Quantum tunneling of magnetization in Fe-substituted Mn-12 studied by ac magnetic susceptibility
Quantum tunneling of magnetization in Fe-substituted Mn-12 studied by ac magnetic susceptibility
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DOI：
10.1103/physrevb.72.054445
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发表时间：
2005-08
影响因子：
3.7
通讯作者：
H. Cao;Lunhua He;Zhang;Xixiang Zhang;Fangwei Wang;Q. Yan
中科院分区：
文献类型：
--
作者：
H. Cao;Lunhua He;Zhang;Xixiang Zhang;Fangwei Wang;Q. Yan
Quantum tunneling of magnetization (QTM) in an Fe-substituted single molecular magnet Mn11Fe has been studied by ac susceptibility measurements in Mn11Fe/Mn-12 mixed crystal. Although the blocking temperature of the Mn11Fe is lower than 2 K, a tunneling peak at a static magnetic field of 6 kOe was observed in the ac susceptibility with a suitable ac frequency (9873 Hz) at 5 K. This work also elucidates a way to choose the proper ac frequency to observe the QTM at a relatively higher temperature (T > T-B).
