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Pinhole defects in Fe/Cr trilayers. / Uzdin, V.M.; Demangeat, C.

In: Journal of Magnetism and Magnetic Materials, Vol. 165, 1997, p. 458-461.

Research output: Contribution to journal › Article

Harvard

Uzdin, VM & Demangeat, C 1997, 'Pinhole defects in Fe/Cr trilayers', Journal of Magnetism and Magnetic Materials, vol. 165, pp. 458-461. <http://elibrary.ru/item.asp?id=11816856>

APA

Uzdin, V. M., & Demangeat, C. (1997). Pinhole defects in Fe/Cr trilayers. Journal of Magnetism and Magnetic Materials, 165, 458-461. http://elibrary.ru/item.asp?id=11816856

Vancouver

Uzdin VM, Demangeat C. Pinhole defects in Fe/Cr trilayers. Journal of Magnetism and Magnetic Materials. 1997;165:458-461.

Author

Uzdin, V.M. ; Demangeat, C. / Pinhole defects in Fe/Cr trilayers. In: Journal of Magnetism and Magnetic Materials. 1997 ; Vol. 165. pp. 458-461.

BibTeX

@article{9360e5521c9e4e3fbd130dbc90a33286,
title = "Pinhole defects in Fe/Cr trilayers",
abstract = "The distribution of magnetic moments in Fe/Cr/Fe sandwiches with pinhole defects has been studied using a model Hamiltonian approach. Self-consistent calculations were performed in the Hartree-Fock approximation for ideal smooth and rough interfaces generated by a special algorithm. For a sandwich structure of Fe antiferromagnetically coupled across a Cr spacer, the pinhole defects induce a non-zero magnetization at zero external magnetic field. The value of the total magnetic moment appears, however, to be relatively small due to the effects of frustration which take place in the system. Fe atoms inside pinholes show different magnetic moments dependent on the number of Fe atoms among its nearest neighbours. The atoms at the border of the pinholes have magnetic moment smaller than the bulk value whereas moments of inner atoms are higher than in the bulk. The role of interface roughness and pinhole defects on the stability of these magnetic states has been investigated trough total-energy calculations.",
author = "V.M. Uzdin and C. Demangeat",
year = "1997",
language = "English",
volume = "165",
pages = "458--461",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Pinhole defects in Fe/Cr trilayers

AU - Uzdin, V.M.

AU - Demangeat, C.

PY - 1997

Y1 - 1997

N2 - The distribution of magnetic moments in Fe/Cr/Fe sandwiches with pinhole defects has been studied using a model Hamiltonian approach. Self-consistent calculations were performed in the Hartree-Fock approximation for ideal smooth and rough interfaces generated by a special algorithm. For a sandwich structure of Fe antiferromagnetically coupled across a Cr spacer, the pinhole defects induce a non-zero magnetization at zero external magnetic field. The value of the total magnetic moment appears, however, to be relatively small due to the effects of frustration which take place in the system. Fe atoms inside pinholes show different magnetic moments dependent on the number of Fe atoms among its nearest neighbours. The atoms at the border of the pinholes have magnetic moment smaller than the bulk value whereas moments of inner atoms are higher than in the bulk. The role of interface roughness and pinhole defects on the stability of these magnetic states has been investigated trough total-energy calculations.

AB - The distribution of magnetic moments in Fe/Cr/Fe sandwiches with pinhole defects has been studied using a model Hamiltonian approach. Self-consistent calculations were performed in the Hartree-Fock approximation for ideal smooth and rough interfaces generated by a special algorithm. For a sandwich structure of Fe antiferromagnetically coupled across a Cr spacer, the pinhole defects induce a non-zero magnetization at zero external magnetic field. The value of the total magnetic moment appears, however, to be relatively small due to the effects of frustration which take place in the system. Fe atoms inside pinholes show different magnetic moments dependent on the number of Fe atoms among its nearest neighbours. The atoms at the border of the pinholes have magnetic moment smaller than the bulk value whereas moments of inner atoms are higher than in the bulk. The role of interface roughness and pinhole defects on the stability of these magnetic states has been investigated trough total-energy calculations.

M3 - Article

VL - 165

SP - 458

EP - 461

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -

ID: 5033995