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Peculiar Properties of Ultrathin fcc Iron Films Epitaxially Grown on Cu(001)

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Wojnecki R., Sukiennicki A.

Acta Physica Polonica A

2000

vol. 97

issue 4

705-712

Very peculiar electronic structure and local magnetic moment distribution for fcc Fe ultrathin films of 1, 2, 3, and 4 monolayers of thickness, epitaxially grown on Cu(001) substrates and covered with some layers of Cu, are calculated. The lattice constant of the Fe film is assumed to be equal to that of Cu, homogeneously in the whole film. The competition between the surface ferromagnetism and bulk antiferromagnetism results in ferromagnetism of 2-monolayer film, asymmetric solution for 3-monolayer film and antisymmetric solution for 4-monolayer film.

On Electronic Structure and Magnetic Behaviour of FCC Iron Films Epitaxially Grown on Cu(001)

100%

Wojnecki R., Sukiennicki A.

Acta Physica Polonica A

1998

vol. 93

issue 5-6

737-743

Electronic structure and local magnetic moments for the epitaxially grown fcc Fe films included between the Cu(001) substrate and Cu(001) covering layers are calculated. The lattice constant of the Fe film is assumed to be equal to that of Cu homogeneously in the whole film. Interface parts of the Fe film are found to be ordered ferromagnetically, while inner part of the Fe film is obtained as ordered layer-by-layer antiferromagnetically for odd number of layers. For even number of Fe layers the most favourable configuration includes antiferromagnetism of inner layers with two middle layers coupled ferromagnetically.

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2 Acta Physica Polonica A

1 2000

1 1998

2 Sukiennicki A.

2 Wojnecki R.

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Peculiar Properties of Ultrathin fcc Iron Films Epitaxially Grown on Cu(001)

On Electronic Structure and Magnetic Behaviour of FCC Iron Films Epitaxially Grown on Cu(001)