000057078 001__ 57078 000057078 005__ 20200221144255.0 000057078 0247_ $$2doi$$a10.1103/PhysRevB.94.125141 000057078 0248_ $$2sideral$$a96687 000057078 037__ $$aART-2016-96687 000057078 041__ $$aeng 000057078 100__ $$0(orcid)0000-0002-6425-024X$$aStankiewicz, J.$$uUniversidad de Zaragoza 000057078 245__ $$aElectrical transport properties of single-crystal CaB 6, SrB 6, and BaB 6 000057078 260__ $$c2016 000057078 5060_ $$aAccess copy available to the general public$$fUnrestricted 000057078 5203_ $$aThe 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. 000057078 536__ $$9info:eu-repo/grantAgreement/ES/DGA/CAMRADS$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-01 000057078 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/ 000057078 590__ $$a3.836$$b2016 000057078 591__ $$aPHYSICS, CONDENSED MATTER$$b18 / 67 = 0.269$$c2016$$dQ2$$eT1 000057078 592__ $$a2.339$$b2016 000057078 593__ $$aElectronic, Optical and Magnetic Materials$$c2016$$dQ1 000057078 593__ $$aCondensed Matter Physics$$c2016$$dQ1 000057078 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000057078 700__ $$aRosa, P.F.S. 000057078 700__ $$aSchlottmann, P. 000057078 700__ $$aFisk, Z. 000057078 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000057078 773__ $$g94, 12 (2016), 125141 [8 pp]$$pPhys. Rev. B, Condens. matter mater. phys.$$tPhysical Review B. Condensed Matter and Materials Physics$$x1098-0121 000057078 8564_ $$s707090$$uhttps://zaguan.unizar.es/record/57078/files/texto_completo.pdf$$yVersión publicada 000057078 8564_ $$s133634$$uhttps://zaguan.unizar.es/record/57078/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000057078 909CO $$ooai:zaguan.unizar.es:57078$$particulos$$pdriver 000057078 951__ $$a2020-02-21-13:29:43 000057078 980__ $$aARTICLE