A 169Tm-Mössbauer spectroscopy investigation of orthorhombic phase o - TmMnO3

H. A. Salama; G. A. Stewart; W. D. Hutchison; K. Nishimura; D. R. Scott; H. St C. O'Neill

doi:10.1016/j.ssc.2009.11.002

A ¹⁶⁹Tm-Mössbauer spectroscopy investigation of orthorhombic phase o - TmMnO₃

H. A. Salama^*, G. A. Stewart, W. D. Hutchison, K. Nishimura, D. R. Scott, H. St C. O'Neill

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

AC susceptibility and specific heat measurements confirm that the Mn sub-lattice of o-TmMnO₃ orders at T_N^{M n} ≈ 41 K with a weaker feature at T_C ≈ 32 K. ¹⁶⁹Tm-Mössbauer spectra are interpreted in terms of a single, asymmetric, quadrupole-split doublet whose line width increases sharply at T_C. This suggests the presence of a weak induced Tm-site moment, consistent with claims that the Mn sub-lattice magnetism undergoes a transition from incommensurate to collinear antiferromagnetic order at this temperature.

Original language	English
Pages (from-to)	289-291
Number of pages	3
Journal	Solid State Communications
Volume	150
Issue number	5-6
DOIs	https://doi.org/10.1016/j.ssc.2009.11.002
Publication status	Published - Feb 2010

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10.1016/j.ssc.2009.11.002

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title = "A 169Tm-M{\"o}ssbauer spectroscopy investigation of orthorhombic phase o - TmMnO3",

abstract = "AC susceptibility and specific heat measurements confirm that the Mn sub-lattice of o-TmMnO3 orders at TNM n ≈ 41 K with a weaker feature at TC ≈ 32 K. 169Tm-M{\"o}ssbauer spectra are interpreted in terms of a single, asymmetric, quadrupole-split doublet whose line width increases sharply at TC. This suggests the presence of a weak induced Tm-site moment, consistent with claims that the Mn sub-lattice magnetism undergoes a transition from incommensurate to collinear antiferromagnetic order at this temperature.",

keywords = "A. Antiferromagnetic, A. Manganites, B. High pressure synthesis, C. Orthorhombic, D. Anti-ferromagnetic, E. Tm-M{\"o}ssbauer",

author = "Salama, {H. A.} and Stewart, {G. A.} and Hutchison, {W. D.} and K. Nishimura and Scott, {D. R.} and O'Neill, {H. St C.}",

year = "2010",

month = feb,

doi = "10.1016/j.ssc.2009.11.002",

language = "English",

volume = "150",

pages = "289--291",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "5-6",

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TY - JOUR

T1 - A 169Tm-Mössbauer spectroscopy investigation of orthorhombic phase o - TmMnO3

AU - Salama, H. A.

AU - Stewart, G. A.

AU - Hutchison, W. D.

AU - Nishimura, K.

AU - Scott, D. R.

AU - O'Neill, H. St C.

PY - 2010/2

Y1 - 2010/2

N2 - AC susceptibility and specific heat measurements confirm that the Mn sub-lattice of o-TmMnO3 orders at TNM n ≈ 41 K with a weaker feature at TC ≈ 32 K. 169Tm-Mössbauer spectra are interpreted in terms of a single, asymmetric, quadrupole-split doublet whose line width increases sharply at TC. This suggests the presence of a weak induced Tm-site moment, consistent with claims that the Mn sub-lattice magnetism undergoes a transition from incommensurate to collinear antiferromagnetic order at this temperature.

AB - AC susceptibility and specific heat measurements confirm that the Mn sub-lattice of o-TmMnO3 orders at TNM n ≈ 41 K with a weaker feature at TC ≈ 32 K. 169Tm-Mössbauer spectra are interpreted in terms of a single, asymmetric, quadrupole-split doublet whose line width increases sharply at TC. This suggests the presence of a weak induced Tm-site moment, consistent with claims that the Mn sub-lattice magnetism undergoes a transition from incommensurate to collinear antiferromagnetic order at this temperature.

KW - A. Antiferromagnetic

KW - A. Manganites

KW - B. High pressure synthesis

KW - C. Orthorhombic

KW - D. Anti-ferromagnetic

KW - E. Tm-Mössbauer

UR - http://www.scopus.com/inward/record.url?scp=72449159279&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2009.11.002

DO - 10.1016/j.ssc.2009.11.002

M3 - Article

SN - 0038-1098

VL - 150

SP - 289

EP - 291

JO - Solid State Communications

JF - Solid State Communications

IS - 5-6

ER -

A ¹⁶⁹Tm-Mössbauer spectroscopy investigation of orthorhombic phase o - TmMnO₃

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