Termination control of the interface dipole in La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) Schottky junctions

Yasuyuki Hikita; Mitsuru Nishikawa; Takeaki Yajima; Harold Y. Hwang

doi:10.1103/PhysRevB.79.073101

Termination control of the interface dipole in La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) Schottky junctions

Yasuyuki Hikita, Mitsuru Nishikawa, Takeaki Yajima, Harold Y. Hwang

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

89 Citations (Scopus)

Abstract

In order to investigate the interface termination dependence of perovskite band alignments, we have studied the Schottky barrier height at La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) heterointerfaces. As the Nb: SrTiO3 semiconductor was varied from TiO2 termination to SrO termination by variable insertion of a SrMnO3 layer, a large systematic increase in the Schottky barrier height was observed. This can be ascribed to the evolution of the interface dipole induced to screen the polar discontinuity at the interface, which gives a large internal degree of freedom for tuning band diagrams in oxides.

Original language	English
Article number	073101
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	79
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.79.073101
Publication status	Published - Feb 2 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.79.073101

Cite this

@article{60c0d133731e43e8ad267189ad5807f7,

title = "Termination control of the interface dipole in La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) Schottky junctions",

abstract = "In order to investigate the interface termination dependence of perovskite band alignments, we have studied the Schottky barrier height at La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) heterointerfaces. As the Nb: SrTiO3 semiconductor was varied from TiO2 termination to SrO termination by variable insertion of a SrMnO3 layer, a large systematic increase in the Schottky barrier height was observed. This can be ascribed to the evolution of the interface dipole induced to screen the polar discontinuity at the interface, which gives a large internal degree of freedom for tuning band diagrams in oxides.",

author = "Yasuyuki Hikita and Mitsuru Nishikawa and Takeaki Yajima and Hwang, {Harold Y.}",

year = "2009",

month = feb,

day = "2",

doi = "10.1103/PhysRevB.79.073101",

language = "English",

volume = "79",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Termination control of the interface dipole in La0.7 Sr0.3 MnO3 /Nb

T2 - SrTiO3 (001) Schottky junctions

AU - Hikita, Yasuyuki

AU - Nishikawa, Mitsuru

AU - Yajima, Takeaki

AU - Hwang, Harold Y.

PY - 2009/2/2

Y1 - 2009/2/2

N2 - In order to investigate the interface termination dependence of perovskite band alignments, we have studied the Schottky barrier height at La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) heterointerfaces. As the Nb: SrTiO3 semiconductor was varied from TiO2 termination to SrO termination by variable insertion of a SrMnO3 layer, a large systematic increase in the Schottky barrier height was observed. This can be ascribed to the evolution of the interface dipole induced to screen the polar discontinuity at the interface, which gives a large internal degree of freedom for tuning band diagrams in oxides.

AB - In order to investigate the interface termination dependence of perovskite band alignments, we have studied the Schottky barrier height at La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) heterointerfaces. As the Nb: SrTiO3 semiconductor was varied from TiO2 termination to SrO termination by variable insertion of a SrMnO3 layer, a large systematic increase in the Schottky barrier height was observed. This can be ascribed to the evolution of the interface dipole induced to screen the polar discontinuity at the interface, which gives a large internal degree of freedom for tuning band diagrams in oxides.

UR - http://www.scopus.com/inward/record.url?scp=60949102196&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=60949102196&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.79.073101

DO - 10.1103/PhysRevB.79.073101

M3 - Article

AN - SCOPUS:60949102196

SN - 1098-0121

VL - 79

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 7

M1 - 073101

ER -

Termination control of the interface dipole in La0.7 Sr0.3 MnO3 /Nb: SrTiO3 (001) Schottky junctions

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this