Influence of measurement field on the magnetic domains for zero-field cooling exchange bias effect in Ni50Mn37Ga13 alloy
Source abstract
Abstract
The exchange bias effect obtained after zero field cooling (ZEB) not only saves energy but also makes the device easier to control and reduces the size of the device. In this work, the ZEB effect under different measurement fields is obtained in Ni 50Mn 37Ga 13 alloy, further, combining the macroscopic magnetic test and phase field simulation, the microscopic magnetic states under different measurement fields are studied. Through phase field simulation, it is revealed that the density of the ferromagnetic (FM)/antiferromagnetic (AFM) interface first expands and then shrinks with the increase of measurement field, which thus explains the optimum ZEB at an intermediate measurement field. This work reveals the important role of the FM/AFM interface in the ZEB effect.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Applications · Shape Memory Alloy Transformations · Magnetic properties of thin films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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