Hydrostatic-pressure-induced changes of magnetic anisotropy in (Ga, Mn) As thin films

作者:Gryglas Borysiewicz Marta*; Juszynski Piotr; Kwiatkowski Adam; Przybytek Jacek; Sadowski Janusz; Sawicki Maciej; Tokarczyk Mateusz; Kowalski Grzegorz; Dietl Tomasz; Wasik Dariusz
来源:Journal of Physics: Condensed Matter , 2017, 29(11): 115805.
DOI:10.1088/1361-648X/aa546d

摘要

The impact of hydrostatic pressure on magnetic anisotropy energies in (Ga, Mn) As thin films with in-plane and out-of-plane magnetic easy axes predefined by epitaxial strain was investigated. In both types of sample we observed a clear increase in both in-plane and out-of-plane anisotropy parameters with pressure. The out-of-plane anisotropy constant is well reproduced by the mean-field p-d Zener model; however, the changes in uniaxial anisotropy are much larger than expected in the Mn-Mn dimer scenario.

  • 出版日期2017-3-22