Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Magnetoabsorption in InSb quantum-well heterostructures

Orr, J., Chuang, K.-C., Nicholas, R., Buckle, L., Emeny, M. and Buckle, Philip Derek 2009. Magnetoabsorption in InSb quantum-well heterostructures. Physical Review B 79 (23) , 235302. 10.1103/PhysRevB.79.235302

Download (355kB) | Preview


Spin-resolved cyclotron resonance is observed in InSb/AlInSb quantum-well heterostructures. Spin-resolved transitions are identified for fields greater than 2.2 T and confirmed by k⋅p modeling. The cyclotron effective mass is calculated for a range of fields up to 11.5 T and is indicative of the strong nonparabolicity in this material. Resonant coupling is observed between the ground and first occupied subbands for normal-incidence excitation. This is explained in the context of conduction band-valance band mixing due to the narrow bandgap. Further resonant coupling is observed via interaction with a hybrid intersubband plasmon-LO phonon mode. This allows a quantitative estimation of the subband spacing and of the electron-phonon interactions in the quantum well.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Additional Information: 9 pp.
Publisher: American Physical Society
ISSN: 1098-0121
Last Modified: 04 Jun 2017 03:09

Citation Data

Cited 10 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics