DOI: 10.1063/1.1316775. (Ga,Mn)As as a digital ferromagnetic heterostructure

(Ga,Mn)As as a digital ferromagnetic heterostructure

10.1063/1.1316775

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

(Ga,Mn)As digital ferromagnetic heterostructures are grown by incorporating submonolayer planes of MnAs into GaAs using molecular beam epitaxy. Structural and magnetic measurements indicate single-crystalline superlattice structure and ferromagnetic order with Curie temperatures (TC) up to 50 K. By varying the spacing between neighboring Mn layers, we observe that TC initially decreases with increasing spacer thickness, followed by a regime with weak dependence on the spacer thickness. The persistence of ferromagnetism for interlayer spacings of at least 200 ML (∼560 Å) suggests that the individual Mn layers are ferromagnetic.

Bibliography

Kawakami, R. K., Johnston-Halperin, E., Chen, L. F., Hanson, M., GuÃ©bels, N., Speck, J. S., Gossard, A. C., & Awschalom, D. D. (2000). (Ga,Mn)As as a digital ferromagnetic heterostructure. Applied Physics Letters, 77(15), 2379â2381.

Authors 8

R. K. Kawakami (first)
E. Johnston-Halperin (additional)
L. F. Chen (additional)
M. Hanson (additional)
N. Guébels (additional)
J. S. Speck (additional)
A. C. Gossard (additional)
D. D. Awschalom (additional)

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{'key': '2024020318525198800_r6'}
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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:41 a.m.)
Deposited	1 year, 7 months ago (Feb. 3, 2024, 1:53 p.m.)
Indexed	1 month, 1 week ago (July 28, 2025, 5:33 p.m.)
Issued	24 years, 10 months ago (Oct. 9, 2000)
Published	24 years, 10 months ago (Oct. 9, 2000)
Published Print	24 years, 10 months ago (Oct. 9, 2000)

Funders 0

None

BibTeX

@article{Kawakami_2000, title={(Ga,Mn)As as a digital ferromagnetic heterostructure}, volume={77}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1316775}, DOI={10.1063/1.1316775}, number={15}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Kawakami, R. K. and Johnston-Halperin, E. and Chen, L. F. and Hanson, M. and Guébels, N. and Speck, J. S. and Gossard, A. C. and Awschalom, D. D.}, year={2000}, month=oct, pages={2379–2381} }

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