Observation of Antiferromagnetic Resonance in an Organic Superconductor

J. B. Torrance; H. J. Pedersen; K. Bechgaard

doi:10.1103/PhysRevLett.49.881

Observation of Antiferromagnetic Resonance in an Organic Superconductor

J. B. Torrance, H. J. Pedersen, K. Bechgaard

Department of Physics

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Abstract

Anomalous microwave absorption has been observed in the organic superconductor TMTSF2AsF6 (TMTSF: tetramethyltetraselenafulvalene) below its metal-nonmetal transition near 12 K. This absorption is unambiguously identified as antiferromagnetic resonance by the excellent agreement between a spin-wave calculation and the pronounced dependence on temperature and magnetic field orientation. This result dramatically confirms earlier indications of magnetic ordering or spin-density waves and, furthermore, indicates that the spin-density-wave amplitude is considerably larger than previous estimates of <1%.

Original language	English
Journal	Physical Review Letters
Volume	49
Issue number	12
Pages (from-to)	881-884
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.49.881
Publication status	Published - 1982

Bibliographical note

Copyright (1982) by the American Physical Society.

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title = "Observation of Antiferromagnetic Resonance in an Organic Superconductor",

abstract = "Anomalous microwave absorption has been observed in the organic superconductor TMTSF2AsF6 (TMTSF: tetramethyltetraselenafulvalene) below its metal-nonmetal transition near 12 K. This absorption is unambiguously identified as antiferromagnetic resonance by the excellent agreement between a spin-wave calculation and the pronounced dependence on temperature and magnetic field orientation. This result dramatically confirms earlier indications of magnetic ordering or spin-density waves and, furthermore, indicates that the spin-density-wave amplitude is considerably larger than previous estimates of <1%.",

author = "Torrance, {J. B.} and Pedersen, {H. J.} and K. Bechgaard",

note = "Copyright (1982) by the American Physical Society.",

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pages = "881--884",

journal = "Physical Review Letters",

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AU - Torrance, J. B.

AU - Pedersen, H. J.

AU - Bechgaard, K.

PY - 1982

Y1 - 1982

N2 - Anomalous microwave absorption has been observed in the organic superconductor TMTSF2AsF6 (TMTSF: tetramethyltetraselenafulvalene) below its metal-nonmetal transition near 12 K. This absorption is unambiguously identified as antiferromagnetic resonance by the excellent agreement between a spin-wave calculation and the pronounced dependence on temperature and magnetic field orientation. This result dramatically confirms earlier indications of magnetic ordering or spin-density waves and, furthermore, indicates that the spin-density-wave amplitude is considerably larger than previous estimates of <1%.

AB - Anomalous microwave absorption has been observed in the organic superconductor TMTSF2AsF6 (TMTSF: tetramethyltetraselenafulvalene) below its metal-nonmetal transition near 12 K. This absorption is unambiguously identified as antiferromagnetic resonance by the excellent agreement between a spin-wave calculation and the pronounced dependence on temperature and magnetic field orientation. This result dramatically confirms earlier indications of magnetic ordering or spin-density waves and, furthermore, indicates that the spin-density-wave amplitude is considerably larger than previous estimates of <1%.

U2 - 10.1103/PhysRevLett.49.881

DO - 10.1103/PhysRevLett.49.881

M3 - Journal article

VL - 49

SP - 881

EP - 884

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

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