Giant Vertical Magnetization Shift Caused by Field-Induced Ferromagnetic Spin Reconfiguration in Ni(50)Mn(36)Ga(14) Alloy

Vertical magnetization shift (VMS) is a special type of exchange bias effect that may lead to a revolution in future ultrahigh-density magnetic recording technology. However, there are very few reports focusing on the performance of VMS due to the unclear mechanism. In this paper, a giant vertical m...

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Detalles Bibliográficos
Autores principales: Tian, Fanghua, Zhang, Yin, Zhou, Chao, Zhao, Qizhong, Yu, Zhonghai, Murtaza, Adil, Zuo, Wenliang, Yang, Sen, Song, Xiaoping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7659958/
https://www.ncbi.nlm.nih.gov/pubmed/33105593
http://dx.doi.org/10.3390/ma13214701
Descripción
Sumario:Vertical magnetization shift (VMS) is a special type of exchange bias effect that may lead to a revolution in future ultrahigh-density magnetic recording technology. However, there are very few reports focusing on the performance of VMS due to the unclear mechanism. In this paper, a giant vertical magnetization shift (M(E)) of 6.34 emu/g is reported in the Ni(50)Mn(36)Ga(14) alloy. The VMS can be attributed to small ferromagnetic ordered regions formed by spin reconfiguration after field cooling, which are embedded in an antiferromagnetic matrix. The strong cooling-field dependence, temperature dependence, and training effect all corroborate the presence of spin reconfiguration and its role in the VMS. This work can enrich VMS research and increase its potential in practical applications as well.

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