MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure

BJ Kowalski; IA Kowalik; RJ Iwanowski; E Lusakowska; M Sawicki; Janusz Sadowski; I Grzegory; S Porowski

MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure

BJ Kowalski, IA Kowalik, RJ Iwanowski, E Lusakowska, M Sawicki, Janusz Sadowski, I Grzegory, S Porowski

MAX IV Laboratory

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

Abstract

MnAs layer has been grown by means of MBE on the GaN(000 (1) under bar)-(1 x 1) surface. Spontaneous formation of MnAs grains with a diameter of 30-60 nm (as observed by atomic force microscopy) occurred for the layer thickness bigger than 7 ML. Ferromagnetic properties of the layer with Curie temperature higher than 330 K were detected by SQUID measurements. Electronic structure of the system was investigated in situ by resonant photoemission spectroscopy for MnAs layer thickness of 1, 2, and 8 ML. Density of the valence band states of MnAs and its changes due to the increase in the layer thickness were revealed.

Original language	English
Pages (from-to)	645-650
Journal	Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics
Volume	105
Issue number	6
Publication status	Published - 2004

Subject classification (UKÄ)

Natural Sciences
Physical Sciences

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Kowalski, BJ., Kowalik, IA., Iwanowski, RJ., Lusakowska, E., Sawicki, M., Sadowski, J., Grzegory, I., & Porowski, S. (2004). MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure. Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 105(6), 645-650. http://przyrbwn.icm.edu.pl/APP/ABSTR/105/a105-6-645.html

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title = "MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure",

abstract = "MnAs layer has been grown by means of MBE on the GaN(000 (1) under bar)-(1 x 1) surface. Spontaneous formation of MnAs grains with a diameter of 30-60 nm (as observed by atomic force microscopy) occurred for the layer thickness bigger than 7 ML. Ferromagnetic properties of the layer with Curie temperature higher than 330 K were detected by SQUID measurements. Electronic structure of the system was investigated in situ by resonant photoemission spectroscopy for MnAs layer thickness of 1, 2, and 8 ML. Density of the valence band states of MnAs and its changes due to the increase in the layer thickness were revealed.",

author = "BJ Kowalski and IA Kowalik and RJ Iwanowski and E Lusakowska and M Sawicki and Janusz Sadowski and I Grzegory and S Porowski",

year = "2004",

language = "English",

volume = "105",

pages = "645--650",

journal = "Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics",

issn = "0587-4246",

publisher = "Institute of Physics, Polish Academy of Sciences",

number = "6",

}

Kowalski, BJ, Kowalik, IA, Iwanowski, RJ, Lusakowska, E, Sawicki, M, Sadowski, J, Grzegory, I & Porowski, S 2004, 'MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure', Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, vol. 105, no. 6, pp. 645-650. <http://przyrbwn.icm.edu.pl/APP/ABSTR/105/a105-6-645.html>

MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure. / Kowalski, BJ; Kowalik, IA; Iwanowski, RJ et al.
In: Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, Vol. 105, No. 6, 2004, p. 645-650.

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

TY - JOUR

T1 - MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure

AU - Kowalski, BJ

AU - Kowalik, IA

AU - Iwanowski, RJ

AU - Lusakowska, E

AU - Sawicki, M

AU - Sadowski, Janusz

AU - Grzegory, I

AU - Porowski, S

PY - 2004

Y1 - 2004

N2 - MnAs layer has been grown by means of MBE on the GaN(000 (1) under bar)-(1 x 1) surface. Spontaneous formation of MnAs grains with a diameter of 30-60 nm (as observed by atomic force microscopy) occurred for the layer thickness bigger than 7 ML. Ferromagnetic properties of the layer with Curie temperature higher than 330 K were detected by SQUID measurements. Electronic structure of the system was investigated in situ by resonant photoemission spectroscopy for MnAs layer thickness of 1, 2, and 8 ML. Density of the valence band states of MnAs and its changes due to the increase in the layer thickness were revealed.

AB - MnAs layer has been grown by means of MBE on the GaN(000 (1) under bar)-(1 x 1) surface. Spontaneous formation of MnAs grains with a diameter of 30-60 nm (as observed by atomic force microscopy) occurred for the layer thickness bigger than 7 ML. Ferromagnetic properties of the layer with Curie temperature higher than 330 K were detected by SQUID measurements. Electronic structure of the system was investigated in situ by resonant photoemission spectroscopy for MnAs layer thickness of 1, 2, and 8 ML. Density of the valence band states of MnAs and its changes due to the increase in the layer thickness were revealed.

M3 - Article

SN - 0587-4246

VL - 105

SP - 645

EP - 650

JO - Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics

JF - Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics

IS - 6

ER -

MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure

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