TY - JOUR

T1 - Quantum limit in a quasi-one-dimensional conductor in a high tilted magnetic field

AU - Lebed, A. G.

N1 - Publisher Copyright:
© 2017, Pleiades Publishing, Inc.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Recently, we have suggested Fermi-liquid–non-Fermi-liquid angular crossovers that may exist in quasi-one-dimensional (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 non-Fermi-liquid properties. As a result, we expect the existence of Fermi-liquid–non-Fermi-liquid angular crossovers or phase transitions. Electronic parameters of Q1D conductor (Per)2Pt(mnt)2 show that such transitions can appear in feasible high magnetic fields of the order of H ≃ 20–25 T.

AB - Recently, we have suggested Fermi-liquid–non-Fermi-liquid angular crossovers that may exist in quasi-one-dimensional (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 non-Fermi-liquid properties. As a result, we expect the existence of Fermi-liquid–non-Fermi-liquid angular crossovers or phase transitions. Electronic parameters of Q1D conductor (Per)2Pt(mnt)2 show that such transitions can appear in feasible high magnetic fields of the order of H ≃ 20–25 T.

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U2 - 10.1134/S0021364017200048

DO - 10.1134/S0021364017200048

M3 - Article

AN - SCOPUS:85031939569

SN - 0021-3640

VL - 106

SP - 509

EP - 513

JO - JETP Letters

JF - JETP Letters

IS - 8

ER -