Magnetic oscillations in a two-dimensional network of compensated electron and hole orbits

Abstract

The FS of (ET)8Hg4Cl12(C6H5Br)2 can be regarded as a 2D network of compensated electron and hole orbits coupled by magnetic breakthrough. Simultaneous measurements of the interlayer magnetoresistance and magnetic torque have been performed up to 28 T. Magnetoresistance and de dHvA oscillations spectra exhibit frequency combinations typical of such a network. Even though some of the observed magnetoresistance oscillations cannot be interpreted on the basis of neither conventional SdH oscillations nor quantum interference, the temperature and magnetic field (both orientation and magnitude) dependence of all the Fourier components of the dHvA spectra can be consistently accounted for by the LK formula. This behaviour is at variance with that currently reported for compounds illustrating the linear chain of coupled orbits model.

arXiv commentaccepted for publication in europhysics Letters

References in corpus (4)

• Slow oscillations of magnetoresistance in quasi-two-dimensional metals
• de Haas-van Alphen Effect in the Two-Dimensional and the Quasi-Two-Dimensional Systems
• Competing types of quantum oscillations in the 2D organic conductor (BEDT-TTF)8Hg4Cl12(C6H5Cl)2
• Analytical treatment of the dHvA frequency combinations due to chemical potential oscillations in an idealized two-band Fermi liquid

Cited by in corpus (9)

• Quantum oscillations in the linear chain of coupled orbits: the organic metal with two cation layers theta-(ET)(4)CoBr(4)(C(6)H(4)Cl(2))
• Crystal structure, Fermi surface calculations and Shubnikov-de Haas oscillations spectrum of the organic metal $\theta$-(BETS)${}_4$HgBr${}_4$(C${}_6$H${}_5$Cl) at low temperature
• Damping of field-induced chemical potential oscillations in ideal two-band compensated metals
• Random walks and magnetic oscillations in compensated metals
• Shubnikov-de Haas oscillations spectrum of the strongly correlated quasi-2D organic metal (ET)8[Hg4Cl12(C6H5Br)]2 under pressure
• Organic conductors in high magnetic fields: model systems for quantum oscillations physics
• Temperature- and pressure-dependent metallic states in (BEDT-TTF)8[Hg4Br12(C6H5Br)2]
• Magnetoconductivity of a metal with closed Fermi surface reconstructed by a biaxial density wave
• Enhancements of the 3/2 and 5/2 frequencies of de Haas-van Alphen oscillations near the Lifshitz transition in the two-dimensional compensated metal with overtilted Dirac cones