Asymmetric orbital-lattice interactions in ultrathin correlated oxide films

J. Chakhalian; J. M. Rondinelli; Jian Liu; B. A. Gray; M. Kareev; E. J. Moon; N. Prasai; J. L. Cohn; M. Varela; I. C. Tung; M. J. Bedzyk; S. G. Altendorf; F. Strigari; B. Dabrowski; L. H. Tjeng; P. J. Ryan; J. W. Freeland

doi:10.1103/PhysRevLett.107.116805

Asymmetric orbital-lattice interactions in ultrathin correlated oxide films

J. Chakhalian^*, J. M. Rondinelli, Jian Liu, B. A. Gray, M. Kareev, E. J. Moon, N. Prasai, J. L. Cohn, M. Varela, I. C. Tung, M. J. Bedzyk, S. G. Altendorf, F. Strigari, B. Dabrowski, L. H. Tjeng, P. J. Ryan, J. W. Freeland

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

154 Scopus citations

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.

Original language	English (US)
Article number	116805
Journal	Physical review letters
Volume	107
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.107.116805
State	Published - Sep 9 2011

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ASJC Scopus subject areas

General Physics and Astronomy

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Chakhalian, J., Rondinelli, J. M., Liu, J., 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., & Freeland, J. W. (2011). Asymmetric orbital-lattice interactions in ultrathin correlated oxide films. Physical review letters, 107(11), Article 116805. https://doi.org/10.1103/PhysRevLett.107.116805

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title = "Asymmetric orbital-lattice interactions in ultrathin correlated oxide films",

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.",

author = "J. Chakhalian and Rondinelli, {J. M.} and Jian Liu and Gray, {B. A.} and M. Kareev and Moon, {E. J.} and N. Prasai and Cohn, {J. L.} and M. Varela and Tung, {I. C.} and Bedzyk, {M. J.} and Altendorf, {S. G.} and F. Strigari and B. Dabrowski and Tjeng, {L. H.} and Ryan, {P. J.} and Freeland, {J. W.}",

year = "2011",

month = sep,

day = "9",

doi = "10.1103/PhysRevLett.107.116805",

language = "English (US)",

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Chakhalian, J, Rondinelli, JM, Liu, J, Gray, BA, Kareev, M, Moon, EJ, Prasai, N, Cohn, JL, Varela, M, Tung, IC, Bedzyk, MJ, Altendorf, SG, Strigari, F, Dabrowski, B, Tjeng, LH, Ryan, PJ & Freeland, JW 2011, 'Asymmetric orbital-lattice interactions in ultrathin correlated oxide films', Physical review letters, vol. 107, no. 11, 116805. https://doi.org/10.1103/PhysRevLett.107.116805

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T1 - Asymmetric orbital-lattice interactions in ultrathin correlated oxide films

AU - Chakhalian, J.

AU - Rondinelli, J. M.

AU - Liu, Jian

AU - Gray, B. A.

AU - Kareev, M.

AU - Moon, E. J.

AU - Prasai, N.

AU - Cohn, J. L.

AU - Varela, M.

AU - Tung, I. C.

AU - Bedzyk, M. J.

AU - Altendorf, S. G.

AU - Strigari, F.

AU - Dabrowski, B.

AU - Tjeng, L. H.

AU - Ryan, P. J.

AU - Freeland, J. W.

PY - 2011/9/9

Y1 - 2011/9/9

N2 - 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.

AB - 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.

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Asymmetric orbital-lattice interactions in ultrathin correlated oxide films

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