Perpendicular magnetic anisotropy in CoxPt1−x alloy films

Maret, M.; Cadeville, M.C.; Staiger, W.; Beaurepaire, E.; Poinsot, R.; Herr, A.

doi:10.1016/b978-0-444-82312-0.50107-9

Cited by 1 publication

(2 citation statements)

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“…Moreover the Co-Pt chemical and magnetic phase diagram has been theoretically calculated by Sanchez et al [3]. However, only recently, a new hexagonal close-packed (hcp) structure has been synthesized in (relatively) thin-film form by Harp et al [4] and Maret et al [5], through the use of MBE, i.e. simultaneous molecular beam epitaxial deposition of both Co and Pt on a crystalline substrate; Maret et al used a Ru(001) buffer.…”

Section: Introductionmentioning

confidence: 99%

“…3.2 eV) around the Fermi level. Maret et al [5] also point out a 0953-8984/96/091151+11$19.50 c 1996 IOP Publishing Ltd 1151 new hcp Co 3 Pt phase with long-range chemical ordering along the [001] growth direction as well as a strong perpendicular magnetic anisotropy along the same ('c') axis. However, the detailed crystallographic structure of the hcp phase considered is not yet fully determined: it contains alternating planes A and B such that the percentage of Pt in those planes varies as a function of the growth temperature.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The band structure of chemically ordered

Moraitis

Parlebas

Khan

1996

J. Phys.: Condens. Matter

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Owing to surface diffusion, the molecular beam epitaxy (MBE) technique has made it possible to produce new binary alloy films by coevaporation on a single-crystal substrate in an ultrahigh vacuum. In this fashion, a hexagonal close-packed (hcp) structure of the Co 3 Pt compound with ferromagnetic and chemical order has been discovered recently which was not previously known in the bulk alloy equilibrium phase diagram. Using a tight-binding linear muffin-tin orbital (TB-LMTO) method for the electronic structure of Co 3 Pt, we treat first the reference case of the fcc L1 2 phase and then the hcp phase. In this last phase we consider both the standard DO 19 structure and a modified version of it. We perform the band-structure calculation in both the paramagnetic and ferromagnetic cases, and on the basis of a total energy calculation we arrive at the conclusion that the ferromagnetic phase of the DO 19 structure is the most stable.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%