Large exchange bias after zero-field cooling from an unmagnetized state

B. M. Wang; Y. Liu; P. Ren; B. Xia; K. B. Ruan; J. B. Yi; J. Ding; X. G. Li; L. Wang

doi:10.1103/PhysRevLett.106.077203

Large exchange bias after zero-field cooling from an unmagnetized state

Materials Science 2015-05-27 v1

Authors: B. M. Wang , Y. Liu , P. Ren , B. Xia , K. B. Ruan , J. B. Yi , J. Ding , X. G. Li , L. Wang

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Exchange bias (EB) is usually observed in systems with 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 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 EB effect, can be created isothermally below the blocking temperature.

Keywords

exchange bias zero-field cooling Ni-Mn-In bulk alloys magnetic interface unidirectional anisotropy blocking temperature

Cite

@article{arxiv.1101.4737,
  title  = {Large exchange bias after zero-field cooling from an unmagnetized state},
  author = {B. M. Wang and Y. Liu and P. Ren and B. Xia and K. B. Ruan and J. B. Yi and J. Ding and X. G. Li and L. Wang},
  journal= {arXiv preprint arXiv:1101.4737},
  year   = {2015}
}

Comments

including supplementary information, Accepted by Physical Review Letters

Large exchange bias after zero-field cooling from an unmagnetized state

Abstract

Keywords

Cite

Comments

Related papers