000131687 001__ 131687
000131687 005__ 20240219150720.0
000131687 0247_ $$2doi$$a10.1021/jacs.3c04521
000131687 0248_ $$2sideral$$a137168
000131687 037__ $$aART-2023-137168
000131687 041__ $$aeng
000131687 100__ $$aNamba, Morito
000131687 245__ $$aLarge Perpendicular Magnetic Anisotropy Induced by an Intersite Charge Transfer in Strained EuVO2H Films
000131687 260__ $$c2023
000131687 5203_ $$aPerovskite oxides ABO3 continue to be a major focus in materials science. Of particular interest is the interplay between A and B cations as exemplified by intersite charge transfer (ICT), which causes novel phenomena including negative thermal expansion and metal–insulator transition. However, the ICT properties were achieved and optimized by cationic substitution or ordering. Here we demonstrate an anionic approach to induce ICT using an oxyhydride perovskite, EuVO2H, which has alternating layers of EuH and VO2. A bulk EuVO2H behaves as a ferromagnetic insulator with a relatively high transition temperature (TC) of 10 K. However, the application of external pressure to the EuIIVIIIO2H bulk or compressive strain from the substrate in the thin films induces ICT from the EuIIH layer to the VIIIO2 layer due to the extended empty V dxy orbital. The ICT phenomenon causes the VO2 layer to become conductive, leading to an increase in TC that is dependent on the number of carriers in the dxy orbitals (up to a factor of 4 for 10 nm thin films). In addition, a large perpendicular magnetic anisotropy appears with the ICT for the films of <100 nm, which is unprecedented in materials with orbital-free Eu2+, opening new perspectives for applications. The present results provide opportunities for the acquisition of novel functions by alternating transition metal/rare earth layers with heteroanions.
000131687 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000131687 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000131687 700__ $$aTakatsu, Hiroshi
000131687 700__ $$aMikita, Riho
000131687 700__ $$aSijia, Yao
000131687 700__ $$aMurayama, Kantaro
000131687 700__ $$aLi, Hao-Bo
000131687 700__ $$aTerada, Ryo
000131687 700__ $$aTassel, Cédric
000131687 700__ $$aUbukata, Hiroki
000131687 700__ $$aOchi, Masayuki
000131687 700__ $$aSaez-Puche, Regino
000131687 700__ $$0(orcid)0000-0003-3567-7030$$aPalacios Latasa, Elias$$uUniversidad de Zaragoza
000131687 700__ $$aIshimatsu, Naoki
000131687 700__ $$aShiga, Daisuke
000131687 700__ $$aKumigashira, Hiroshi
000131687 700__ $$aKinjo, Katsuki
000131687 700__ $$aKitagawa, Shunsaku
000131687 700__ $$aIshida, Kenji
000131687 700__ $$aTerashima, Takahito
000131687 700__ $$aFujita, Koji
000131687 700__ $$aMashiko, Takeaki
000131687 700__ $$aYanagisawa, Keiichi
000131687 700__ $$aKimoto, Koji
000131687 700__ $$aKageyama, Hiroshi
000131687 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000131687 773__ $$g145, 40 (2023), 21807-21816$$pJ. Am. Chem. Soc.$$tJournal of the American Chemical Society$$x0002-7863
000131687 8564_ $$s4555209$$uhttps://zaguan.unizar.es/record/131687/files/texto_completo.pdf$$yVersión publicada
000131687 8564_ $$s3017828$$uhttps://zaguan.unizar.es/record/131687/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000131687 909CO $$ooai:zaguan.unizar.es:131687$$particulos$$pdriver
000131687 951__ $$a2024-02-19-13:23:36
000131687 980__ $$aARTICLE