| Numéro |
J. Phys. IV France
Volume 12, Numéro 9, November 2002
|
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|---|---|---|
| Page(s) | 89 - 90 | |
| DOI | https://doi.org/10.1051/jp4:20020365 | |
J. Phys. IV France 12 (2002) Pr9-89
DOI: 10.1051/jp4:20020365
Competing SDW phases and quantum oscillations in (TMTSF) 2ClO 4 in magnetic field
D. Radic1, A. Bjelis1 and D. Zanchi21 Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
2 Laboratoire de Physique Théorique et Hautes Énergies, Universités Paris VI Pierre et Marie Curie - Paris VII Denis Diderot, Paris, France
Abstract
We propose a new approach for studying spin density waves (SDW) in the Bechgaard salt (TMTSF)
2ClO
4
where lattice is dimerized in transverse direction due to anion ordering. The SDW response is calculated in the matrix
formulation that rigorously treats the hybridization of inter-band and intra-band SDW correlations. Since the
dimerization gap is large, of the order of transverse bandwidth, we also develop an exact treatment of magnetic
breakdown in the external magnetic field. The obtained results agree with the experimental data on the fast
magneto-resistance oscillations. Experimentally found 260T rapid oscillations and the characteristic
Tc dependance on magnetic
field of relaxed material are fitted with our results for anion potential of the order of interchain hopping.
© EDP Sciences 2002