TY - JOUR
T1 - De Haas-van Alphen effect in the mixed state of LuNi2B 2C
T2 - Anisotropy and field dependence of the damping due to superconductivity
AU - Isshiki, T.
AU - Kimura, N.
AU - Aoki, H.
AU - Terashima, T.
AU - Uji, S.
AU - Yamauchi, K.
AU - Harima, H.
AU - Jaiswal-Nagar, D.
AU - Ramakrishnan, S.
AU - Grover, A. K.
PY - 2008/10/30
Y1 - 2008/10/30
N2 - We report observation of the de Haas-van Alphen oscillations in the mixed state as well as in the normal state of LuNi2 B2 C. Two oscillations α and η are observed in the mixed state. In particular, the α oscillation can be studied not only deep in the mixed state as a function of magnetic field but also as a function of field direction. The damping rate of the oscillations due to superconductivity is found to be very anisotropic. For fields far below Hc2, the damping behavior is anomalous and cannot be explained only in terms of the superconducting gap. We argue that both the anisotropy of the gap and a disorder of the flux line lattice are responsible for the anisotropic and anomalous behavior of the damping in the mixed state.
AB - We report observation of the de Haas-van Alphen oscillations in the mixed state as well as in the normal state of LuNi2 B2 C. Two oscillations α and η are observed in the mixed state. In particular, the α oscillation can be studied not only deep in the mixed state as a function of magnetic field but also as a function of field direction. The damping rate of the oscillations due to superconductivity is found to be very anisotropic. For fields far below Hc2, the damping behavior is anomalous and cannot be explained only in terms of the superconducting gap. We argue that both the anisotropy of the gap and a disorder of the flux line lattice are responsible for the anisotropic and anomalous behavior of the damping in the mixed state.
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U2 - 10.1103/PhysRevB.78.134528
DO - 10.1103/PhysRevB.78.134528
M3 - Article
AN - SCOPUS:55349114399
SN - 1098-0121
VL - 78
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 13
M1 - 134528
ER -