Preferential occupation of interface bands in La2/3 Sr 1/3 MnO3 films as seen via angle-resolved photoemission

A. Tebano; A. Orsini; P. G. Medaglia; D. Di Castro; G. Balestrino; B. Freelon; A. Bostwick; Young Jun Chang; G. Gaines; E. Rotenberg; N. L. Saini

doi:10.1103/PhysRevB.82.214407

Preferential occupation of interface bands in La_2/3 Sr _1/3 MnO₃ films as seen via angle-resolved photoemission

A. Tebano, A. Orsini, P. G. Medaglia, D. Di Castro, G. Balestrino, B. Freelon, A. Bostwick, Young Jun Chang, G. Gaines, E. Rotenberg, N. L. Saini

Department of Physics

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

41 Scopus citations

Abstract

We performed in situ angle-resolved photoemission spectroscopy measurements on La_2/3 Sr_1/3 MnO₃ thin and ultrathin films deposited onto SrTiO₃ substrates in order to determine their electronic band structure. We directly identified, in ultrathin films, an enhancement of the occupation of the out-of-plane Mn3d e_g (3 z2 - r2) band at the expense of the in-plane 3d e_g (x2 - y2) band. Such a disproportionate change in orbital occupation is interpreted as the origin of the strong depression of the magnetotransport properties at the interface between manganite films and substrates.

Original language	English
Article number	214407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.82.214407
State	Published - 3 Dec 2010

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Tebano, A., Orsini, A., Medaglia, P. G., Di Castro, D., Balestrino, G., Freelon, B., Bostwick, A., Chang, Y. J., Gaines, G., Rotenberg, E., & Saini, N. L. (2010). Preferential occupation of interface bands in La_2/3 Sr _1/3 MnO₃ films as seen via angle-resolved photoemission. Physical Review B - Condensed Matter and Materials Physics, 82(21), Article 214407. https://doi.org/10.1103/PhysRevB.82.214407

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title = "Preferential occupation of interface bands in La2/3 Sr 1/3 MnO3 films as seen via angle-resolved photoemission",

abstract = "We performed in situ angle-resolved photoemission spectroscopy measurements on La2/3 Sr1/3 MnO3 thin and ultrathin films deposited onto SrTiO3 substrates in order to determine their electronic band structure. We directly identified, in ultrathin films, an enhancement of the occupation of the out-of-plane Mn3d eg (3 z2 - r2) band at the expense of the in-plane 3d eg (x2 - y2) band. Such a disproportionate change in orbital occupation is interpreted as the origin of the strong depression of the magnetotransport properties at the interface between manganite films and substrates.",

author = "A. Tebano and A. Orsini and Medaglia, {P. G.} and {Di Castro}, D. and G. Balestrino and B. Freelon and A. Bostwick and Chang, {Young Jun} and G. Gaines and E. Rotenberg and Saini, {N. L.}",

year = "2010",

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doi = "10.1103/PhysRevB.82.214407",

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Tebano, A, Orsini, A, Medaglia, PG, Di Castro, D, Balestrino, G, Freelon, B, Bostwick, A, Chang, YJ, Gaines, G, Rotenberg, E & Saini, NL 2010, 'Preferential occupation of interface bands in La_2/3 Sr _1/3 MnO₃ films as seen via angle-resolved photoemission', Physical Review B - Condensed Matter and Materials Physics, vol. 82, no. 21, 214407. https://doi.org/10.1103/PhysRevB.82.214407

TY - JOUR

T1 - Preferential occupation of interface bands in La2/3 Sr 1/3 MnO3 films as seen via angle-resolved photoemission

AU - Tebano, A.

AU - Orsini, A.

AU - Medaglia, P. G.

AU - Di Castro, D.

AU - Balestrino, G.

AU - Freelon, B.

AU - Bostwick, A.

AU - Chang, Young Jun

AU - Gaines, G.

AU - Rotenberg, E.

AU - Saini, N. L.

PY - 2010/12/3

Y1 - 2010/12/3

N2 - We performed in situ angle-resolved photoemission spectroscopy measurements on La2/3 Sr1/3 MnO3 thin and ultrathin films deposited onto SrTiO3 substrates in order to determine their electronic band structure. We directly identified, in ultrathin films, an enhancement of the occupation of the out-of-plane Mn3d eg (3 z2 - r2) band at the expense of the in-plane 3d eg (x2 - y2) band. Such a disproportionate change in orbital occupation is interpreted as the origin of the strong depression of the magnetotransport properties at the interface between manganite films and substrates.

AB - We performed in situ angle-resolved photoemission spectroscopy measurements on La2/3 Sr1/3 MnO3 thin and ultrathin films deposited onto SrTiO3 substrates in order to determine their electronic band structure. We directly identified, in ultrathin films, an enhancement of the occupation of the out-of-plane Mn3d eg (3 z2 - r2) band at the expense of the in-plane 3d eg (x2 - y2) band. Such a disproportionate change in orbital occupation is interpreted as the origin of the strong depression of the magnetotransport properties at the interface between manganite films and substrates.

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U2 - 10.1103/PhysRevB.82.214407

DO - 10.1103/PhysRevB.82.214407

M3 - Article

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SN - 1098-0121

VL - 82

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 21

M1 - 214407

ER -

Preferential occupation of interface bands in La_2/3 Sr _1/3 MnO₃ films as seen via angle-resolved photoemission

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