Magnetic moment of mn in the ferromagnetic semiconductor (Ga0.98Mn0.02)As

H. Ohldag; V. Solinus; F. U. Hillebrecht; J. B. Goedkoop; M. Finazzi; F. Matsukura; H. Ohno

doi:10.1063/1.126519

Magnetic moment of mn in the ferromagnetic semiconductor (Ga_0.98Mn_0.02)As

H. Ohldag, V. Solinus, F. U. Hillebrecht, J. B. Goedkoop, M. Finazzi, F. Matsukura, H. Ohno

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Abstract

We have studied the quasibinary ferromagnetic semiconductor (Ga_0.98Mn_0.02)As by magnetic circular dichroism in x-ray absorption. We find a richly structured Mn absorption spectrum typical for localized 3d electrons. An analysis of the magnetization-averaged and dichroism line shapes shows a local Mn moment of 4.6μ_B, which is close to the Hund's rule moment for the half-filled 3d shell. The magnitude of the dichroism reveals that only about 1/7 of the Mn atoms participate in the ferromagnetic order. Our experiment does not show a distinction between the ferro- and paramagnetic Mn atoms.

Original language	English
Pages (from-to)	2928-2930
Number of pages	3
Journal	Applied Physics Letters
Volume	76
Issue number	20
DOIs	https://doi.org/10.1063/1.126519
Publication status	Published - 2000 May 15

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abstract = "We have studied the quasibinary ferromagnetic semiconductor (Ga0.98Mn0.02)As by magnetic circular dichroism in x-ray absorption. We find a richly structured Mn absorption spectrum typical for localized 3d electrons. An analysis of the magnetization-averaged and dichroism line shapes shows a local Mn moment of 4.6μB, which is close to the Hund's rule moment for the half-filled 3d shell. The magnitude of the dichroism reveals that only about 1/7 of the Mn atoms participate in the ferromagnetic order. Our experiment does not show a distinction between the ferro- and paramagnetic Mn atoms.",

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T1 - Magnetic moment of mn in the ferromagnetic semiconductor (Ga0.98Mn0.02)As

AU - Ohldag, H.

AU - Solinus, V.

AU - Hillebrecht, F. U.

AU - Goedkoop, J. B.

AU - Finazzi, M.

AU - Matsukura, F.

AU - Ohno, H.

PY - 2000/5/15

Y1 - 2000/5/15

N2 - We have studied the quasibinary ferromagnetic semiconductor (Ga0.98Mn0.02)As by magnetic circular dichroism in x-ray absorption. We find a richly structured Mn absorption spectrum typical for localized 3d electrons. An analysis of the magnetization-averaged and dichroism line shapes shows a local Mn moment of 4.6μB, which is close to the Hund's rule moment for the half-filled 3d shell. The magnitude of the dichroism reveals that only about 1/7 of the Mn atoms participate in the ferromagnetic order. Our experiment does not show a distinction between the ferro- and paramagnetic Mn atoms.

AB - We have studied the quasibinary ferromagnetic semiconductor (Ga0.98Mn0.02)As by magnetic circular dichroism in x-ray absorption. We find a richly structured Mn absorption spectrum typical for localized 3d electrons. An analysis of the magnetization-averaged and dichroism line shapes shows a local Mn moment of 4.6μB, which is close to the Hund's rule moment for the half-filled 3d shell. The magnitude of the dichroism reveals that only about 1/7 of the Mn atoms participate in the ferromagnetic order. Our experiment does not show a distinction between the ferro- and paramagnetic Mn atoms.

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Magnetic moment of mn in the ferromagnetic semiconductor (Ga_0.98Mn_0.02)As

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