TY - JOUR
T1 - µSR Studies on Spin-Peierls System Cu1−xZnxGeO3 (x=0, 0.01, 0.03, and 0.07)
AU - Sohma, Akio
AU - Okajima, Haruo
AU - Yokoo, Tetsuya
AU - Yamashita, Atsushi
AU - Akimitsu, Jun
AU - Nishiyama, Kusuo
AU - Nagamine, Kanetada
PY - 1995/8
Y1 - 1995/8
N2 - The zero-field and the longitudinal field spin-relaxations of positive muon (μ+) were measured in Cu1−xZnxGeO3 (x=0, 0.01, 0.03, and 0.07) to study the spin-Peierls system. The obtained relaxation functions were separated into two components below TSP in CuGeO3. We conclude that the fast relaxation is originated from a few Cu2+ spins being not coupled with spin-singlet state, and that the slow relaxation is due to the nuclear dipolar fields. The fast relaxation function shape changes to the Gaussian at 5 k in the sample of x=0.07. The system changes from the static diluted to the densed one. We also confirmed the appearances of the spin-glass-like relaxations at 5 K in the samples of x=0.03 and 0.07.
AB - The zero-field and the longitudinal field spin-relaxations of positive muon (μ+) were measured in Cu1−xZnxGeO3 (x=0, 0.01, 0.03, and 0.07) to study the spin-Peierls system. The obtained relaxation functions were separated into two components below TSP in CuGeO3. We conclude that the fast relaxation is originated from a few Cu2+ spins being not coupled with spin-singlet state, and that the slow relaxation is due to the nuclear dipolar fields. The fast relaxation function shape changes to the Gaussian at 5 k in the sample of x=0.07. The system changes from the static diluted to the densed one. We also confirmed the appearances of the spin-glass-like relaxations at 5 K in the samples of x=0.03 and 0.07.
KW - CuGeO
KW - spin glass transition
KW - spin-Peierls transition
KW - μSR
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U2 - 10.1143/JPSJ.64.3060
DO - 10.1143/JPSJ.64.3060
M3 - Article
AN - SCOPUS:21844514166
VL - 64
SP - 3060
EP - 3065
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 8
ER -