Evidence of Orbital Reconstruction at Interfaces in Ultrathin   La0.67Sr0.33MnO3 Films.

A. Tebano; C. Aruta; Simone Sanna; P.G. Medaglia; G. Balestrino; A.A. Sidorenko; R. De Renzi; G. Ghiringhelli; L. Braicovich; V. Bisogni; N.B. Brookes

doi:10.1103/PhysRevLett.100.137401

Evidence of Orbital Reconstruction at Interfaces in Ultrathin La0.67Sr0.33MnO3 Films.

A. Tebano, C. Aruta, Simone Sanna, P.G. Medaglia, G. Balestrino, A.A. Sidorenko, R. De Renzi, G. Ghiringhelli, L. Braicovich, V. Bisogni, N.B. Brookes

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Linear dichroism (LD) in x-ray absorption, diffraction, transport, and magnetization measurements on
thin La_0.7Sr_0.3MnO₃ films grown on different substrates, allow identification of a peculiar interface effect, related just to the presence of the interface. We report the LD signature of preferential 3d - e_g(3z² - r² occupation at the interface, suppressing the double exchange mechanism. This surface orbital reconstruction is opposite to that favored by residual strain and is independent of dipolar fields, the chemical nature of the substrate and the presence of capping layers.

Original language	English
Article number	137401
Journal	Physical Review Letters
Volume	100
Number of pages	4
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.100.137401
Publication status	Published - 2008
Externally published	Yes

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title = "Evidence of Orbital Reconstruction at Interfaces in Ultrathin La0.67Sr0.33MnO3 Films.",

abstract = "Linear dichroism (LD) in x-ray absorption, diffraction, transport, and magnetization measurements on thin La0.7Sr0.3MnO3 films grown on different substrates, allow identification of a peculiar interface effect, related just to the presence of the interface. We report the LD signature of preferential 3d - eg(3z2 - r2 occupation at the interface, suppressing the double exchange mechanism. This surface orbital reconstruction is opposite to that favored by residual strain and is independent of dipolar fields, the chemical nature of the substrate and the presence of capping layers.",

author = "A. Tebano and C. Aruta and Simone Sanna and P.G. Medaglia and G. Balestrino and A.A. Sidorenko and {De Renzi}, R. and G. Ghiringhelli and L. Braicovich and V. Bisogni and N.B. Brookes",

year = "2008",

doi = "10.1103/PhysRevLett.100.137401",

language = "English",

volume = "100",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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TY - JOUR

T1 - Evidence of Orbital Reconstruction at Interfaces in Ultrathin La0.67Sr0.33MnO3 Films.

AU - Tebano, A.

AU - Aruta, C.

AU - Sanna, Simone

AU - Medaglia, P.G.

AU - Balestrino, G.

AU - Sidorenko, A.A.

AU - De Renzi, R.

AU - Ghiringhelli, G.

AU - Braicovich, L.

AU - Bisogni, V.

AU - Brookes, N.B.

PY - 2008

Y1 - 2008

N2 - Linear dichroism (LD) in x-ray absorption, diffraction, transport, and magnetization measurements on thin La0.7Sr0.3MnO3 films grown on different substrates, allow identification of a peculiar interface effect, related just to the presence of the interface. We report the LD signature of preferential 3d - eg(3z2 - r2 occupation at the interface, suppressing the double exchange mechanism. This surface orbital reconstruction is opposite to that favored by residual strain and is independent of dipolar fields, the chemical nature of the substrate and the presence of capping layers.

AB - Linear dichroism (LD) in x-ray absorption, diffraction, transport, and magnetization measurements on thin La0.7Sr0.3MnO3 films grown on different substrates, allow identification of a peculiar interface effect, related just to the presence of the interface. We report the LD signature of preferential 3d - eg(3z2 - r2 occupation at the interface, suppressing the double exchange mechanism. This surface orbital reconstruction is opposite to that favored by residual strain and is independent of dipolar fields, the chemical nature of the substrate and the presence of capping layers.

U2 - 10.1103/PhysRevLett.100.137401

DO - 10.1103/PhysRevLett.100.137401

M3 - Journal article

C2 - 18517994

SN - 0031-9007

VL - 100

JO - Physical Review Letters

JF - Physical Review Letters

M1 - 137401

ER -

Evidence of Orbital Reconstruction at Interfaces in Ultrathin La0.67Sr0.33MnO3 Films.

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