57078 20200221144255.0 doi 10.1103/PhysRevB.94.125141 sideral 96687 ART-2016-96687 eng (orcid)0000-0002-6425-024X Stankiewicz, J. Universidad de Zaragoza Electrical transport properties of single-crystal CaB 6, SrB 6, and BaB 6 2016 Access copy available to the general public Unrestricted The electrical resistivity and Hall effect of alkaline-earth-metal hexaboride single crystals are measured as a function of temperature, hydrostatic pressure, and magnetic field. The transport properties vary weakly with the external parameters and are modeled in terms of intrinsic variable-valence defects. These defects can stay either in (1) delocalized shallow levels or in (2) localized levels resonant with the conduction band, which can be neutral or negatively charged. Satisfactory agreement is obtained for electronic transport properties in a broad temperature and pressure range, although fitting the magnetoresistance is less straightforward and a combination of various mechanisms is needed to explain the field and temperature dependences. info:eu-repo/grantAgreement/ES/DGA/CAMRADS info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-01 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 3.836 2016 PHYSICS, CONDENSED MATTER 18 / 67 = 0.269 2016 Q2 T1 2.339 2016 Electronic, Optical and Magnetic Materials 2016 Q1 Condensed Matter Physics 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rosa, P.F.S. Schlottmann, P. Fisk, Z. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 94, 12 (2016), 125141 [8 pp] Phys. Rev. B, Condens. matter mater. phys. Physical Review B. Condensed Matter and Materials Physics 1098-0121 707090 http://zaguan.unizar.es/record/57078/files/texto_completo.pdf Versión publicada 133634 http://zaguan.unizar.es/record/57078/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:57078 articulos driver 2020-02-21-13:29:43 ARTICLE