Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Strained-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Ge</mml:mi><mml:mo>/</mml:mo><mml:mi>SiGe</mml:mi></mml:mrow></mml:math>Quantum Well

• Moriya, Rai

• Sawano, Kentarou

• Hoshi, Yusuke

• Masubuchi, Satoru

• Shiraki, Yasuhiro

• Wild, Andreas

• Neumann, Christian

• Abstreiter, Gerhard

• Bougeard, Dominique

• Koga, Takaaki

• Machida, Tomoki

書誌事項

タイトル別名

• Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Strained-Ge/SiGeQuantum Well

抄録

The spin-orbit interaction (SOI) of a two-dimensional hole gas in the inversion symmetric semiconductor Ge is studied in a strained-Ge/SiGe quantum well structure. We observe weak antilocalization (WAL) in the magnetoconductivity measurement, revealing that the WAL feature can be fully described by the k-cubic Rashba SOI theory. Furthermore, we demonstrate electric field control of the Rashba SOI. Our findings reveal that the heavy hole (HH) in strained Ge is a purely cubic Rashba system, which is consistent with the spin angular momentum mj=±3/2 nature of the HH wave function.

収録刊行物

• Physical Review Letters

  Physical Review Letters 113 (8), 086601-, 2014-08-22

  American Physical Society

キーワード

• General Physics and Astronomy

詳細情報

• CRID: 1050851320429948800
• NII論文ID: 120007044497
• NII書誌ID: AA00773679
• DOI: 10.1103/physrevlett.113.086601
• ISSN: 10797114
• ISSN: 00319007
• HANDLE: 2115/81750
• Web Site: http://link.aps.org/article/10.1103/PhysRevLett.113.086601
• Web Site: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.113.086601/fulltext
• 本文言語コード: en
• 資料種別: journal article
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