128  S=1/2 Kagome Lattice Antiferromagnet Cu3V2O7(OH)2 · 2H2O Studied by High Field ESR
H. Ohta , W. Zhang , S. Okubo , M. Tomoo , M. Fujisawa , H. Yoshida , Y. Okamoto , Z. Hiroi
J. Phys.: Conf. Series 145 (2009) 012010.

129 High field ESR measurements of S=1/2 kagome Heisenberg antiferromagnet ZnCu3(OH)6Cl2
S. Okubo, M. Tomoo, H. Ohta, and H. Kikuchi
J. Phys.: Conf. Series 145 (2009) 012011.

130. Multi-frequency ESR study of S=1/2 frustration systems ZnxCu4−x(OH)6Cl2
M. Tomoo, S. Okubo, T. Sakurai, T. Tomita, M. Fujisawa, H. Ohta H. Kikuchi
J. Phys.: Conf. Series 145 (2009) 012035.

131. Magnetic Susceptibility Measurement Under High Pressure and Magnetization Measurement
of S=1/2 Dioptase Lattice Antiferromagnet
H. Ohta, M.Fujisawa, N. Souda, S.Okubo, E.Ohmichi, T.Sakurai, H.Kikuchi, T. Ono, H.Tanaka, K. Matsubayashi, Y. Uwatoko
J. Phys.:Conf. Series 150 (2009) 042151.

132. Impurity effect of an S = 1/2 two leg spin ladder antiferromagnet [Ph(NH3)]([18]crown-6)[Ni(dmit)2] studied by ESR
Masashi Fujisawa, Atsushi Asakura, Susumu Okubo, Hitoshi Ohta, Sadafumi Nishihara, Tomoyuki Akutagawa, Takayoshi Nakamura, Yuko Hosokoshi
J. Phys.:Conf. Series 150 (2009) 042034.

133. High field ESR measurements of quantum triple chain system Cu3(OH)4SO4
S. Okubo, H. Yamamoto, M. Fujisawa, H. Ohta, T. Nakamura, and H. Kikuchi
J. Phys.:Conf. Series 150 (2009) 042156.

134. High-field and high-pressure ESR measurements of SrCu2(BO3)2
T. Sakurai, M. Tomoo, S. Okubo, H. Ohta, K. Kudo, Y. Koike
J. Phys.:Conf. Series 150 (2009) 042171.

135. High frequency ESR measurements of Co-delta chain
W. Zhang, S. Okubo, M. Fujisawa, T. Tomita, H. Ohta, and H. Kikuchi
J. Phys.:Conf. Series 150 (2009) 042243.

136. Development and Application of High-Frequency ESR up to 55 T
H. Ohta, S. Okubo, N. Souda, M. Tomoo, T. Sakurai, T. Yoshida, E. Ohmichi, M. Fujisawa, H. Tanaka, and R. Kato
Appl. Magn. Reson. 35 (2009) 399-410.

137. Dzyaloshinsky-Moriya interaction in the S=1/2 quasi-one-dimensional antiferromagnet Cu2Cl4H8C4O2 as determined via high-frequency ESR
M. Fujisawa, K. Shiraki, S. Okubo, H. Ohta, M. Toshida, H. Tanaka, T. Sakai
Phys. Rev. B 80 (2009) 012408/1-4.

138. High-Field ESR Measurements of S=1/2 Kagome Lattice Antiferromagnet BaCu3V2O8(OH)2
Wei-min Zhang, Hitoshi Ohta, Susumu Okubo, Masashi Fujisawa,  Takahiro Sakurai, Yoshihiko Okamoto, Hiroyuki Yoshida and Zenji Hiroi
J, Phys. Soc. Jpn. 79(2) (2010).023708/1-4. (2010 Feb. published)

139. Spin dynamics of S=1/2 kagome lattice antiferromagnets observed by high –field ESR
H. Ohta, W-M Zhang, S. Okubo, M. Fujisawa, T. sakurai, Y. Okamoto, H. Yoshida and Z. Hiroi
Phys. Status Solidi B, 247(3) (2010) 679-681. (2010 March published)

140. Development of Multi-extreme ESR Measurement System in Kobe
H. Ohta, E. Ohmichi, S. Okubo, T. Sakurai, M. Fujisawa
Low Temp. Phys. 159 (2010) 302-306. (2010 March published)

141. Photoluminescence Measurement of Er,O-Codoped GaAs Under a Pulsed Magnetic Field up to 60 T
H. Ohta, O. Portugall, N. Ubrig, M. Fujisawa, H. Katsuno, E. Fatma, S. Okubo, Y.Fujiwara
J. Low Temp. Phys. 159 (2010) 203-207. (2010 March published)

142. High Field ESR Measurements of S=1/2 Quasi One-Dimensional Antiferromagnet Cu3Mo2O9
S. Okubo, T. Yoshida, M. Fujisawa, T. Sakurai, H. Ohta, T. Hamasaki, H. Kuroe, T. Sekine, M. hase, K. Oka, T. Ito, H. Eisaki
J. Low Temp. Phys. 159 (2010) 32-36. (2010 March published)

143. Magnetic properties of magnetic semiconductor GaAs:Er,O studied by ESR
M. Fujisawa, A. Asakura, F. Elmasry, S. Okubo, H. Ohta and Y. Fujiwara
J. Phys.: Conf. Series 200 (2010) 062005

144. Spin-Gap Observation in the Triangular Lattice Antiferromagnet InMnO3 by High-Field ESR
H. Ohta, N. Matsumi, S.Okubo, M. Fujisawa, T. Sakurai, H. Kikuchi, K. Furukawa and T. Nakamura
J. Phys.: Conf. Series 200 (2010) 022041

145. High field ESR measurements of S=3/2 honeycomb lattice antiferromagnet Bi3Mn4O12NO3
S. Okubo, F. Elmasry, W-M Zhang, M. Fujisawa, T, sakurai, H.Ohta, M. Azuma, O.A.Sumirnova, N. Kumada
J. Phys.: Conf. Series 200 (2010) 022042

146. 51V-NMR Study of Honeycomb Lattice Antiferromagnet InCu2/3V1/3O3
Y. Fujii, D. Takahashi, Y. Kubo, H. Kikuchi, A. Matsuo, K. Kindo, S.Okubo and H. Ohta
J. Phys.: Conf. Series 200 (2010) 022010-1-4