Huge linear magnetoresistance due to open orbits in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>γ</mml:mi><mml:mtext>−</mml:mtext><mml:msub><mml:mi>PtBi</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
Beilun Wu, Víctor Barrena, Hermann Suderow, Isabel Guillamón
Abstract
The authors investigate the angular magnetoresistance of the semi-metal \ensuremath{\gamma}-PtBi${}_{2}$ and find that open orbits lead to a large and linear magnetoresistance at one very specific angle. This demonstrates that the shape of the Fermi surface can lead to large values of the magnetoresistance in systems with a low carrier density.
Topics & Concepts
MagnetoresistanceCondensed matter physicsPhysicsFermi surfaceGiant magnetoresistanceColossal magnetoresistanceSurface (topology)FerromagnetismOrbit (dynamics)Fermi Gamma-ray Space TelescopeMagnetic fieldTopological Materials and PhenomenaRare-earth and actinide compoundsMetallurgical and Alloy Processes