Universität zu Köln

Chakhalian, J., Rondinelli, J. M., Liu, Jian ORCID: 0000-0001-7962-2547, Gray, B. A., Kareev, M., Moon, E. J., Prasai, N., Cohn, J. L., Varela, M., Tung, I. C., Bedzyk, M. J., Altendorf, S. G., Strigari, F., Dabrowski, B., Tjeng, L. H., Ryan, P. J. and Freeland, J. W. (2011). Asymmetric Orbital-Lattice Interactions in Ultrathin Correlated Oxide Films. Phys. Rev. Lett., 107 (11). COLLEGE PK: AMER PHYSICAL SOC. ISSN 0031-9007

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Abstract

Using resonant x-ray spectroscopies combined with density functional calculations, we find an asymmetric biaxial strain-induced d-orbital response in ultrathin films of the correlated metal LaNiO3 which are not accessible in the bulk. The sign of the misfit strain governs the stability of an octahedral breathing distortion, which, in turn, produces an emergent charge-ordered ground state with an altered ligand-hole density and bond covalency. Control of this new mechanism opens a pathway to rational orbital engineering, providing a platform for artificially designed Mott materials.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Chakhalian, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rondinelli, J. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Liu, Jian UNSPECIFIED orcid.org/0000-0001-7962-2547 UNSPECIFIED Gray, B. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kareev, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Moon, E. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Prasai, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cohn, J. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Varela, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tung, I. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bedzyk, M. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Altendorf, S. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Strigari, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dabrowski, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tjeng, L. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ryan, P. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Freeland, J. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-489176
DOI:	10.1103/PhysRevLett.107.116805
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	107
Number:	11
Date:	2011
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	0031-9007
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language METAL-INSULATOR-TRANSITION; RNIO3 R; PHASE; PEROVSKITES; ELECTRONICS; INTERFACE; CHARGE; PR; ND Multiple languages Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48917