Magnetization and spin dynamics of a Cr-based magnetic cluster:Cr7Ni

作者: A. Bianchi , S. Carretta , P. Santini , G. Amoretti , Y. Furukawa

DOI: 10.1016/J.JMMM.2009.03.006

关键词:

摘要: Abstract We study the magnetization and spin dynamics of Cr 7 Ni ring-shaped magnetic cluster. Measurements at high pulsed fields low temperature are compared to calculations show that Hamiltonian approach provides a good description molecule. In addition, phonon-induced relaxation molecular observables has been investigated. By assuming spin–phonon coupling take place through modulation local crystal fields, it is possible evaluate decay fluctuations two generic observables. The nuclear spin–lattice rate 1 / T directly probes such fluctuations, allows determine magnetoelastic strength.

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