Relative-thickness dependence of exchange bias in bilayers and trilayers
Relative-thickness dependence of exchange bias in bilayers and trilayers
复制标题
双层和三层交换偏压的相对厚度依赖性
DOI：
10.1016/j.jmmm.2012.05.040
复制
发表时间：
2012-09
影响因子：
2.7
通讯作者：
Du, An
中科院分区：
文献类型：
--
作者：
Hu, Yong;Wu, Guo-Zhen;Liu, Yan;Du, An
我们考虑铁磁 (FM)/反铁磁 (AFM) 双层和三层模型，并采用改进的蒙特卡罗方法来研究它们在场冷却后的低温交换偏压 (EB) 特性，以增加一个部件的厚度而牺牲另一个部件的厚度。结果表明，由于 FM 层比 AFM 层厚，因此 EB 对厚度变化不敏感。否则，随着FM厚度的减小，它会急剧增加，但由于FM和AFM厚度的双重影响，纯粹的反比例不再有效。三层中的 EB 应比双层中的大约两倍大，因为与双层相比，三层中存在双倍界面面积，但分散的 FM/AFM 分布可能会因热不稳定而打破这种关系。此外，EB 独立于 FM/AFM 堆叠序列，可能是因为它们之间的理想接口。已经明确表明，通过改变异质结构中的 FM/AFM 尺寸来控制 EB 对于自旋电子学应用来说是有吸引力的。
We consider the models of ferromagnetic (FM)/antiferromagnetic (AFM) bilayers and trilayers and perform a modified Monte Carlo method to study their exchange bias (EB) properties at low temperature after field cooling on increasing one component thickness at the expense of the other one. The results indicate that EB is insensitive to the thickness variations as the FM layer is thicker than the AFM one. Otherwise, it has a steep increase with the decrease of FM thickness, but the purely inverse proportion is no longer valid due to the dual influences of FM and AFM thicknesses. EB in trilayers should be approximately twice larger than that in bilayers because there is a double interfacial area in the trilayers compared with the bilayers, but the dispersed FM/AFM distributions may break this relation as a result of thermal destabilization. Moreover, EB is independent of FM/AFM stacking sequences probably because of the ideal interface between them. It has been clarified unambiguously that such control of EB through varying the FM/AFM dimensions in heterostructures is attractive for spintronics applications.
登录
查看更多内容
影响因子：
2.1
作者：
András Kovács;A. Kohn;J. Dean;T. Schrefl;A. Zeltser;Matthew J. Carey
通讯作者：
András Kovács;A. Kohn;J. Dean;T. Schrefl;A. Zeltser;Matthew J. Carey
影响因子：
2.1
作者：
G. Vallejo-Fernandez;K. O’Grady
通讯作者：
G. Vallejo-Fernandez;K. O’Grady
影响因子：
2.7
作者：
Bolon, Bruce T.;Haugen, M. A.;Leighton, C.
通讯作者：
Leighton, C.
影响因子：
2.1
作者：
N. P. Aley;S. Takayama;A. Hirohata;K. O’Grady
通讯作者：
N. P. Aley;S. Takayama;A. Hirohata;K. O’Grady
影响因子：
2.1
作者：
Restrepo-Parra, E.;Restrepo, J.;Riano-Rojas, J. C.
通讯作者：
Riano-Rojas, J. C.