Anisotropy of the Spin Density Wave Onset for (TMTSF)_2PF_6 in Magnetic Field

Abstract

In order to study the spin density wave transition temperature (T_SDW) in (TMTSF)_2PF_6 as a function of magnetic field, we measured the magnetoresistance R_zz in fields up to 19 T. Measurements were performed for three field orientations B||a, b' and c* at ambient pressure and at P = 5 kbar, that is nearly the critical pressure. For B||c* orientation we observed quadratic field dependence of T_SDW in agreement with theory and with previous experiments. For B||b' and B||a orientations we have found no shift in T_SDW within 0.05 K, both at P=0 and P=5 kbar. This result is also consistent with theoretical predictions.

arXiv comment15 pages, 5 figures, accepted to PRB

References in corpus (1)

• Spin-density-wave transition of (TMTSF)${}_2$PF${}_6$ at high magnetic fields

Cited by in corpus (1)

• Coexistence of Superconductor and Spin-Density Wave in (TMTSF)2ClO4: Spatial Structure of the Two-phase State