Low Temperature Physics: 40, 367 (2014); https://doi.org/10.1063/1.4869590
Физика Низких Температур: Том 40, Выпуск 4 (Апрель 2014), c. 472-476    ( к оглавлению , назад )

Crossover from the weak to strong-field behavior of the longitudinal interlayer magnetoresistance in quasi-two-dimensional conductors

A.D. Grigoriev

Samara State University, Russia
E-mail: grigorev@itp.ac.ru

P.D. Grigoriev

L.D. Landau Institute for Theoretical Physics, Chernogolovka, Russia

Received October 28, 2013


We investigate the monotonic growth of longitudinal interlayer magnetoresistance R̅zz(Bz), analyticallyand numerically in the self-consistent Born approximation. We show that in a weak magnetic field the monotonic part of R̅zz(Bz) is almost constant and starts to grow only above the crossover field Bc, when the Landau levels (LL) become isolated, i.e., when the LL separation becomes greater than the LL broadening. In higher field Bz >> Bc, R̅zz(Bz) µ Bz1/2 in agreement with previous works.

PACS: 72.15.Gd Galvanomagnetic and other magnetotransport effects;
PACS: 73.43.Qt Magnetoresistance;
PACS: 74.70.Kn Organic superconductors;
PACS: 74.72.–h Cuprate superconductors.

Key words: magnetoresistance, crossover field, Landau levels.