(Ga,Mn)As based superlattices and the search for antiferromagnetic interlayer coupling

Details (Ga,Mn)As based superlattices and the search for antiferromagnetic interlayer coupling (Ga,Mn)As based superlattices and the search for antiferromagnetic interlayer coupling

2008-02-03

arxiv.org/abs/0802.0275v2

Phys. Rev. B 78, 165312 (2008)

Physics

Condensed Matter

Materials Science

11 pages, 9 figures

Scientific paper

10.1103/PhysRevB.78.165312

Antiferromagnetic interlayer coupling in dilute magnetic semiconductor superlattices could result in the realisation of large magnetoresistance effects analogous to the giant magnetoresistance seen in metallic multilayer structures. In this paper we use a mean-field theory of carrier induced ferromagnetism to explore the multidimensional parameter space available in (Ga,Mn)As based superlattice systems. Based on these investigations we examine the feasibility of creating a superlattice that exhibits antiferromagnetic coupling and suggest potentially viable recipes.

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