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journal article·2017-12-01Open access

Tuning antiferromagnetic exchange interaction for spontaneous exchange bias in MnNiSnSi system

Liyun Jia, Jianlei Shen, Mengmeng Li, Xi Wang, Li Ma, Congmian Zhen, Denglu Hou, Enke Liu, Wenhong Wang, Guangheng Wu

APL Materials· Volume 5· Issue 12
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Source abstract

Abstract

Based on almost all the data from the literature on spontaneous exchange bias (SEB), it is expected that the system will show SEB if it meets two conditions simultaneously: (i) there are the coexistence and competition of antiferromagnetic (AFM) and ferromagnetic (FM) interactions and (ii) AFM interaction should dominate but not be too strong in this competition. In order to verify this view, a systematic study on SEB has been performed in this work. Mn50Ni40Sn10 with strong FM interaction and without SEB is chosen as the mother composition, and the negative chemical pressure is introduced by the substitution of Sn by Si to enhance AFM interaction. It is found that a long-range FM ordering window is closed, and a long-range AFM ordering window is opened. As a result, SEB is triggered and a continuous tuning of the spontaneous exchange bias field (HSEB) from 0 Oe to 1300 Oe has been realized in a Mn50Ni40Sn10−xSix system by the enhanced AFM interaction.
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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Rare-earth and actinide compounds · Shape Memory Alloy Transformations

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, Hebei Advanced Thin Films Laboratory, Hebei Normal University 1 , Shijiazhuang 050024, China

Department of Mathematics and Physics, Hebei Institute of Architecture Civil Engineering 2 , Zhangjiakou 075000, China

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences 3 , Beijing 100190, China

Funding

Department of science and technology of Hebei province scientific and technological research project · the Financial support science and technology plan projects of Zhangjiakou city · the Graduate student innovation fund project of Hebei province · the Key Projcet of Nature Science of Higher Education · National Natural Science Foundation of China · Natural Science Foundation of Hebei Province

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