DOI: 10.1063/1.361338. Polaron-polaron interactions in diluted magnetic semiconductors

Polaron-polaron interactions in diluted magnetic semiconductors

10.1063/1.361338

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The bound magnetic polaron (BMP) is the characteristic collective state of diluted magnetic semiconductors. Isolated BMP are well understood, but their interactions are only beginning to be explored. Recent polaron magnetization experiments on p-ZnMnTe suggest a ferromagnetic polaron-polaron interaction, in contrast to the invariably antiferromagnetic impurity exchange interaction in conventional semiconductors. To investigate this question theoretically, we have developed a simplified model of polaron pairs whose central feature is competition between the usual, antiferromagnetic, virtual-hopping interaction, and the loss of carrier-magnetic ion exchange energy, by intermediate ions, when the polaron moments are antiferromagnetically aligned. The model is sufficiently simple that its partition function can be calculated in detail. With reasonable parameters, it predicts a ferromagnetic polaron-polaron interaction at low temperatures.

Bibliography

Wolff, P. A., Bhatt, R. N., & Durst, A. C. (1996). Polaron-polaron interactions in diluted magnetic semiconductors. Journal of Applied Physics, 79(8), 5196â5198.

Authors 3

P. A. Wolff (first)
R. N. Bhatt (additional)
A. C. Durst (additional)

References 9 Referenced 145

{'key': '2024020216294977700_r1'}
{'key': '2024020216294977700_r2', 'first-page': '402', 'volume': '39', 'year': '1994', 'journal-title': 'Bull. Am. Phys. Soc.'} / Bull. Am. Phys. Soc. (1994)
10.1103/PhysRevLett.48.344 / Phys. Rev. Lett. (1982)
{'key': '2024020216294977700_r4', 'first-page': '825', 'volume': '57', 'year': '1983', 'journal-title': 'Sov. Phys. JETP'} / Sov. Phys. JETP (1983)
{'key': '2024020216294977700_r5'}
{'key': '2024020216294977700_r6'}
10.1103/PhysRevB.38.10512 / Phys. Rev. B (1988)
10.1103/RevModPhys.40.684 / Rev. Mod. Phys. (1968)
{'key': '2024020216294977700_r9'}

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:50 a.m.)
Deposited	1 year, 6 months ago (Feb. 2, 2024, 12:43 p.m.)
Indexed	1 month ago (July 26, 2025, 4:52 a.m.)
Issued	29 years, 4 months ago (April 15, 1996)
Published	29 years, 4 months ago (April 15, 1996)
Published Print	29 years, 4 months ago (April 15, 1996)

Funders 0

None

BibTeX

@article{Wolff_1996, title={Polaron-polaron interactions in diluted magnetic semiconductors}, volume={79}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.361338}, DOI={10.1063/1.361338}, number={8}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Wolff, P. A. and Bhatt, R. N. and Durst, A. C.}, year={1996}, month=apr, pages={5196–5198} }

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