2014/10/30 by O. Galbova, Galbova, O., V. G. Peschansky +2
Engineering · Materials Science · Physics and Astronomy · #Anisotropy #Condensed matter physics #Electrical conductor #Electrical engineering #FOS: Physical sciences #Fermi surface #Magnetic Field Sensors Techniques #Magnetic Properties of Alloys #Magnetic field #Magnetic properties of thin films #Magnetoresistance #Materials science #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Optics #Phase transition #Physics #Superconductivity #Topology (electrical circuits) #cond-mat.mes-hall
paper · pdf · doi:10.48550/arxiv.1410.8330
8 pages, 1 figure
arxiv created 2014/10/30 · openalex publication_date 2014/10/30 · arxiv updated 2014/10/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The resistance of layered conductors with a multisheet Fermi surface (FS), in a high magnetic field, in the immediate vicinity of Lifshic's topological transition when the separate FS sheets are drown together by an external action, pressure in part (and eventual change of the FS connectivity) is studied theoretically. Analysis of magnetoresistance near topological transition is illustrated for the case of FS in the shape of lightly corrugated cylinder and two corrugated planes distributed with a repeated period in the pulse space. It yields, that as the FS plane sheets approach sufficiently the cylinder, the charge carriers produce a magnetic breakdown of one FS sheet to another, decreasing a sharp anisotropy of magnetoresistance to the in-plane current. Instead of square increase with a magnetic field, the slower resistance growth remains linear in the field within a broad magnetic-field range. In the intimate vicinity of topological transition, when the energy gap between FS layers is negligibly small, the resistance is saturated.