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Phys. Rev. B 65, 012414 (2001) [3 pages]

Ferromagnetic ground state for Mn-Co surface ordered alloy on a Co(001) substrate

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B. M’Passi-Mabiala
Université Marien NGouabi, Département de Physique, Laboratoire des Materiaux et Energies, BP 69 Brazzaville, Congo
The Abdus Salam International Centre for Theoretical Physics, strada costiera 11, 34100 Trieste, Italy

S. Meza-Aguilar
Escuela de Ciencias Fisico Matemáticas, Universidad Autónoma de Sinaloa, Bldv. de las Americas y Universitarios, Ciudad Universitaria, Culiacán Sinaloa, CP 80010, México
The Abdus Salam International Centre for Theoretical Physics, strada costiera 11, 34100 Trieste, Italy

C. Demangeat
Institut de Physique et Chimie des Matériaux de Strasbourg, 23 rue du Loess F-63037 Strasbourg, France

Received 26 July 2001; published 7 December 2001

Recent low-energy electron diffraction experiments concerning submonolayer Mn coverage on Co/Cu(001) substrates displayed a well-defined Mn0.5Co0.5 surface-ordered alloy. Through the magneto-optic Kerr effect and x-ray magnetic circular dichroism a ferromagnetic coupling between Mn and Co was obtained. Ab initio density functional theory within a generalized gradient approximation is able to explain these results.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.65.012414
DOI:
10.1103/PhysRevB.65.012414
PACS:
75.70.-i, 68.47.De, 82.45.Mp
 
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