Grain-boundary-induced spin disorder in nanocrystalline gadolinium

被引：14

作者：

Doebrich, F. ^{[1
]}

Elmas, M. ^{[1
]}

Ferdinand, A. ^{[1
]}

Markmann, J. ^{[1
]}

Sharp, M. ^{[2
]}

Eckerlebe, H. ^{[2
]}

Kohlbrecher, J. ^{[3
]}

Birringer, R. ^{[1
]}

Michels, A. ^{[1
]}

机构：

[1] Univ Saarland, D-66041 Saarbrucken, Germany

[2] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany

[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 15期

关键词：

NEUTRON-DIFFRACTION; CURIE-TEMPERATURE; GD; DISTRIBUTIONS; SCATTERING; MAGNETISM;

D O I：

10.1088/0953-8984/21/15/156003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Based on experimental magnetic-field-dependent neutron scattering data, we have calculated the autocorrelation function of the spin misalignment of nanocrystalline (160)gadolinium. The analysis suggests the existence of two characteristic length scales in the spin system: the smaller one is about 5 nm and is attributed to the defect cores of the grain boundaries, whereas the larger length scale is of the order of the average crystallite size D = 21 nm and presumably describes the response of the magnetization to the magnetic anisotropy field of the individual crystallites.

引用

页数：5

共 35 条

[1] Colloquium:: Opportunities in nanomagnetism
Bader, SD
[J]. REVIEWS OF MODERN PHYSICS, 2006, 78 (01) : 1 - 15
[2] Effect of the temperature history on the magnetism of (110) europium films
Bataille, A. M.
Dumesnil, K.
Gukasov, A.
Dufour, C.
[J]. JOURNAL OF APPLIED PHYSICS, 2009, 105 (07)
[3] NEUTRON DIFFRACTION STUDY OF MAGNETIC BEHAVIOR OF GADOLINIUM
CABLE, JW
WOLLAN, EA
[J]. PHYSICAL REVIEW, 1968, 165 (02): : 733 - &
[4] MAGNETIC SHORT-RANGE ORDER IN GD
CHILD, HR
[J]. PHYSICAL REVIEW B, 1978, 18 (03): : 1247 - 1252
[5] Property variation with shape in magnetic nanoelements
Cowburn, RP
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2000, 33 (01) : R1 - R16
[6] THICKNESS-DEPENDENT CURIE-TEMPERATURE OF GD(0001)/W(110) AND ITS DEPENDENCE ON THE GROWTH-CONDITIONS
FARLE, M
BABERSCHKE, K
STETTER, U
ASPELMEIER, A
GERHARDTER, F
[J]. PHYSICAL REVIEW B, 1993, 47 (17): : 11571 - 11574
[7] INTERFACIAL BOUNDARY AND SIZE EFFECTS AT CRITICAL POINTS
FISHER, ME
FERDINAND, AE
[J]. PHYSICAL REVIEW LETTERS, 1967, 19 (04) : 169 - +
[8] Morphology and magnetic properties of submonolayer Gd films
Gajdzik, M
Trappmann, T
Surgers, C
von Lohneysen, H
[J]. PHYSICAL REVIEW B, 1998, 57 (06): : 3525 - 3530
[9] Field induced chirality in the helix structure of Dy/Y multilayer films and experimental evidence for Dzyaloshinskii-Moriya interaction on the interfaces
Grigoriev, S. V.
Chetverikov, Yu. O.
Lott, D.
Schreyer, A.
[J]. PHYSICAL REVIEW LETTERS, 2008, 100 (19)
[10] Annealing-induced extension of the antiferromagnetic phase in epitaxial terbium metal films
Heigl, F
Prieto, JE
Krupin, O
Starke, K
Kaindl, G
Bode, M
[J]. PHYSICAL REVIEW B, 2005, 72 (03)

← 1 2 3 4 →