Spatial imaging of two-dimensional electronic states in semiconductor quantum wells

K. Suzuki; K. Kanisawa; C. Janer; S. Perraud; K. Takashina; T. Fujisawa; Y. Hirayama

doi:10.1103/PhysRevLett.98.136802

Spatial imaging of two-dimensional electronic states in semiconductor quantum wells

K. Suzuki, K. Kanisawa, C. Janer, S. Perraud, K. Takashina, T. Fujisawa, Y. Hirayama

理学研究科・物理学専攻

研究成果: Article › 査読

34 被引用数 (Scopus)

抄録

We measure the spatial distribution of the local density of states (LDOS) at cleaved surfaces of InAs/GaSb isolated quantum wells and double quantum wells (DQWs) by low-temperature scanning tunneling spectroscopy. Distinct standing wave patterns of LDOS corresponding to subbands are observed. These LDOS patterns and subband energies agree remarkably well with simple calculations with tip-induced band bending. Furthermore, for the DQWs, coupling of electronic states between the quantum wells is also clearly observed.

本文言語	English
論文番号	136802
ジャーナル	Physical Review Letters
巻	98
号	13
DOI	https://doi.org/10.1103/PhysRevLett.98.136802
出版ステータス	Published - 2007 3 28

ASJC Scopus subject areas

Physics and Astronomy(all)

文献へのアクセス

10.1103/PhysRevLett.98.136802

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引用スタイル

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AU - Kanisawa, K.

AU - Janer, C.

AU - Perraud, S.

AU - Takashina, K.

AU - Fujisawa, T.

AU - Hirayama, Y.

PY - 2007/3/28

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