The magnetic structure and spin-reorientation of ErGa

J. M. Cadogan; D. H. Ryan; R. A. Susilo; S. Muñoz Pérez; R. Cobas; N. R. Lee-Hone; B. R. Hansen; M. Avdeev

doi:10.1107/S205252062400862X

The magnetic structure and spin-reorientation of ErGa

J. M. Cadogan^*
, D. H. Ryan
, R. A. Susilo
, S. Muñoz Pérez
, R. Cobas
, N. R. Lee-Hone
, B. R. Hansen
, M. Avdeev

^*Corresponding author for this work

Department of Physics

University of New South Wales
McGill University
Pohang University of Science and Technology
Australian Nuclear Science and Technology Organisation

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

Abstract

The magnetic structure of the intermetallic compound ErGa has been determined using high-resolution neutron powder diffraction. This compound crystallizes in the orthorhombic (Cmcm, No. 63) CrB-type structure and orders ferromagnetically at 32 (2) K, with the Er moments initially aligned along the b axis. Upon cooling below 16 K, the Er magnetic moments cant away from the b axis towards the c axis. At 3 K, the Er moment is 8.7 (3) μ_B and the Er magnetic moments point in the direction 31 (3)^⃘ away from the crystallographic b axis, within the bc plane.¹⁶⁶Er Mössbauer spectroscopy work supports this structure and shows clear signals of the spin-reorientation in both the magnetic and electric quadrupole hyperfine interactions.

Original language	English
Journal	Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
Volume	80
Pages (from-to)	443-450
ISSN	2052-5192
DOIs	https://doi.org/10.1107/S205252062400862X
Publication status	Published - 2024

Keywords

Magnetic structures
Mössbauer spectroscopy
Neutron diffraction
Rare-earth intermetallics

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title = "The magnetic structure and spin-reorientation of ErGa",

abstract = "The magnetic structure of the intermetallic compound ErGa has been determined using high-resolution neutron powder diffraction. This compound crystallizes in the orthorhombic (Cmcm, No. 63) CrB-type structure and orders ferromagnetically at 32 (2) K, with the Er moments initially aligned along the b axis. Upon cooling below 16 K, the Er magnetic moments cant away from the b axis towards the c axis. At 3 K, the Er moment is 8.7 (3) μB and the Er magnetic moments point in the direction 31 (3)⃘ away from the crystallographic b axis, within the bc plane.166Er M{\"o}ssbauer spectroscopy work supports this structure and shows clear signals of the spin-reorientation in both the magnetic and electric quadrupole hyperfine interactions.",

keywords = "Magnetic structures, M{\"o}ssbauer spectroscopy, Neutron diffraction, Rare-earth intermetallics",

author = "Cadogan, \{J. M.\} and Ryan, \{D. H.\} and Susilo, \{R. A.\} and P{\'e}rez, \{S. Mu{\~n}oz\} and R. Cobas and Lee-Hone, \{N. R.\} and Hansen, \{B. R.\} and M. Avdeev",

year = "2024",

doi = "10.1107/S205252062400862X",

language = "English",

volume = "80",

pages = "443--450",

journal = "Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials",

issn = "2052-5192",

publisher = "John Wiley \& Sons Inc.",

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TY - JOUR

T1 - The magnetic structure and spin-reorientation of ErGa

AU - Cadogan, J. M.

AU - Ryan, D. H.

AU - Susilo, R. A.

AU - Pérez, S. Muñoz

AU - Cobas, R.

AU - Lee-Hone, N. R.

AU - Hansen, B. R.

AU - Avdeev, M.

PY - 2024

Y1 - 2024

N2 - The magnetic structure of the intermetallic compound ErGa has been determined using high-resolution neutron powder diffraction. This compound crystallizes in the orthorhombic (Cmcm, No. 63) CrB-type structure and orders ferromagnetically at 32 (2) K, with the Er moments initially aligned along the b axis. Upon cooling below 16 K, the Er magnetic moments cant away from the b axis towards the c axis. At 3 K, the Er moment is 8.7 (3) μB and the Er magnetic moments point in the direction 31 (3)⃘ away from the crystallographic b axis, within the bc plane.166Er Mössbauer spectroscopy work supports this structure and shows clear signals of the spin-reorientation in both the magnetic and electric quadrupole hyperfine interactions.

AB - The magnetic structure of the intermetallic compound ErGa has been determined using high-resolution neutron powder diffraction. This compound crystallizes in the orthorhombic (Cmcm, No. 63) CrB-type structure and orders ferromagnetically at 32 (2) K, with the Er moments initially aligned along the b axis. Upon cooling below 16 K, the Er magnetic moments cant away from the b axis towards the c axis. At 3 K, the Er moment is 8.7 (3) μB and the Er magnetic moments point in the direction 31 (3)⃘ away from the crystallographic b axis, within the bc plane.166Er Mössbauer spectroscopy work supports this structure and shows clear signals of the spin-reorientation in both the magnetic and electric quadrupole hyperfine interactions.

KW - Magnetic structures

KW - Mössbauer spectroscopy

KW - Neutron diffraction

KW - Rare-earth intermetallics

U2 - 10.1107/S205252062400862X

DO - 10.1107/S205252062400862X

M3 - Journal article

C2 - 39422449

AN - SCOPUS:85206220415

SN - 2052-5192

VL - 80

SP - 443

EP - 450

JO - Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials

JF - Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials

ER -

The magnetic structure and spin-reorientation of ErGa

Abstract

Keywords

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