Spin-liquid-like state in pure and Mn-doped TbInO3 with a nearly triangular lattice

M. G. Kim; B. Winn; S. Chi; A. T. Savici; J. A. Rodriguez-Rivera; W. C. Chen; X. Xu; Y. Li; J. W. Kim; S. W. Cheong; V. Kiryukhin

doi:10.1103/PhysRevB.100.024405

Spin-liquid-like state in pure and Mn-doped TbInO3 with a nearly triangular lattice

M. G. Kim, B. Winn, S. Chi, A. T. Savici, J. A. Rodriguez-Rivera, W. C. Chen, X. Xu, Y. Li, J. W. Kim, S. W. Cheong, V. Kiryukhin

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Abstract

Inelastic neutron scattering studies in single crystals of TbInO3 and TbIn0.95Mn0.05O3 with nearly triangular antiferromagnetic lattice are reported. At low energies, a broad and apparently gapless continuum of magnetic excitations, located at the triangular lattice (TL) Brillouin zone boundary, is observed. The data are well described by the uncorrelated nearest-neighbor valence bonds model. At higher energies, a broad excitation branch dispersing from the TL zone boundary is observed. No signs of static magnetic order are found down to the temperatures two orders of magnitude smaller than the effective interaction energy. The fluctuating magnetic moment exceeds two-thirds of the Tb3+ free-ion value and is confined to the TL plane. These observations are consistent with a TL-based spin liquid state in TbInO3.

Original language	English (US)
Article number	024405
Journal	Physical Review B
Volume	100
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.100.024405
State	Published - Jul 3 2019
Externally published	Yes

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title = "Spin-liquid-like state in pure and Mn-doped TbInO3 with a nearly triangular lattice",

abstract = "Inelastic neutron scattering studies in single crystals of TbInO3 and TbIn0.95Mn0.05O3 with nearly triangular antiferromagnetic lattice are reported. At low energies, a broad and apparently gapless continuum of magnetic excitations, located at the triangular lattice (TL) Brillouin zone boundary, is observed. The data are well described by the uncorrelated nearest-neighbor valence bonds model. At higher energies, a broad excitation branch dispersing from the TL zone boundary is observed. No signs of static magnetic order are found down to the temperatures two orders of magnitude smaller than the effective interaction energy. The fluctuating magnetic moment exceeds two-thirds of the Tb3+ free-ion value and is confined to the TL plane. These observations are consistent with a TL-based spin liquid state in TbInO3.",

author = "Kim, {M. G.} and B. Winn and S. Chi and Savici, {A. T.} and Rodriguez-Rivera, {J. A.} and Chen, {W. C.} and X. Xu and Y. Li and Kim, {J. W.} and Cheong, {S. W.} and V. Kiryukhin",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society. US.",

year = "2019",

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doi = "10.1103/PhysRevB.100.024405",

language = "English (US)",

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T1 - Spin-liquid-like state in pure and Mn-doped TbInO3 with a nearly triangular lattice

AU - Kim, M. G.

AU - Winn, B.

AU - Chi, S.

AU - Savici, A. T.

AU - Rodriguez-Rivera, J. A.

AU - Chen, W. C.

AU - Xu, X.

AU - Li, Y.

AU - Kim, J. W.

AU - Cheong, S. W.

AU - Kiryukhin, V.

PY - 2019/7/3

Y1 - 2019/7/3

N2 - Inelastic neutron scattering studies in single crystals of TbInO3 and TbIn0.95Mn0.05O3 with nearly triangular antiferromagnetic lattice are reported. At low energies, a broad and apparently gapless continuum of magnetic excitations, located at the triangular lattice (TL) Brillouin zone boundary, is observed. The data are well described by the uncorrelated nearest-neighbor valence bonds model. At higher energies, a broad excitation branch dispersing from the TL zone boundary is observed. No signs of static magnetic order are found down to the temperatures two orders of magnitude smaller than the effective interaction energy. The fluctuating magnetic moment exceeds two-thirds of the Tb3+ free-ion value and is confined to the TL plane. These observations are consistent with a TL-based spin liquid state in TbInO3.

AB - Inelastic neutron scattering studies in single crystals of TbInO3 and TbIn0.95Mn0.05O3 with nearly triangular antiferromagnetic lattice are reported. At low energies, a broad and apparently gapless continuum of magnetic excitations, located at the triangular lattice (TL) Brillouin zone boundary, is observed. The data are well described by the uncorrelated nearest-neighbor valence bonds model. At higher energies, a broad excitation branch dispersing from the TL zone boundary is observed. No signs of static magnetic order are found down to the temperatures two orders of magnitude smaller than the effective interaction energy. The fluctuating magnetic moment exceeds two-thirds of the Tb3+ free-ion value and is confined to the TL plane. These observations are consistent with a TL-based spin liquid state in TbInO3.

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Spin-liquid-like state in pure and Mn-doped TbInO3 with a nearly triangular lattice

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