TY - JOUR
T1 - Spin-lattice relaxation of paramagnetic spin in phosphate glass under high magnetic field
AU - Kitamura, N.
AU - Matsubara, I.
AU - Funahashi, R.
AU - Ohta, H.
AU - Nojiri, H.
AU - Mitsudo, S.
AU - Sakon, T.
AU - Motokawa, M.
N1 - Funding Information:
This work was partly supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports and Culture, Japan.
PY - 1999/3
Y1 - 1999/3
N2 - Measurements of time-resolved magnetization and AC susceptibility have been performed for copper-doped calcium metaphosphate glasses under high magnetic field. A crossover of relaxation process was found at about 1 T. At lower fields below 1 T, the relaxation rate has B0.3 dependence and changed remarkably at a certain copper concentration which indicates a distance between copper ions by approximately 15 angstroms. The slow spin-lattice relaxation suggests that the vibrational excitation is localized strongly in the small area.
AB - Measurements of time-resolved magnetization and AC susceptibility have been performed for copper-doped calcium metaphosphate glasses under high magnetic field. A crossover of relaxation process was found at about 1 T. At lower fields below 1 T, the relaxation rate has B0.3 dependence and changed remarkably at a certain copper concentration which indicates a distance between copper ions by approximately 15 angstroms. The slow spin-lattice relaxation suggests that the vibrational excitation is localized strongly in the small area.
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U2 - 10.1016/S0921-4526(98)01364-7
DO - 10.1016/S0921-4526(98)01364-7
M3 - Conference article
AN - SCOPUS:0032665530
SN - 0921-4526
VL - 263-264
SP - 303
EP - 305
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
T2 - Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98
Y2 - 26 July 1998 through 31 July 1998
ER -