The magnetic structure of holmium/erbium superlattices

D.F. McMorrow; J.A. Simpson; R.A. Cowley; D.A. Jehan; R.C.C. Ward; M.R. Wells; T.R. Thurston; D. Gibbs

doi:10.1016/0304-8853(94)01312-8

The magnetic structure of holmium/erbium superlattices

D.F. McMorrow
, J.A. Simpson
, R.A. Cowley
, D.A. Jehan
, R.C.C. Ward
, M.R. Wells
, T.R. Thurston
, D. Gibbs

Clarendon Laboratory
Brookhaven National Laboratory

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The effect of competing crystal-field anisotropies on magnetic order has been investigated in a series of Ho/Er superlattices using neutron and resonant X-ray magnetic diffraction techniques. The neutron diffraction reveals that for temperatures in the interval T_N(Er)≤ T ≤ T_N(Ho) the Ho basal-plane order propagates coherently through the paramagnetic Er, and that below T_N(Er) the longitudinal component of the Er moments fail to order across the Ho block. The magnetic superlattice peaks observed in the X-ray scattering display an anomalous energy dependence: a sharp resonance is found at L_III(Ho), with no resonance visible at L_III(Er). These results are discussed with reference to models of exchange in metallic superlattices.

Original language	English
Journal	Journal of Magnetism and Magnetic Materials
Volume	140-144
Issue number	PART 2
Pages (from-to)	779-782
ISSN	0304-8853
DOIs	https://doi.org/10.1016/0304-8853(94)01312-8
Publication status	Published - 1995

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title = "The magnetic structure of holmium/erbium superlattices",

abstract = "The effect of competing crystal-field anisotropies on magnetic order has been investigated in a series of Ho/Er superlattices using neutron and resonant X-ray magnetic diffraction techniques. The neutron diffraction reveals that for temperatures in the interval TN(Er)≤ T ≤ TN(Ho) the Ho basal-plane order propagates coherently through the paramagnetic Er, and that below TN(Er) the longitudinal component of the Er moments fail to order across the Ho block. The magnetic superlattice peaks observed in the X-ray scattering display an anomalous energy dependence: a sharp resonance is found at LIII(Ho), with no resonance visible at LIII(Er). These results are discussed with reference to models of exchange in metallic superlattices. ",

keywords = "Materialer med s{\ae}rlige fysiske og kemiske egenskaber",

author = "D.F. McMorrow and J.A. Simpson and R.A. Cowley and D.A. Jehan and R.C.C. Ward and M.R. Wells and T.R. Thurston and D. Gibbs",

year = "1995",

doi = "10.1016/0304-8853(94)01312-8",

language = "English",

volume = "140-144",

pages = "779--782",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

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TY - JOUR

T1 - The magnetic structure of holmium/erbium superlattices

AU - McMorrow, D.F.

AU - Simpson, J.A.

AU - Cowley, R.A.

AU - Jehan, D.A.

AU - Ward, R.C.C.

AU - Wells, M.R.

AU - Thurston, T.R.

AU - Gibbs, D.

PY - 1995

Y1 - 1995

N2 - The effect of competing crystal-field anisotropies on magnetic order has been investigated in a series of Ho/Er superlattices using neutron and resonant X-ray magnetic diffraction techniques. The neutron diffraction reveals that for temperatures in the interval TN(Er)≤ T ≤ TN(Ho) the Ho basal-plane order propagates coherently through the paramagnetic Er, and that below TN(Er) the longitudinal component of the Er moments fail to order across the Ho block. The magnetic superlattice peaks observed in the X-ray scattering display an anomalous energy dependence: a sharp resonance is found at LIII(Ho), with no resonance visible at LIII(Er). These results are discussed with reference to models of exchange in metallic superlattices.

AB - The effect of competing crystal-field anisotropies on magnetic order has been investigated in a series of Ho/Er superlattices using neutron and resonant X-ray magnetic diffraction techniques. The neutron diffraction reveals that for temperatures in the interval TN(Er)≤ T ≤ TN(Ho) the Ho basal-plane order propagates coherently through the paramagnetic Er, and that below TN(Er) the longitudinal component of the Er moments fail to order across the Ho block. The magnetic superlattice peaks observed in the X-ray scattering display an anomalous energy dependence: a sharp resonance is found at LIII(Ho), with no resonance visible at LIII(Er). These results are discussed with reference to models of exchange in metallic superlattices.

KW - Materialer med særlige fysiske og kemiske egenskaber

U2 - 10.1016/0304-8853(94)01312-8

DO - 10.1016/0304-8853(94)01312-8

M3 - Journal article

SN - 0304-8853

VL - 140-144

SP - 779

EP - 782

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - PART 2

ER -

The magnetic structure of holmium/erbium superlattices

Abstract

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