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

研究成果: ジャーナルへの寄稿学術誌査読

87 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号073101
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
79
7
DOI
出版ステータス出版済み - 2月 2 2009
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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