TY - JOUR
T1 - Quantum liquid of vortices in the quasi-two-dimensional organic superconductor-(BEDT-TTF
AU - Sasaki, T.
AU - Biberacher, W.
AU - Neumaier, K.
AU - Hehn, W.
AU - Andres, K.
PY - 1998
Y1 - 1998
N2 - We present magnetic torque measurements on the quasi-two-dimensional organic superconductor (Formula presented)-(BEDT-TTF)(Formula presented) at low temperature (Formula presented). The irreversible field (Formula presented) lies far below the upper critical field (Formula presented) even at (Formula presented) In the magnetic field region, (Formula presented) a vortex liquid state exists even at (Formula presented) resulting from the quantum fluctuations instead of the contribution of the thermal one at higher temperature. This finding is explained as the quantum vortex liquid state driven by the quantum fluctuations from the different theoretical models. In the liquid state, de Haas-van Alphen oscillations are observed, and (Formula presented) is defined by the appearance of the additional damping on the oscillation amplitude.
AB - We present magnetic torque measurements on the quasi-two-dimensional organic superconductor (Formula presented)-(BEDT-TTF)(Formula presented) at low temperature (Formula presented). The irreversible field (Formula presented) lies far below the upper critical field (Formula presented) even at (Formula presented) In the magnetic field region, (Formula presented) a vortex liquid state exists even at (Formula presented) resulting from the quantum fluctuations instead of the contribution of the thermal one at higher temperature. This finding is explained as the quantum vortex liquid state driven by the quantum fluctuations from the different theoretical models. In the liquid state, de Haas-van Alphen oscillations are observed, and (Formula presented) is defined by the appearance of the additional damping on the oscillation amplitude.
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U2 - 10.1103/PhysRevB.57.10889
DO - 10.1103/PhysRevB.57.10889
M3 - Article
AN - SCOPUS:0001065126
SN - 1098-0121
VL - 57
SP - 10889
EP - 10892
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 17
ER -