi, H. Okuyama, and T. Aruga, Phys. Rev. B 71, 195414 (6 pp.) (2005). pdf

85. “Secondary oxidation product on Si(111)-(7×7) characterized by isotope-labeled vibrational spectroscopy”
H. Okuyama, Y. Ohtsuka, and T. Aruga, J. Chem. Phys. 122, 234709 (5 pp.) (2005). pdf

84. “Temperature dependence of the charge-density-wave energy gap on In/Cu(001)”
S. Hatta, H. Okuyama, M. Nishijima, and T. Aruga, Phys. Rev. B 71, 041401 (2005).

83. “Fermi surface evolution and charge-density waves on In/Cu(001)”
S. Hatta, H. Okuyama, M. Nishijima, and T. Aruga, Appl. Surf. Sci. 237, 270-273 (2004).

82. “Adsorption of hydrogen on the Pd(100)-p(2×2)-p4g-Pd3Ti surface”
N. Tsuboi, H. Okuyama, and T. Aruga, Surf. Sci. 566, 777-782 (2004).

81. “Structure analysis of Cu(001)-c(4×4)-In by surface X-ray diffraction”
S. Hatta, C. J. Walker, O. Sakata, H. Okuyama, and T. Aruga, Surf. Sci. 565, 144-150 (2004).

80. “Vibrational characterization of the oxidation products on Si(111)-(7 x 7)”
H. Okuyama, T. Aruga and M. Nishijima, Phys. Rev. Lett. 91, 256102 (4 pp.) (2003). pdf

79. “Overtones of the C-H stretch vibrations on C(001)(2×1)-H”
H. Okuyama, T. Aruga and M. Nishijima, Chem. Phys. Lett. 381, 535-540 (2003).

78. “Vibrational spectroscopy of crystalline multilayer ice: Surface modes in the intermolecular-vibration region”
T. Yamada, H. Okuyama, T. Aruga and M. Nishijima, J. Phys. Chem. 107, 13962-13968 (2003).

77. “Surface phonons of C(001)(2×1)-H”
S. Thachepan, H. Okuyama, T. Aruga, M. Nishijima, T. Ando, A. Mazur, and J. Pollmann, Phys. Rev. B 68, 041402 (4 pp.) (2003).

76. “Elecronic driving mechanisms for displacive reconstruction and its lifting by hydrogen adsorption on metallic surface alloy”
N. Tsuboi, H. Okuyama, M. Nishijima and T. Aruga, Phys. Rev. B 68, 033408 (4 pp.) (2003). pdf

75. “Surface vibrations of diamond C(001)(2×1)”
S. Thachepan, H. Okuyama, T. Aruga, M. Nishijima, T. Ando, S. Bagˇcı, H. M. Tütüncü, and G. P. Srivastava, Phys. Rev. B 68, 033310 (4 pp.) (2003).

74. “Dual nature of a charge-density-wave transition on In/Cu(001)”
T. Nakagawa, H. Okuyama, M. Nishijima, T. Aruga, H. W. Yeom, E. Rotenberg, B. Krenzer and S. D. Kevan, Phys. Rev. B 67, 241401 (2003). Abstract

73. “A metastable precursor in the oxidation of Si(111)-(7×7)”
H. Okuyama, T. Miki, T. Aruga and M. Nishijima, Jpn. J. Appl. Phys. 41, L1419-L1421 (2002).

72. “Adsorbate phonons on Ni(100)(1×1)-H”
H. Okuyama, M. Z. Hossain, T. Aruga and M. Nishijima, Phys. Rev. B 66, 235411 (7 pp.) (2002). pdf

71. “Surface optical modes of ice detected by high resolution electron energy loss spectroscopy”
H. Okuyama, T. Yamada, S. Thachepan, T. Aruga and M. Nishijima, Surf. Sci. 515, L499-L503 (2002).

70. “Evolution of geometric and electronic structure in ultrathin In films on Cu(001)”
T. Nakagawa, S. Mitsushima, H. Okuyama, M. Nishijima and T. Aruga, Phys. Rev. B 66, 085402 (18 pp.) (2002).

69. “Chemisorption of O2 and CO on the K-modified Diamond (100)2×1 Surface”
M.Z. Hossain, T. Miki, H. Okuyama, T. Aruga, T. Tsuno, N. Fujimori and M. Nishijima, Diamond Relat. Mater. 10, 2049-2056 (2001).

68. “Direct evidence for the two-phonon bound states on the H/Ni(111) surface”
H. Okuyama, T. Ueda, T. Aruga, and M. Nishijima, Phys. Rev. B 63, 233404 (4 pp.) (2001). pdf

67. “Overtones of H vibrations at Ni(111): Formation of delocalized states”
H. Okuyama, T. Ueda, T. Aruga, and M. Nishijima, Phys. Rev. B 63, 233403 (4 pp.) (2001). pdf

66. “Diffusion and coalescence of bilayer surface-alloy islands of Pd(100)-p(2×2)-p4g-Al”
T. Aruga, K. Kishi, and M. Nishijima, Surf. Sci. 493, 325-330 (2001).

65. “Depth-resolved analysis of subsurface hydrogen absorbed by Pd(100)”
M. Wilde, M. Matsumoto, K. Fukutani, and T. Aruga, Surf. Sci. 482-485, 346-352 (2001).

64. “Fermi surface nesting and structural transition on a metal surface: In/Cu(001)”
T. Nakagawa, G.I. Boishin, H. Fujioka, H.W. Yeom, I. Matsuda, N. Takagi, M. Nishijima, and T. Aruga, Phys. Rev. Lett. 86, 854-857 (2001). Abstract

63. “Growth mechanism of the Pd(100)-p(2×2)-p4g-Al surface alloy”
K. Kishi, A. Oka, N. Takagi, M. Nishijima, and T. Aruga, Surf. Sci. 460, 264-276 (2000).

62. “Adsorbed states of K on the diamond (100)2×1 surface”
M.Z. Hossain, T. Kubo, T. Aruga, N. Takagi, T. Tsuno, N. Fujimori and M. Nishijima, Diamond Relat. Mater. 9, 162-169 (2000).

O3. ”An electron energy loss spectroscopy study of resonance population in ethylene chemisorbed on Pd(110)”
Okuyama H, Kato H, Kawai M, et al., J. Chem. Phys. 113, 2866-2872 (2000).

O2. “Orientation and symmetry of ethylene on Pd(110): A combined HREELS and NEXAFS study”
Okuyama H, Ichihara S, Ogasawara H, et al., J. Chem. Phys.  112, 5948-5956 (2000).

61. “Diels-Alder reaction on the diamond (100)2×1 surface”
M.Z. Hossain, T. Aruga, N. Takagi, T. Tsuno, N. Fujimori, T. Ando and M. Nishijima, Jpn. J. Appl. Phys. 38, L1496-L1498 (1999).

60. “Surface phonons, electronic structure and chemical reactivity of the diamond (100)2×1 surface”
M.Z. Hossain, T. Kubo, T. Aruga, N. Takagi, T. Tsuno, N. Fujimori and M. Nishijima, Jpn. J. Appl. Phys. 38, 6659-6666 (1999).

59. “Surface phonons on the Si(001)(2×1)”
N. Takagi, S. Shimonaka, T. Aruga and M. Nishijima, Phys. Rev. B 60, 10919-10925 (1999). Abstract

58. “Low-energy electron diffraction analysis of the buried-heteroatom type Pd(100)-p(2×2)-p4g-Al surface”
H. Onishi, H. Sakama, T. Aruga, A. Kawazu, and Y. Iwasawa, Surf. Sci. 444, 7-17 (1999).

57. “Vibrational spectra of hydrogen on the Rh(111) surface”
H. Yanagita, H. Fujioka, T. Aruga, N. Takagi and M. Nishijima, Surf. Sci. 441, 507-514 (1999).

56. “Subsurface hydrogen at Pd(100) induced by gas-phase atomic hydrogen”
H. Okuyama, T. Nakagawa, W. Siga, N. Takagi, M. Nishijima and T. Aruga, J. Phys. Chem. 103, 7876-7881 (1999).

55. “Chemisorbed states of atomic oxygen and its replacement by atomic hydrogen on the diamond (100)-(2×1) surface”
M.Z. Hossain, T. Kubo, T. Aruga, N. Takagi, T. Tsuno, N. Fujimori and M. Nishijima, Surf. Sci. 436, 63-71 (1999).

53. “Structure and chemistry of Pd(100)-p(2×2)-p4g-Al surface alloy”
K. Kishi, A. Oka, N. Takagi, M. Nishijima and T. Aruga, Surf. Sci. 427-428, 74-78 (1999).

52. “Absorption of D in the H + D/Pd(100) reaction”
H. Okuyama, T. Nakagawa, W. Siga, N. Takagi, M. Nishijima and T. Aruga, Surf. Sci. 411, L849-L854 (1998).

51. “Path and mechanism of hydrogen absorption at Pd(100)”
H. Okuyama, W. Siga, N. Takagi, M. Nishijima and T. Aruga, Surf. Sci. 401, 344-363 (1998).

48. “Adsorbed states of H on Ni(111) at 100 K: a vibrational study”
H. Yanagita, J. Sakai, T. Aruga, N. Takagi and M. Nishijima, Phys. Rev. B 56, 14952-14955 (1997). Abstract

47. “Low-energy electron diffraction analysis of the Pd(100)-p(2×2)-p4g-Al surface: A buried-heteroatom structure”
H. Onishi, H. Sakama, T. Aruga, A. Kawazu, and Y. Iwasawa, Surf. Sci. 392, L51-L55 (1997).

46. “Adsorbate-adsorbate interaction among NO and CO coadsorbed on Pd(100)”
M. Daté, H. Okuyama, N. Takagi, and T. Aruga, Appl. Surf. Sci. 121/122, 571-574 (1997).

44. “Adsorption and thermal decomposition of N2O on Si(100): Electron energy loss spectroscopy and thermal desorption studies”
T. Kubo, T. Ema, A. Atli, T. Aruga, N. Takagi and M. Nishijima, Surf. Sci. 382, 214-220 (1997) .

41. “Quantum delocalization of H on Pd(110): A vibrational study”
N. Takagi, Y. Yasui, T. Takaoka, M. Sawada, H. Yanagita, T. Aruga, and M. Nishijima, Phys. Rev. B 53, 13767-13771 (1996). Abstract

40. “Interaction of NO with CO on Pd(100): ordered coadsorption structures and explosive reaction”
M. Daté, H. Okuyama, N. Takagi, M. Nishijima, and T. Aruga, Surf. Sci. 350, 79-90 (1996).

37. “Location of an O atom in the Pd(110)c(2×4) structure – an EELS study
N. Takagi, Y. Yasui, M. Sawada, T. Aruga, and M. Nishijima, Chem. Phys. Lett. 232, 531-536 (1995).

36. “Hydrogen desorption from Si(100)(2×1)-H induced by potassium adsorption”
N. Minami, N. Takagi, M. Nishijima, and T. Aruga, Surf. Sci. 325, 11-20 (1995).

O1. “Molecular rearrangement induced by hydrogen co-adsorption: C2H4 on Pd(110)“
Okuyama H, Ichihara S, Kato H, et al., Chem. Phys. Lett.  310, 451-458 (1999).

32. “Switchover of reaction paths in the catalytic decomposition of formic acid on TiO2(110) surface”
H. Onishi, T. Aruga, and Y. Iwasawa, J. Catal. 146, 557-567 (1994).

28. “Catalytic reactions on a metal-oxide single crystal: switchover of the reaction paths in formic acid decomposition on TiO2(110)”
H. Onishi, T. Aruga, and Y. Iwasawa, J. Am. Chem. Soc. 115, 10460-10461 (1993).

27. “Novel catalytic reaction path induced by selective blocking of surface atoms: Methanol dehydrogenation on Mo(112)-(1×2)-O”
K. Fukui, T. Aruga, and Y. Iwasawa, Surf. Sci. 295, 160-168 (1993).

25. “An unusual adsorption state of hydrogen on the Pd(100)-p(2×2)-p4g-Al bimetallic surface”
H. Onishi, T. Aruga, and Y. Iwasawa, Surf. Sci. 283, 213-216 (1993).

24. “Chemisorption of CO and H2 on clean and oxygen-modified Mo(112)”
K. Fukui, T. Aruga, and Y. Iwasawa, Surf. Sci. 281, 241-252 (1993).

22. “Coadsorption of CO and methylamine on Ru(001): Reaction paths of methylamine induced by CO in ordered coadsorbed structures”
T. Sasaki, T. Aruga, H. Kuroda, and Y. Iwasawa, Surf. Sci. 276, 69-85 (1992).

21. “Ordered Oxygen on Mo(112): Modification of surface electronic structure and control of reaction path”
T. Aruga, K. Fukui, and Y. Iwasawa, J. Am. Chem. Soc. 114, 4911-4912 (1992).

19. “Photoelectron spectroscopic study of clean and CO adsorbed Ni/TiO2(110) interfaces”
H. Onishi, T. Aruga, C. Egawa, and Y. Iwasawa, Surf. Sci. 233, 261-268 (1990).

18. “Interaction between CO and NH3 coadsorbed on Ru(001): its effects on the ordering in mixed adlayers and the ammonia dissociation”
T. Sasaki, T. Aruga, H. Kuroda, and Y. Iwasawa, Surf. Sci. 240, 223-244 (1990).

R1. “Alkali-metal adsorption on metals”
T. Aruga and Y. Murata, Prog. Surf. Sci. 31, 61-130 (1989).

17. “Active structure and electronic states for adsorption of CO2 and NO on Na/TiO2(110)　surface”
H. Onishi, T. Aruga, C. Egawa, and Y. Iwasawa, J. Chem. Soc., Faraday Trans. 1 85, 2597-2604 (1989).

16. “Coadsorption of NH3 and CO on Ru(001): The ordering in mixed layers and the effect of intermolecular interactions on NH3 dissociation”
T. Sasaki, T. Aruga, H. Kuroda, and Y. Iwasawa, Surf. Sci. 224, L969-L978 (1989).

14. “Modification of surface electronic structure of TiO2(110) and (441) by Na deposition”
H. Onishi, T. Aruga, C. Egawa, and Y. Iwasawa, Surf. Sci. 199, 54-66 (1988).

13. “Adsorption of CH3OH, HCOOH and SO2 on TiO2(110) and stepped TiO2(441) surfaces”
H. Onishi, T. Aruga, C. Egawa, and Y. Iwasawa, Surf. Sci. 193, 33-46 (1987).

12. “Adsorption of Na atoms and oxygen-containing molecules on MgO(100) and (111) surfaces”
H. Onishi, C. Egawa, T. Aruga, and Y. Iwasawa, Surf. Sci. 191, 479-491 (1987).

9. “Order-disorder transition on Si(001): c(4×2) to (2×1)”
T. Tabata, T. Aruga, and Y. Murata, Surf. Sci. 179, L63-L70 (1987).

8. “Valence-electronic structure of potassium adsorbed on Cu(001) deduced from work-function change and electron-energy-loss spectroscopy”
T. Aruga, H. Tochihara, and Y. Murata, Phys. Rev. B 34, 8237-8245 (1986).

7. “Ordered-defect model for Si(001)-(2×8)”
T. Aruga and Y. Murata, Phys. Rev. B 34, 5654-5657 (1986).

6. “Two-dimensional condensation of K adatoms on Cu(001)”
T. Aruga, H. Tochihara, and Y. Murata, Surf. Sci. 175, L725-L729 (1986).

5. “Structure and transitions of K monolayers on Cu(001)”
T. Aruga, H. Tochihara, and Y. Murata, Surf. Sci. 158, 490-496 (1985).

4. “Measurement of overlayer plasmon dispersion in K chains adsorbed on Si(001)2×1”
T. Aruga, H. Tochihara, and Y. Murata, Phys. Rev. Lett. 53, 372-375 (1984).

2. “Rotational epitaxy of chemisorbed K monolayers on Cu(001)”
T. Aruga, H. Tochihara, and Y. Murata, Phys. Rev. Lett. 52, 1794-1797 (1984).