Ferromagnetic semiconductors

By T. Dietl. 2002

553 citations recorded by the source corpus.

The current status and prospects of research on ferromagnetism in semiconductors are reviewed. The question of the origin of ferromagnetism in europium chalcogenides, chromium spinels and, particularly, in diluted magnetic semiconductors is addressed. The nature of electronic states derived from 3d of magnetic impurities is discussed in some details. Results of a quantitative comparison between experimental and theoretical results, notably for Mn-based III-V and II-VI compounds, are presented. This comparison demonstrates that the current theory of the exchange interactions mediated by holes in the valence band describes correctly the values of Curie temperatures T C, magnetic anisotropy, domain structure, and magnetic circular dichroism. On this basis, chemical trends are examined and show to lead to the prediction of semiconductor systems with T C that may exceed room temperature, an expectation that are being confirmed by recent findings. Results for materials containing magnetic ions other than Mn are also presented emphasizing that the double exchange involving hoping through d states may operate in those systems.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/0d70a5989e36966360c349164d43271448e0e90e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. T. Dietl
2. J. Sinova
3. Allan H. MacDonald
4. T. Jungwirth
5. J. Masek
6. Jan Kucera
7. Hideo Ohno

In Electronic, Optical and Magnetic Materials

1. Hideo Ohno
2. T. Dietl
3. T. Jungwirth
4. Allan H. MacDonald
5. J. Sinova
6. Jan Kucera
7. J. Masek

In Materials Chemistry

1. T. Dietl
2. Hideo Ohno
3. J. Sinova
4. T. Jungwirth
5. Allan H. MacDonald
6. J. Masek
7. Jan Kucera
8. N. Nagaosa

Citations in the corpus

• Dilute ferromagnetic semiconductors: Physics and spintronic structures (2013, background): “…of Mn in II-VI compounds can be associated to the truly divalent character of Mn whose d states little perturb the sp3 tetrahedral bonds as both the lower d5 (donor) and the upper d6 (acceptor) Hubbard levels are respectively well below and above the band edges (Dietl, 1981, 2002; Zunger, 1986).”
• Theory of ferromagnetic (III, Mn) V semiconductors (2006, methodology): “Theoretical predictions based on this model for a number of properties of bulk DMSs and heterostructures are reviewed in (Dietl, 2002, 2003; König et al., 2003; Lee et al., 2002).”