Molecular quantum magnetism in LiZn 2 Mo 3 O 8

M. Mourigal; W. T. Fuhrman; J. P. Sheckelton; A. Wartelle; J. A. Rodriguez-Rivera; D. L. Abernathy; T. M. McQueen; C. L. Broholm

doi:10.1103/PhysRevLett.112.027202

Molecular quantum magnetism in LiZn 2 Mo 3 O 8

M. Mourigal
, W. T. Fuhrman
, J. P. Sheckelton
, A. Wartelle
, J. A. Rodriguez-Rivera
, D. L. Abernathy
, T. M. McQueen
, C. L. Broholm

Direct Geometry

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

72 Scopus citations

Abstract

Inelastic neutron scattering at low temperatures T≤30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin-1/2 Mo3O13 molecules. Apparently gapless (Δ<0.2 meV) and extending at least up to 2.5 meV, the low-energy magnetic scattering cross section is surprisingly broad in momentum space and involves one-third of the spins present above 100 K. The data are compatible with the presence of valence bonds involving nearest-neighbor and next-nearest-neighbor spins forming a disordered or dynamic state.

Original language	English
Article number	027202
Journal	Physical Review Letters
Volume	112
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.112.027202
State	Published - Jan 15 2014

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10.1103/PhysRevLett.112.027202

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title = "Molecular quantum magnetism in LiZn 2 Mo 3 O 8",

abstract = "Inelastic neutron scattering at low temperatures T≤30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin-1/2 Mo3O13 molecules. Apparently gapless (Δ<0.2 meV) and extending at least up to 2.5 meV, the low-energy magnetic scattering cross section is surprisingly broad in momentum space and involves one-third of the spins present above 100 K. The data are compatible with the presence of valence bonds involving nearest-neighbor and next-nearest-neighbor spins forming a disordered or dynamic state.",

author = "M. Mourigal and Fuhrman, \{W. T.\} and Sheckelton, \{J. P.\} and A. Wartelle and Rodriguez-Rivera, \{J. A.\} and Abernathy, \{D. L.\} and McQueen, \{T. M.\} and Broholm, \{C. L.\}",

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doi = "10.1103/PhysRevLett.112.027202",

language = "English",

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T1 - Molecular quantum magnetism in LiZn 2 Mo 3 O 8

AU - Mourigal, M.

AU - Fuhrman, W. T.

AU - Sheckelton, J. P.

AU - Wartelle, A.

AU - Rodriguez-Rivera, J. A.

AU - Abernathy, D. L.

AU - McQueen, T. M.

AU - Broholm, C. L.

PY - 2014/1/15

Y1 - 2014/1/15

N2 - Inelastic neutron scattering at low temperatures T≤30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin-1/2 Mo3O13 molecules. Apparently gapless (Δ<0.2 meV) and extending at least up to 2.5 meV, the low-energy magnetic scattering cross section is surprisingly broad in momentum space and involves one-third of the spins present above 100 K. The data are compatible with the presence of valence bonds involving nearest-neighbor and next-nearest-neighbor spins forming a disordered or dynamic state.

AB - Inelastic neutron scattering at low temperatures T≤30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin-1/2 Mo3O13 molecules. Apparently gapless (Δ<0.2 meV) and extending at least up to 2.5 meV, the low-energy magnetic scattering cross section is surprisingly broad in momentum space and involves one-third of the spins present above 100 K. The data are compatible with the presence of valence bonds involving nearest-neighbor and next-nearest-neighbor spins forming a disordered or dynamic state.

UR - https://www.scopus.com/pages/publications/84892616864

U2 - 10.1103/PhysRevLett.112.027202

DO - 10.1103/PhysRevLett.112.027202

M3 - Article

AN - SCOPUS:84892616864

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

M1 - 027202

ER -

Molecular quantum magnetism in LiZn 2 Mo 3 O 8

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