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

• 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.

Subject headings

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Keyword

magnetic anisotropy

(Ga

Mn)As

thin films

hydrostatic pressure

spintronics

Condensed Matter Physics

Kondenserade materians fysik

Publication and Content Type

ref (subject category)

art (subject category)