Abrupt relaxation in high-spin molecules

[摘要] Mean-field model suggests that the rate of resonant quantum tunneling in high-spin molecules is not only field-dependent but also time-dependent. The relaxation-assisted resonant tunneling in high-spin molecules produces an abrupt magnetization change during relaxation. When the applied field is very close to the resonant field, a time-dependent interaction field gradually shifts the energies of different collective spin states, and magnetization tunneling is observed as two energies of the spin states coincide. (C) 2000 Elsevier Science B.V. All rights reserved.

[发布日期] 2000-02-01

[效力级别]  Proceedings Paper

[关键词] resonant tunneling;magnetic viscosity;high-spin