000120186 001__ 120186 000120186 005__ 20240319081016.0 000120186 0247_ $$2doi$$a10.3390/nano12203646 000120186 0248_ $$2sideral$$a130512 000120186 037__ $$aART-2022-130512 000120186 041__ $$aeng 000120186 100__ $$0(orcid)0000-0003-0271-8713$$aLucas, Irene$$uUniversidad de Zaragoza 000120186 245__ $$aSpin glass state in strained La2/3Ca1/3MnO3 thinfilms 000120186 260__ $$c2022 000120186 5060_ $$aAccess copy available to the general public$$fUnrestricted 000120186 5203_ $$aEpitaxial strain modifies the physical properties of thin films deposited on single-crystal substrates. In a previous work, we demonstrated that in the case of La2/3Ca1/3MnO3 thin films the strain induced by the substrate can produce the segregation of a non-ferromagnetic layer (NFL) at the top surface of ferromagnetic epitaxial La2/3Ca1/3MnO3 for a critical value of the tetragonality τ, defined as τ = |c − a|a, of τC ≈ 0.024. Although preliminary analysis suggested its antiferromagnetic nature, to date a complete characterization of the magnetic state of such an NFL has not been performed. Here, we present a comprehensive magnetic characterization of the strain-induced segregated NFL. The field-cooled magnetic hysteresis loops exhibit an exchange bias mechanism below T ≈ 80 K, which is well below the Curie temperature of the ferromagnetic La2/3Ca1/3MnO3 layer. The exchange bias and coercive fields decay exponentially with temperature, which is commonly accepted to describe spin-glass (SG) behavior. The signatures of slow dynamics were confirmed by slow spin relaxation over a wide temperature regime. Low-energy muon spectroscopy experiments directly evidence the slowing down of the magnetic moments below ~100 K in the NFL. The experimental results indicate the SG nature of the NFL. This SG state can be understood within the context of the competing ferromagnetic and antiferromagnetic interactions of similar energies. 000120186 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E13-17R$$9info:eu-repo/grantAgreement/ES/DGA/E13-20R$$9info:eu-repo/grantAgreement/ES/DGA/E28-20R$$9info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2020-112914RB-100/AEI/10.13039/501100011033$$9info:eu-repo/grantAgreement/ES/UZ/UZCUD2016-CIE-02$$9info:eu-repo/grantAgreement/ES/UZ/UZCUD2017-CIE-02 000120186 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000120186 590__ $$a5.3$$b2022 000120186 592__ $$a0.811$$b2022 000120186 591__ $$aPHYSICS, APPLIED$$b39 / 160 = 0.244$$c2022$$dQ1$$eT1 000120186 593__ $$aChemical Engineering (miscellaneous)$$c2022$$dQ1 000120186 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b51 / 107 = 0.477$$c2022$$dQ2$$eT2 000120186 593__ $$aMaterials Science (miscellaneous)$$c2022$$dQ2 000120186 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b58 / 178 = 0.326$$c2022$$dQ2$$eT1 000120186 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b110 / 343 = 0.321$$c2022$$dQ2$$eT1 000120186 594__ $$a7.4$$b2022 000120186 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000120186 700__ $$0(orcid)0000-0002-5331-9758$$aMarcano, Noelia$$uUniversidad de Zaragoza 000120186 700__ $$aProkscha, Thomas 000120186 700__ $$0(orcid)0000-0002-6761-6171$$aMagén, César$$uUniversidad de Zaragoza 000120186 700__ $$aCorcuera, Rubén 000120186 700__ $$0(orcid)0000-0003-3724-508X$$aMorellón, Luis$$uUniversidad de Zaragoza 000120186 700__ $$0(orcid)0000-0001-9566-0738$$aDe Teresa, José M.$$uUniversidad de Zaragoza 000120186 700__ $$0(orcid)0000-0003-0681-8260$$aIbarra, M. Ricardo$$uUniversidad de Zaragoza 000120186 700__ $$0(orcid)0000-0002-4698-3378$$aAlgarabel, Pedro A. 000120186 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000120186 773__ $$g12, 20 (2022), 3646-3658$$pNanomaterials (Basel)$$tNanomaterials$$x2079-4991 000120186 8564_ $$s765624$$uhttps://zaguan.unizar.es/record/120186/files/texto_completo.pdf$$yVersión publicada 000120186 8564_ $$s2825873$$uhttps://zaguan.unizar.es/record/120186/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000120186 909CO $$ooai:zaguan.unizar.es:120186$$particulos$$pdriver 000120186 951__ $$a2024-03-18-15:38:02 000120186 980__ $$aARTICLE