TY - JOUR
T1 - Synchrotron X-ray diffraction studies of the incommensurate phase of a spin-Peierls system CuGeO3 in strong magnetic fields
AU - Narumi, Yasuo
AU - Katsumata, Koichi
AU - Tabata, Yoshikazu
AU - Kimura, Shojiro
AU - Tanaka, Yoshikazu
AU - Nakamura, Tetsuya
AU - Shimomura, Susumu
AU - Matsuda, Masaaki
AU - Harada, Isao
AU - Nishiyama, Yoshihiro
AU - Ishikawa, Tetsuya
AU - Kitamura, Hideo
AU - Hara, Toru
AU - Tanaka, Takashi
AU - Tamasaku, Kenji
AU - Yabashi, Makina
AU - Goto, Shunji
AU - Ohashi, Haruhiko
AU - Takeshita, Kunikazu
AU - Ohata, Toru
AU - Matsushita, Tomohiro
AU - Bizen, Teruhiko
PY - 2004/10
Y1 - 2004/10
N2 - Synchrotron X-ray diffraction measurements on a spin-Peierls material CuGeO3 in applied magnetic fields, H, up to 15 T are made. We find that the temperature, T, dependence of the incommensurate Bragg peak at a lower H is quite different from that at a higher H. At sufficiently high fields, we find that the lattice incommensurability, δ1, is almost independent of T, while at H slightly above the critical field = 12.25 T for the commensurate to incommensurate transition, δ1 decreases with increasing T. We interpret that this finding is due to a stabilization of the incommensurate state by a strong magnetic field which suppresses thermal fluctuations.
AB - Synchrotron X-ray diffraction measurements on a spin-Peierls material CuGeO3 in applied magnetic fields, H, up to 15 T are made. We find that the temperature, T, dependence of the incommensurate Bragg peak at a lower H is quite different from that at a higher H. At sufficiently high fields, we find that the lattice incommensurability, δ1, is almost independent of T, while at H slightly above the critical field = 12.25 T for the commensurate to incommensurate transition, δ1 decreases with increasing T. We interpret that this finding is due to a stabilization of the incommensurate state by a strong magnetic field which suppresses thermal fluctuations.
KW - CuGeO
KW - High magnetic field
KW - Incommensurate phase
KW - Spin-Peierls compound
KW - Synchrotron X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=13544276126&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.73.2650
DO - 10.1143/JPSJ.73.2650
M3 - Article
AN - SCOPUS:13544276126
SN - 0031-9015
VL - 73
SP - 2650
EP - 2653
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 10
ER -