Zverev, V.N.Biberacher, W.Oberbauer, S.Sheikin, I.Alemany i Cahner, PereCanadell, Enric, 1950-Kartsovnik M.V.2022-04-042022-04-042019-03-212469-9950https://hdl.handle.net/2445/184701We present detailed studies of the high-field magnetoresistance of the layered organic metal κ-(BETS)2Mn- [N(CN)2]3 under a pressure slightly above the insulator-metal transition. The experimental data are analyzed in terms of the Fermi surface properties and compared with the results of first-principles band structure calculations. The calculated size and shape of the in-plane Fermi surface are in very good agreement with those derived from Shubnikov-de Haas oscillations as well as the classical angle-dependent magnetoresistance oscillations. A comparison of the experimentally obtained effective cyclotron masses with the calculated band masses reveals electron correlations significantly dependent on the electron momentum. The momentum- or band-dependent mobility is also reflected in the behavior of the classical magnetoresistance anisotropy in a magnetic field parallel to layers. Other characteristics of the conducting system related to interlayer charge transfer and scattering mechanisms are discussed based on the experimental data. Besides the known high-field effects associated with the Fermi surface geometry, new pronounced features have been found in the angle-dependent magnetoresistance, which might be caused by coupling of the metallic charge transport to a magnetic instability in proximity to the metal-insulator phase boundary.application/pdfeng(c) American Physical Society, 2019Estructura electrònicaTeoria del funcional de densitatMagnetismeElectronic structureDensity functionalsMagnetisminfo:eu-repo/semantics/article7140782022-04-04info:eu-repo/semantics/openAccess