000057844 001__ 57844
000057844 005__ 20200221144333.0
000057844 0247_ $$2doi$$a10.1103/PhysRevB.94.014411
000057844 0248_ $$2sideral$$a95941
000057844 037__ $$aART-2016-95941
000057844 041__ $$aeng
000057844 100__ $$aGarcía-Muñoz, J.L.
000057844 245__ $$aMagnetostructural coupling, magnetic ordering, and cobalt spin reorientation in metallic P r0.5 S r0.5Co O3 cobaltite
000057844 260__ $$c2016
000057844 5060_ $$aAccess copy available to the general public$$fUnrestricted
000057844 5203_ $$aIn half-doped Pr0.50A0.50CoO3 metallic perovskites, the spin-lattice coupling brings about distinct magnetostructural transitions for A=Ca and A=Sr at temperatures close to ~100 K. However, the ground magnetic properties of Pr0.50Sr0.50CoO3 (PSCO) strongly differ from Pr0.50Ca0.50CoO3 ones, where a partial Pr3+ to Pr4+ valence shift and Co spin transition makes the system insulating below the transition. This paper investigates and describes the relationship between the Imma¿I4/mcm symmetry change [Padilla-Pantoja, García-Muñoz, Bozzo, Jirák, and Herrero-Martín, Inorg. Chem. 53, 12297 (2014)] and the original magnetic behavior of PSCO versus temperature and external magnetic fields. The FM1 and FM2 ferromagnetic phases, above and below the magnetostructural transition (TS1~120K) have been investigated. The FM2 phase of PSCO is composed of [100] FM domains, with magnetic symmetry Im'm'a (mx¿0, mz=0). The magnetic space group of the FM1 phase is Fm'm'm (with mx=my). Neutron data analyses in combination with magnetometry and earlier reports results agrees with a reorientation of the magnetization axis by 45° within the ab plane across the transition, in which the system retains its metallic character. The presence below TS1 of conjugated magnetic domains, both of Fm'm'm symmetry but having perpendicular spin orientations along the diagonals in the xy plane of the tetragonal unit cell, is at the origin of the anomalies observed in the macroscopic magnetization. A relatively small field µ0H[¿z]¿30mT is able to reorient the magnetization within the ab plane, whereas a higher field (µ0H[¿z]¿1.2T at 2 K) is necessary to align the Co moments perpendicular to the ab plane. Such a spin reorientation, in which the orbital and spin components of the Co moment rotate joined by 45°, was not observed previously in analogous cobaltites without praseodymium.
000057844 536__ $$9info:eu-repo/grantAgreement/ES/FEDER/CSD2007-00041$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38213-C02-02$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68760-C2-1-P$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2015-68760-C2-2-P
000057844 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000057844 590__ $$a3.836$$b2016
000057844 591__ $$aPHYSICS, CONDENSED MATTER$$b18 / 67 = 0.269$$c2016$$dQ2$$eT1
000057844 592__ $$a2.339$$b2016
000057844 593__ $$aElectronic, Optical and Magnetic Materials$$c2016$$dQ1
000057844 593__ $$aCondensed Matter Physics$$c2016$$dQ1
000057844 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000057844 700__ $$aPadilla-Pantoja, J.
000057844 700__ $$aTorrelles, X.
000057844 700__ $$0(orcid)0000-0002-9706-3272$$aBlasco, J.$$uUniversidad de Zaragoza
000057844 700__ $$aHerrero-Martín, J.
000057844 700__ $$aBozzo, B.
000057844 700__ $$0(orcid)0000-0002-8505-5232$$aRodríguez-Velamazán, J.A.
000057844 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000057844 773__ $$g94, 1 (2016), 014411 []$$pPhys. Rev. B, Condens. matter mater. phys.$$tPhysical Review B. Condensed Matter and Materials Physics$$x1098-0121
000057844 8564_ $$s1481129$$uhttps://zaguan.unizar.es/record/57844/files/texto_completo.pdf$$yVersión publicada
000057844 8564_ $$s124641$$uhttps://zaguan.unizar.es/record/57844/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000057844 909CO $$ooai:zaguan.unizar.es:57844$$particulos$$pdriver
000057844 951__ $$a2020-02-21-13:46:20
000057844 980__ $$aARTICLE