Magnetic ordering in TmGa

J.M. Cadogan, G.A. Stewart, S. Muños Pérez, R. Corbas, Britt Rosendahl Hansen, M. Avdeev, W.D. Hutchison

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We have determined the magnetic structure of the intermetallic compound TmGa by high-resolution neutron powder diffraction and 169Tm Mössbauer spectroscopy. This compound crystallizes in the orthorhombic (Cmcm) CrB-type structure and its magnetic structure is characterized by magnetic order of the Tm sublattice along the a-axis. The initial magnetic ordering occurs at 15(1) K and yields an
incommensurate antiferromagnetic structure described by the propagation vector k1 = [0 0.275(2) 0]. At 12 K the dominant ferromagnetic ordering of the Tm sublattice along the a-axis develops in what appears to be a first-order transition. At 3 K the magnetic structure of TmGa is predominantly ferromagnetic but a weakened incommensurate component remains. The ferromagnetic Tm moment reaches
6.7(2) μB at 3 K and the amplitude of the remaining incommensurate component is 2.7(4) μB. The 169Tm hyperfine magnetic field at 5 K is 631(1) T.

Original languageEnglish
JournalJournal of Physics: Condensed Matter
Volume26
Issue number11
ISSN0953-8984
DOIs
Publication statusPublished - 2014

Keywords

  • Magnetic structure
  • Mossbauer spectroscopy
  • Rare-earth intermetallics

Cite this

Cadogan, J. M., Stewart, G. A., Muños Pérez, S., Corbas, R., Hansen, B. R., Avdeev, M., & Hutchison, W. D. (2014). Magnetic ordering in TmGa. Journal of Physics: Condensed Matter, 26(11). https://doi.org/10.1088/0953-8984/26/11/116002
Cadogan, J.M. ; Stewart, G.A. ; Muños Pérez, S. ; Corbas, R. ; Hansen, Britt Rosendahl ; Avdeev, M. ; Hutchison, W.D. / Magnetic ordering in TmGa. In: Journal of Physics: Condensed Matter. 2014 ; Vol. 26, No. 11.
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title = "Magnetic ordering in TmGa",
abstract = "We have determined the magnetic structure of the intermetallic compound TmGa by high-resolution neutron powder diffraction and 169Tm M{\"o}ssbauer spectroscopy. This compound crystallizes in the orthorhombic (Cmcm) CrB-type structure and its magnetic structure is characterized by magnetic order of the Tm sublattice along the a-axis. The initial magnetic ordering occurs at 15(1) K and yields an incommensurate antiferromagnetic structure described by the propagation vector k1 = [0 0.275(2) 0]. At 12 K the dominant ferromagnetic ordering of the Tm sublattice along the a-axis develops in what appears to be a first-order transition. At 3 K the magnetic structure of TmGa is predominantly ferromagnetic but a weakened incommensurate component remains. The ferromagnetic Tm moment reaches 6.7(2) μB at 3 K and the amplitude of the remaining incommensurate component is 2.7(4) μB. The 169Tm hyperfine magnetic field at 5 K is 631(1) T.",
keywords = "Magnetic structure, Mossbauer spectroscopy, Rare-earth intermetallics",
author = "J.M. Cadogan and G.A. Stewart and {Mu{\~n}os P{\'e}rez}, S. and R. Corbas and Hansen, {Britt Rosendahl} and M. Avdeev and W.D. Hutchison",
year = "2014",
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language = "English",
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Cadogan, JM, Stewart, GA, Muños Pérez, S, Corbas, R, Hansen, BR, Avdeev, M & Hutchison, WD 2014, 'Magnetic ordering in TmGa', Journal of Physics: Condensed Matter, vol. 26, no. 11. https://doi.org/10.1088/0953-8984/26/11/116002

Magnetic ordering in TmGa. / Cadogan, J.M.; Stewart, G.A.; Muños Pérez, S.; Corbas, R.; Hansen, Britt Rosendahl; Avdeev, M.; Hutchison, W.D.

In: Journal of Physics: Condensed Matter, Vol. 26, No. 11, 2014.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Magnetic ordering in TmGa

AU - Cadogan, J.M.

AU - Stewart, G.A.

AU - Muños Pérez, S.

AU - Corbas, R.

AU - Hansen, Britt Rosendahl

AU - Avdeev, M.

AU - Hutchison, W.D.

PY - 2014

Y1 - 2014

N2 - We have determined the magnetic structure of the intermetallic compound TmGa by high-resolution neutron powder diffraction and 169Tm Mössbauer spectroscopy. This compound crystallizes in the orthorhombic (Cmcm) CrB-type structure and its magnetic structure is characterized by magnetic order of the Tm sublattice along the a-axis. The initial magnetic ordering occurs at 15(1) K and yields an incommensurate antiferromagnetic structure described by the propagation vector k1 = [0 0.275(2) 0]. At 12 K the dominant ferromagnetic ordering of the Tm sublattice along the a-axis develops in what appears to be a first-order transition. At 3 K the magnetic structure of TmGa is predominantly ferromagnetic but a weakened incommensurate component remains. The ferromagnetic Tm moment reaches 6.7(2) μB at 3 K and the amplitude of the remaining incommensurate component is 2.7(4) μB. The 169Tm hyperfine magnetic field at 5 K is 631(1) T.

AB - We have determined the magnetic structure of the intermetallic compound TmGa by high-resolution neutron powder diffraction and 169Tm Mössbauer spectroscopy. This compound crystallizes in the orthorhombic (Cmcm) CrB-type structure and its magnetic structure is characterized by magnetic order of the Tm sublattice along the a-axis. The initial magnetic ordering occurs at 15(1) K and yields an incommensurate antiferromagnetic structure described by the propagation vector k1 = [0 0.275(2) 0]. At 12 K the dominant ferromagnetic ordering of the Tm sublattice along the a-axis develops in what appears to be a first-order transition. At 3 K the magnetic structure of TmGa is predominantly ferromagnetic but a weakened incommensurate component remains. The ferromagnetic Tm moment reaches 6.7(2) μB at 3 K and the amplitude of the remaining incommensurate component is 2.7(4) μB. The 169Tm hyperfine magnetic field at 5 K is 631(1) T.

KW - Magnetic structure

KW - Mossbauer spectroscopy

KW - Rare-earth intermetallics

U2 - 10.1088/0953-8984/26/11/116002

DO - 10.1088/0953-8984/26/11/116002

M3 - Journal article

VL - 26

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 0953-8984

IS - 11

ER -

Cadogan JM, Stewart GA, Muños Pérez S, Corbas R, Hansen BR, Avdeev M et al. Magnetic ordering in TmGa. Journal of Physics: Condensed Matter. 2014;26(11). https://doi.org/10.1088/0953-8984/26/11/116002