Magnetic circular dichroism studies of carrier-induced ferromagnetism in (Ga1-xMnx)as

B. Beschoten; P. A. Crowell; I. Malajovich; D. D. Awschalom; F. Matsukura; A. Shen; H. Ohno

doi:10.1103/PhysRevLett.83.3073

Magnetic circular dichroism studies of carrier-induced ferromagnetism in (Ga_1-xMn_x)as

B. Beschoten
, P. A. Crowell
, I. Malajovich
, D. D. Awschalom
, F. Matsukura
, A. Shen
, H. Ohno

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

280 Scopus citations

Abstract

Magnetic circular dichroism is used to investigate the evolution of ferromagnetism in the p-type magnetic semiconductor (Ga_1-xMn_x)As. Local Mn moments and holes produce two spectroscopically distinct contributions, whose properties reveal an antiferromagnetic Mn-hole alignment in the ferromagnetic state. These components are present in both metallic and insulating samples with different temperature and field dependences, suggesting that the holes play a more active role in mediating the ferromagnetic exchange than in traditional RKKY systems. 1999

Original language	English (US)
Pages (from-to)	3074-3076
Number of pages	3
Journal	Physical review letters
Volume	83
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.83.3073
State	Published - Jan 1 1999

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10.1103/PhysRevLett.83.3073

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abstract = "Magnetic circular dichroism is used to investigate the evolution of ferromagnetism in the p-type magnetic semiconductor (Ga1-xMnx)As. Local Mn moments and holes produce two spectroscopically distinct contributions, whose properties reveal an antiferromagnetic Mn-hole alignment in the ferromagnetic state. These components are present in both metallic and insulating samples with different temperature and field dependences, suggesting that the holes play a more active role in mediating the ferromagnetic exchange than in traditional RKKY systems. 1999",

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AU - Beschoten, B.

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AU - Malajovich, I.

AU - Awschalom, D. D.

AU - Matsukura, F.

AU - Shen, A.

AU - Ohno, H.

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N2 - Magnetic circular dichroism is used to investigate the evolution of ferromagnetism in the p-type magnetic semiconductor (Ga1-xMnx)As. Local Mn moments and holes produce two spectroscopically distinct contributions, whose properties reveal an antiferromagnetic Mn-hole alignment in the ferromagnetic state. These components are present in both metallic and insulating samples with different temperature and field dependences, suggesting that the holes play a more active role in mediating the ferromagnetic exchange than in traditional RKKY systems. 1999

AB - Magnetic circular dichroism is used to investigate the evolution of ferromagnetism in the p-type magnetic semiconductor (Ga1-xMnx)As. Local Mn moments and holes produce two spectroscopically distinct contributions, whose properties reveal an antiferromagnetic Mn-hole alignment in the ferromagnetic state. These components are present in both metallic and insulating samples with different temperature and field dependences, suggesting that the holes play a more active role in mediating the ferromagnetic exchange than in traditional RKKY systems. 1999

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Magnetic circular dichroism studies of carrier-induced ferromagnetism in (Ga_1-xMn_x)as

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