De Haas-van Alphen effect in the mixed state of LuNi2B 2C: Anisotropy and field dependence of the damping due to superconductivity

T. Isshiki, N. Kimura, Hayuyoshi Aoki, T. Terashima, S. Uji, K. Yamauchi, H. Harima, D. Jaiswal-Nagar, S. Ramakrishnan, A. K. Grover

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number134528
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number13
DOIs
Publication statusPublished - 2008 Oct 30

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'De Haas-van Alphen effect in the mixed state of LuNi<sub>2</sub>B <sub>2</sub>C: Anisotropy and field dependence of the damping due to superconductivity'. Together they form a unique fingerprint.

Cite this