Publication:
Incommensurate and commensurate antiferromagnetic spin fluctuations in cr and cr alloys from ab initio dynamical spin susceptibility calculations

Issued Date

1999-01-01

Resource Type

Article

ISSN

10797114
00319007

DOI

10.1103/PhysRevLett.82.3340

Other identifier(s)

2-s2.0-0000804940

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Physical Review Letters. Vol.82, No.16 (1999), 3340-3343

Suggested Citation

J. B. Staunton, J. Poulter, B. Ginatempo, E. Bruno, D. D. Johnson Incommensurate and commensurate antiferromagnetic spin fluctuations in cr and cr alloys from ab initio dynamical spin susceptibility calculations. Physical Review Letters. Vol.82, No.16 (1999), 3340-3343. doi:10.1103/PhysRevLett.82.3340 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/25786

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Title

Incommensurate and commensurate antiferromagnetic spin fluctuations in cr and cr alloys from ab initio dynamical spin susceptibility calculations

Author(s)

J. B. Staunton
 J. Poulter
 B. Ginatempo
 E. Bruno
 D. D. Johnson

Other Contributor(s)

The University of Warwick
 Mahidol University
 Universita degli Studi di Messina
 University of Illinois

Abstract

A scheme for making ab initio calculations of the dynamic paramagnetic spin susceptibilities of solids at finite temperatures is described. It is based on time-dependent density functional theory and employs an electronic multiple scattering formalism. Incommensurate and commensurate antiferromagnetic spin fluctuations in paramagnetic Cr and compositionally disordered Cr95V5and Cr95Re5alloys are studied together with the connection with the nesting of their Fermi surfaces. We find that the spin fluctuations can be described rather simply in terms of an overdamped oscillator model. Good agreement with inelastic neutron scattering data is obtained. © 1999 The American Physical Society.

Keyword(s)

Physics and Astronomy

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URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/25786

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Scopus 1991-2000