Abstract
The change of the de Haas-van Alphen (dHvA) oscillation between the low-field spin-density-wave (SDW) phase and the high-field (H ≥ 23 T) metallic phase of the organic conductor α-(BEDT-TTF)2KHg(SCN)4 is explained in terms of a model of the magnetic breakdown (MB) and a reconstructed Fermi surface by SDW. On the reconstructed Fermi surface, the scattering time obtained by fitting the standard Lifshitz-Kosevich formulation to the dHvA oscillations is affected by the MB giving the additional field-dependent effect. Furthermore, the evaluation of the effective mass needs to consider the additional temperature-dependent factor being due to the MB gap which may change intrinsically and/or thermally with temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 303-306 |
| Number of pages | 4 |
| Journal | Physica B: Condensed Matter |
| Volume | 246-247 |
| DOIs | |
| Publication status | Published - 1998 May 29 |
Keywords
- De Haas-van Alphen oscillation
- Effective mass
- Organic conductor
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Fingerprint Dive into the research topics of 'High-field phase transitions and Fermi surfaces in the organic conductor α-(BEDT-TTF)<sub>2</sub>KHg(SCN)<sub>4</sub>: Influence of the magnetic breakdown on evaluation of the effective mass and the scattering time'. Together they form a unique fingerprint.
Cite this
Sasaki, T., Biberacher, W., & Fukase, T. (1998). High-field phase transitions and Fermi surfaces in the organic conductor α-(BEDT-TTF)2KHg(SCN)4: Influence of the magnetic breakdown on evaluation of the effective mass and the scattering time. Physica B: Condensed Matter, 246-247, 303-306. https://doi.org/10.1016/S0921-4526(97)00921-6