Large exchange bias after zero-field cooling from an unmagnetized state
Exchange bias (EB) is usually observed in systems with an interface between different magnetic phases after field cooling. Here we report an unusual phenomenon in which a large EB can be observed in Ni-Mn-In bulk alloys after zero-field cooling from an unmagnetized state. We propose that this is rel...
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| Veröffentlicht in: | Physical review letters 2011-02, Vol.106 (7), p.077203-077203, Article 077203 |
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| container_end_page | 077203 |
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| container_issue | 7 |
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| container_title | Physical review letters |
| container_volume | 106 |
| creator | Wang, B M Liu, Y Ren, P Xia, B Ruan, K B Yi, J B Ding, J Li, X G Wang, L |
| description | Exchange bias (EB) is usually observed in systems with an interface between different magnetic phases after field cooling. Here we report an unusual phenomenon in which a large EB can be observed in Ni-Mn-In bulk alloys after zero-field cooling from an unmagnetized state. We propose that this is related to the newly formed interface between different magnetic phases during the initial magnetization process. The magnetic unidirectional anisotropy, which is the origin of the EB effect, can be created isothermally below the blocking temperature. |
| doi_str_mv | 10.1103/PhysRevLett.106.077203 |
| format | Article |
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| title | Large exchange bias after zero-field cooling from an unmagnetized state |
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