51. Probing the ground state and zero-field cooled exchange bias by magnetoresistance measurement in Mn50Ni41Sn9 ribbon.
- Author
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Chen, Jiyun, Tu, Ruikang, Fang, Xiaoting, Gu, Quanchao, Zhou, Yanying, Cui, Rongjing, Han, Zhida, Zhang, Lei, Fang, Yong, Qian, Bin, Zhang, Chengliang, and Jiang, Xuefan
- Subjects
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MANGANESE compounds , *GROUND state (Quantum mechanics) , *MAGNETORESISTANCE measurement , *NANORIBBONS , *COOLING , *FERROMAGNETISM - Abstract
Recently, a new type of exchange bias (EB) after zero-field cooling has attracted considerable interest mainly in bulk magnetic competing systems. Here, we use a detailed magnetotransport investigation to probe the ground state and zero-field cooled EB (ZEB) in Mn 50 Ni 41 Sn 9 ribbon. Both ZEB and field cooled EB were detected in magnetoresistance results consistent with magnetic measurement. A pure spin-glass ground state is proposed based on parabolic shape of low-field magnetoresistance combined with AC magnetization, memory effect. The appearance of ZEB is attributed to the field-induced nucleation and growth of ferromagnetic domains in the spin glass matrix forming unidirectional anisotropy at the interface. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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