Quantum limit in a quasionedimensional conductor in a high tilted magnetic field
Abstract
Recently, we have suggested FermiliquidnonFermiliquid angular crossovers that may exist in quasionedimensional (Q1D) conductors in high tilted magnetic fields (see A. G. Lebed, Phys. Rev. Lett. 115, 157001 (2015)). All calculations in the Letter were done by using the quasiclassical Peierls substitution method, whose applicability in high magnetic fields was questionable. Here, we solve a fully quantum mechanical problem and show that the main qualitative conclusions of the work cited above are correct. In particular, we show that in high magnetic fields, applied along one of the two main crystallographic axis, we have 2D electron spectrum, whereas, for directions of high magnetic fields far from the axes, we have 1D electron spectrum. The latter is known to promote nonFermiliquid properties. As a result, we expect the existence of FermiliquidnonFermiliquid angular crossovers or phase transitions. Electronic parameters of Q1D conductor (Per)_{2}Pt(mnt)_{2} show that such transitions can appear in feasible high magnetic fields of the order of H ≃ 2025 T.
 Publication:

Soviet Journal of Experimental and Theoretical Physics Letters
 Pub Date:
 October 2017
 DOI:
 10.1134/S0021364017200048
 arXiv:
 arXiv:1805.02758
 Bibcode:
 2017JETPL.106..509L
 Keywords:

 Condensed Matter  Strongly Correlated Electrons
 EPrint:
 4 pages, 0 figures