Observation of Zero-Magnetic-Field Spin Splitting in a Band-Inverted InAs/InGaSb Quantum Well

Yukio Takahashi; Hiroshi Irie; Takafumi Akiho; Koji Onomitsu; Koji Muraki

Presentation information

Oral presentation

10 Spintronics and Magnetics » 10.4 Semiconductor spintronics, superconductor, multiferroics

[8a-A413-8~12] 10.4 Semiconductor spintronics, superconductor, multiferroics

Fri. Sep 8, 2017 10:45 AM - 12:00 PM A413 (413)

Satoshi Iba(AIST)

11:30 AM - 11:45 AM

▼ [8a-A413-11] Observation of Zero-Magnetic-Field Spin Splitting in a Band-Inverted InAs/InGaSb Quantum Well

〇Yukio Takahashi¹, Hiroshi Irie¹, Takafumi Akiho¹, Koji Onomitsu¹, Koji Muraki¹ (1.NTT BRL)

Keywords:InAs/InGaSb quantum well, quantum capacitance, spin splitting

In a band-inverted InAs/InGaSb quantum well, known as the two-dimensional topological insulator, we observed for the first time a zero-magnetic-field spin splitting of the bulk states by measuring the change in the quantum capacitance.