Anomalous vortex dynamics in -[bis(ethylenedithio)tetrathiafulvalene] 2Cu[N(CN)2]Br: Evidence for field-induced magnetic order and unconventional superconductivity

U. G.L. Lahaise; Qun Chen; L. E. De Long; C. P. Brock; H. H. Wang; K. D. Carlson; J. A. Schlueter; J. M. Williams

doi:10.1103/PhysRevB.51.3301

Anomalous vortex dynamics in -[bis(ethylenedithio)tetrathiafulvalene] 2Cu[N(CN)2]Br: Evidence for field-induced magnetic order and unconventional superconductivity

U. G.L. Lahaise, Qun Chen, L. E. De Long, C. P. Brock, H. H. Wang, K. D. Carlson, J. A. Schlueter, J. M. Williams

Physics And Astronomy

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Abstract

Anisotropic superconducting flux-line behavior of single-crystal -[bis(ethylenedithio)tetrathiaful- valene]2Cu[N(CN)2]Br has been studied with dc magnetization and vibrating-reed (VR) techniques. A peak at T*(H) in the temperature dependence of the VR inverse quality factor 1/Q exhibits a shoulder for magnetic fields 0<0H0.5 T parallel to the conducting ac plane. The shoulder becomes unresolved near a kink in T*(H) at 0H0.7 T. Discontinuities in 1/Q and the VR frequency shift occur for 0.10H1.3 T applied perpendicular to the ac plane and temperatures T20 K, well into the normal state. These anomalies are preliminary evidence for a field-induced magnetic phase transition and unconventional superconductivity.

Original language	English
Pages (from-to)	3301-3304
Number of pages	4
Journal	Physical Review B
Volume	51
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.51.3301
State	Published - 1995

ASJC Scopus subject areas

Condensed Matter Physics

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Lahaise, U. G. L., Chen, Q., De Long, L. E., Brock, C. P., Wang, H. H., Carlson, K. D., Schlueter, J. A., & Williams, J. M. (1995). Anomalous vortex dynamics in -[bis(ethylenedithio)tetrathiafulvalene] 2Cu[N(CN)2]Br: Evidence for field-induced magnetic order and unconventional superconductivity. Physical Review B, 51(5), 3301-3304. https://doi.org/10.1103/PhysRevB.51.3301

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title = "Anomalous vortex dynamics in -[bis(ethylenedithio)tetrathiafulvalene] 2Cu[N(CN)2]Br: Evidence for field-induced magnetic order and unconventional superconductivity",

abstract = "Anisotropic superconducting flux-line behavior of single-crystal -[bis(ethylenedithio)tetrathiaful- valene]2Cu[N(CN)2]Br has been studied with dc magnetization and vibrating-reed (VR) techniques. A peak at T*(H) in the temperature dependence of the VR inverse quality factor 1/Q exhibits a shoulder for magnetic fields 0<0H0.5 T parallel to the conducting ac plane. The shoulder becomes unresolved near a kink in T*(H) at 0H0.7 T. Discontinuities in 1/Q and the VR frequency shift occur for 0.10H1.3 T applied perpendicular to the ac plane and temperatures T20 K, well into the normal state. These anomalies are preliminary evidence for a field-induced magnetic phase transition and unconventional superconductivity.",

author = "Lahaise, {U. G.L.} and Qun Chen and {De Long}, {L. E.} and Brock, {C. P.} and Wang, {H. H.} and Carlson, {K. D.} and Schlueter, {J. A.} and Williams, {J. M.}",

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T2 - Evidence for field-induced magnetic order and unconventional superconductivity

AU - Lahaise, U. G.L.

AU - Chen, Qun

AU - De Long, L. E.

AU - Brock, C. P.

AU - Wang, H. H.

AU - Carlson, K. D.

AU - Schlueter, J. A.

AU - Williams, J. M.

PY - 1995

Y1 - 1995

N2 - Anisotropic superconducting flux-line behavior of single-crystal -[bis(ethylenedithio)tetrathiaful- valene]2Cu[N(CN)2]Br has been studied with dc magnetization and vibrating-reed (VR) techniques. A peak at T*(H) in the temperature dependence of the VR inverse quality factor 1/Q exhibits a shoulder for magnetic fields 0<0H0.5 T parallel to the conducting ac plane. The shoulder becomes unresolved near a kink in T*(H) at 0H0.7 T. Discontinuities in 1/Q and the VR frequency shift occur for 0.10H1.3 T applied perpendicular to the ac plane and temperatures T20 K, well into the normal state. These anomalies are preliminary evidence for a field-induced magnetic phase transition and unconventional superconductivity.

AB - Anisotropic superconducting flux-line behavior of single-crystal -[bis(ethylenedithio)tetrathiaful- valene]2Cu[N(CN)2]Br has been studied with dc magnetization and vibrating-reed (VR) techniques. A peak at T*(H) in the temperature dependence of the VR inverse quality factor 1/Q exhibits a shoulder for magnetic fields 0<0H0.5 T parallel to the conducting ac plane. The shoulder becomes unresolved near a kink in T*(H) at 0H0.7 T. Discontinuities in 1/Q and the VR frequency shift occur for 0.10H1.3 T applied perpendicular to the ac plane and temperatures T20 K, well into the normal state. These anomalies are preliminary evidence for a field-induced magnetic phase transition and unconventional superconductivity.

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Anomalous vortex dynamics in -[bis(ethylenedithio)tetrathiafulvalene] 2Cu[N(CN)2]Br: Evidence for field-induced magnetic order and unconventional superconductivity

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