Theory of ferromagnetic (III,Mn)V semiconductors

Details Theory of ferromagnetic (III,Mn)V semiconductors Theory of ferromagnetic (III,Mn)V semiconductors

2006-03-14

arxiv.org/abs/cond-mat/0603380v2

Physics

Condensed Matter

Materials Science

58 pages, 49 figures Version accepted for publication in Rev. Mod. Phys. Related webpage: http://unix12.fzu.cz/ms/

Scientific paper

10.1103/RevModPhys.78.809

The body of research on (III,Mn)V diluted magnetic semiconductors initiated during the 1990's has concentrated on three major fronts: i) the microscopic origins and fundamental physics of the ferromagnetism that occurs in these systems, ii) the materials science of growth and defects and iii) the development of spintronic devices with new functionalities. This article reviews the current status of the field, concentrating on the first two, more mature research directions. From the fundamental point of view, (Ga,Mn)As and several other (III,Mn)V DMSs are now regarded as textbook examples of a rare class of robust ferromagnets with dilute magnetic moments coupled by delocalized charge carriers. Both local moments and itinerant holes are provided by Mn, which makes the systems particularly favorable for realizing this unusual ordered state. Advances in growth and post-growth treatment techniques have played a central role in the field, often pushing the limits of dilute Mn moment densities and the uniformity and purity of materials far beyond those allowed by equilibrium thermodynamics. In (III,Mn)V compounds, material quality and magnetic properties are intimately connected. In the review we focus on the theoretical understanding of the origins of ferromagnetism and basic structural, magnetic, magneto-transport, and magneto-optical characteristics of simple (III,Mn)V epilayers, with the main emphasis on (Ga,Mn)As. The conclusions we arrive at are based on an extensive literature covering results of complementary ab initio and effective Hamiltonian computational techniques, and on comparisons between theory and experiment.

Affiliated with

Also associated with

No associations

Rating

Theory of ferromagnetic (III,Mn)V semiconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Theory of ferromagnetic (III,Mn)V semiconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of ferromagnetic (III,Mn)V semiconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-704638