Deformed waveshape of quantum oscillation in magnetocaloric effect for layered organic superconductor

Shiori Sugiura, Taichi Terashima, Shinya Uji, John A. Schlueter

Research output: Contribution to journalArticlepeer-review

Abstract

Magnetocaloric effect for a layered organic superconductor β''-(BEDT-TTF)2SF5CH2CF2SO3 has been investigated. At low magnetic fields, a sinusoidal quantum oscillation, arising from a closed Fermi surface, is observed. As the field increases, the waveshape of the oscillation is strongly deformed and then sharp peaks emerge. The total energy including the Landau quantized states and the elastic energy of the leads holding the sample is calculated as a function of field strength and angle, and the minimum total energy, which determines the sample angle, is obtained as a function of field. The calculated results clarify that the deformation of the quantum oscillation is ascribed to a tilting effect of the sample by the magnetic torque.

Original languageEnglish
Article number074601
Journaljournal of the physical society of japan
Volume90
Issue number7
DOIs
Publication statusPublished - 2021 Jul 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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