Magnetocapacitance oscillations dominated by giant Rashba spin orbit interaction in InAs/GaSb quantum wells separated by AlSb barrier

A. S. L. Ribeiro, R. Schott, C. Reichl +2

We observed magnetocapacitance oscillations in InAs/GaSb quantum wells separated by a $20$\,nm AlSb middle barrier. By realizing independent ohmic contacts for electrons in InAs an…