Spin dependent EXAFS in pure metals and garnets

M. Knülle; D. Ahlers; G. Schütz

doi:10.1016/0038-1098(95)00056-9

Spin dependent EXAFS in pure metals and garnets

M. Knülle, D. Ahlers, G. Schütz

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26 Scopus citations

Abstract

Magnetic EXAFS are studied using circularly polarized synchrotron radiation in the energy range of 6000-9000eV at the L-edges of pure Gd metal, the L_2,3-edges of Eu in Eu₃Fe₅O₁₂ and the K-edges of Fe, Co and Ni metal. On the basis of a two-step model the dichroic absorption effects are described in terms of an additive contribution to the backscattering amplitude caused by the exchange interaction, which is directly correlated to the spin-moment of the neighboring atom. The damped low-frequent background found in the dichroic L_2,3-spectra of Gd and Tb metal is interpreted as an atomic x-ray fine structure of strong magnetic character.

Original language	English
Pages (from-to)	267-273
Number of pages	7
Journal	Solid State Communications
Volume	94
Issue number	4
DOIs	https://doi.org/10.1016/0038-1098(95)00056-9
State	Published - Apr 1995
Externally published	Yes

Keywords

A. magnetically ordered materials
C. EXAFS
D. spin dynamics
E. X-ray spectroscopy

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10.1016/0038-1098(95)00056-9

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title = "Spin dependent EXAFS in pure metals and garnets",

abstract = "Magnetic EXAFS are studied using circularly polarized synchrotron radiation in the energy range of 6000-9000eV at the L-edges of pure Gd metal, the L2,3-edges of Eu in Eu3Fe5O12 and the K-edges of Fe, Co and Ni metal. On the basis of a two-step model the dichroic absorption effects are described in terms of an additive contribution to the backscattering amplitude caused by the exchange interaction, which is directly correlated to the spin-moment of the neighboring atom. The damped low-frequent background found in the dichroic L2,3-spectra of Gd and Tb metal is interpreted as an atomic x-ray fine structure of strong magnetic character.",

keywords = "A. magnetically ordered materials, C. EXAFS, D. spin dynamics, E. X-ray spectroscopy",

author = "M. Kn{\"u}lle and D. Ahlers and G. Sch{\"u}tz",

year = "1995",

month = apr,

doi = "10.1016/0038-1098(95)00056-9",

language = "English",

volume = "94",

pages = "267--273",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "4",

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TY - JOUR

T1 - Spin dependent EXAFS in pure metals and garnets

AU - Knülle, M.

AU - Ahlers, D.

AU - Schütz, G.

PY - 1995/4

Y1 - 1995/4

N2 - Magnetic EXAFS are studied using circularly polarized synchrotron radiation in the energy range of 6000-9000eV at the L-edges of pure Gd metal, the L2,3-edges of Eu in Eu3Fe5O12 and the K-edges of Fe, Co and Ni metal. On the basis of a two-step model the dichroic absorption effects are described in terms of an additive contribution to the backscattering amplitude caused by the exchange interaction, which is directly correlated to the spin-moment of the neighboring atom. The damped low-frequent background found in the dichroic L2,3-spectra of Gd and Tb metal is interpreted as an atomic x-ray fine structure of strong magnetic character.

AB - Magnetic EXAFS are studied using circularly polarized synchrotron radiation in the energy range of 6000-9000eV at the L-edges of pure Gd metal, the L2,3-edges of Eu in Eu3Fe5O12 and the K-edges of Fe, Co and Ni metal. On the basis of a two-step model the dichroic absorption effects are described in terms of an additive contribution to the backscattering amplitude caused by the exchange interaction, which is directly correlated to the spin-moment of the neighboring atom. The damped low-frequent background found in the dichroic L2,3-spectra of Gd and Tb metal is interpreted as an atomic x-ray fine structure of strong magnetic character.

KW - A. magnetically ordered materials

KW - C. EXAFS

KW - D. spin dynamics

KW - E. X-ray spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=0029290077&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(95)00056-9

DO - 10.1016/0038-1098(95)00056-9

M3 - Article

AN - SCOPUS:0029290077

SN - 0038-1098

VL - 94

SP - 267

EP - 273

JO - Solid State Communications

JF - Solid State Communications

IS - 4

ER -

Spin dependent EXAFS in pure metals and garnets

Abstract

Keywords

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