Magnetic Properties of Tetragonally Distorted Fe3Pt and the Hybrid Structure Fe3Pt/Fe

Akimasa Sakuma

doi:10.1143/JPSJ.64.4317

Magnetic Properties of Tetragonally Distorted Fe₃Pt and the Hybrid Structure Fe₃Pt/Fe

Akimasa Sakuma

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

4 Citations (Scopus)

Abstract

To investigate the magnetic performance of a hybrid structure of transition metals, we consider the Fe₃ Pt/Fe system and examine the effects both of the tetragonal distortion of Ll₂ type Fe₃ Pt and the hybridization with bcc-Fe on the magnetic properties, using LMTO-ASA method in the framework of LSD. The magnetic moment of Fe₃ Pt has a maximum stationary value of 8.85 µ_B/cell at [formula omitted]. The hypothetical structure of Fe₂₀ Pt₄ is supposed by combining Fe₃ Pt of [formula omitted] and bcc-Fe lattice. It is predicted that the magnetization reaches 2.27 T with the magnetic anisotropy constant of 11 × 10⁵ J/m³. With using the coherent rotation model for magnetization reversal process, we get maximum energy product (BH)_max = 10.2 MJ/m³.

Original language	English
Pages (from-to)	4317-4321
Number of pages	5
Journal	journal of the physical society of japan
Volume	64
Issue number	11
DOIs	https://doi.org/10.1143/JPSJ.64.4317
Publication status	Published - 1995 Nov
Externally published	Yes

Keywords

Fe Pt
LSD functional approximation
electronic structure
magnetic moment
magnetocrystalline anisotropy energy
the LMTO method

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.64.4317

Cite this

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title = "Magnetic Properties of Tetragonally Distorted Fe3Pt and the Hybrid Structure Fe3Pt/Fe",

abstract = "To investigate the magnetic performance of a hybrid structure of transition metals, we consider the Fe3 Pt/Fe system and examine the effects both of the tetragonal distortion of Ll2 type Fe3 Pt and the hybridization with bcc-Fe on the magnetic properties, using LMTO-ASA method in the framework of LSD. The magnetic moment of Fe3 Pt has a maximum stationary value of 8.85 µB/cell at [formula omitted]. The hypothetical structure of Fe20 Pt4 is supposed by combining Fe3 Pt of [formula omitted] and bcc-Fe lattice. It is predicted that the magnetization reaches 2.27 T with the magnetic anisotropy constant of 11 × 105 J/m3. With using the coherent rotation model for magnetization reversal process, we get maximum energy product (BH)max = 10.2 MJ/m3.",

keywords = "Fe Pt, LSD functional approximation, electronic structure, magnetic moment, magnetocrystalline anisotropy energy, the LMTO method",

author = "Akimasa Sakuma",

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T1 - Magnetic Properties of Tetragonally Distorted Fe3Pt and the Hybrid Structure Fe3Pt/Fe

AU - Sakuma, Akimasa

PY - 1995/11

Y1 - 1995/11

N2 - To investigate the magnetic performance of a hybrid structure of transition metals, we consider the Fe3 Pt/Fe system and examine the effects both of the tetragonal distortion of Ll2 type Fe3 Pt and the hybridization with bcc-Fe on the magnetic properties, using LMTO-ASA method in the framework of LSD. The magnetic moment of Fe3 Pt has a maximum stationary value of 8.85 µB/cell at [formula omitted]. The hypothetical structure of Fe20 Pt4 is supposed by combining Fe3 Pt of [formula omitted] and bcc-Fe lattice. It is predicted that the magnetization reaches 2.27 T with the magnetic anisotropy constant of 11 × 105 J/m3. With using the coherent rotation model for magnetization reversal process, we get maximum energy product (BH)max = 10.2 MJ/m3.

AB - To investigate the magnetic performance of a hybrid structure of transition metals, we consider the Fe3 Pt/Fe system and examine the effects both of the tetragonal distortion of Ll2 type Fe3 Pt and the hybridization with bcc-Fe on the magnetic properties, using LMTO-ASA method in the framework of LSD. The magnetic moment of Fe3 Pt has a maximum stationary value of 8.85 µB/cell at [formula omitted]. The hypothetical structure of Fe20 Pt4 is supposed by combining Fe3 Pt of [formula omitted] and bcc-Fe lattice. It is predicted that the magnetization reaches 2.27 T with the magnetic anisotropy constant of 11 × 105 J/m3. With using the coherent rotation model for magnetization reversal process, we get maximum energy product (BH)max = 10.2 MJ/m3.

KW - Fe Pt

KW - LSD functional approximation

KW - electronic structure

KW - magnetic moment

KW - magnetocrystalline anisotropy energy

KW - the LMTO method

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