Observation of Antiferromagnetic Resonance in an Organic Superconductor | Zendy

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

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Observation of Antiferromagnetic Resonance in an Organic Superconductor

Author(s) -

J. B. Torrance,

H. J. Pedersen,

K. Bechgaard

Publication year - 1982

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.49.881

Subject(s) - antiferromagnetism , condensed matter physics , superconductivity , organic superconductor , materials science , absorption (acoustics) , spin (aerodynamics) , spin wave , resonance (particle physics) , spin density wave , amplitude , physics , ferromagnetism , atomic physics , quantum mechanics , composite material , thermodynamics

Anomalous microwave absorption has been observed in the organic superconductor TMTSF/sub 2/AsF/sub 6/ (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%.

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