Slow Oscillations of Magnetoresistance in Quasi-Two-Dimensional Metals
Abstract
Slow oscillations of the interlayer magnetoresistance observed in the layered organic metal β-(BEDT-TTF)2IBr2 are shown to originate from the slight warping of its Fermi surface rather than from independent small cyclotron orbits. Unlike the usual Shubnikov-de Haas effect, these oscillations are not affected by the temperature smearing of the Fermi distribution and can therefore become dominant at high enough temperatures. We suggest that the slow oscillations are a general feature of clean quasi-two-dimensional metals and discuss possible applications of the phenomenon.
- Publication:
-
Physical Review Letters
- Pub Date:
- August 2002
- DOI:
- 10.1103/PhysRevLett.89.126802
- arXiv:
- arXiv:cond-mat/0203279
- Bibcode:
- 2002PhRvL..89l6802K
- Keywords:
-
- 73.50.Jt;
- 71.18.+y;
- 72.15.Gd;
- Galvanomagnetic and other magnetotransport effects;
- Fermi surface: calculations and measurements;
- effective mass g factor;
- Condensed Matter
- E-Print:
- 11 pages, 3 figures