We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Momentum filter using resonant Zener tunneling.
View graph of relations

« Back

Momentum filter using resonant Zener tunneling.

Research output: Contribution to journalJournal article


Article number045316
Journal publication date16/07/2007
JournalPhysical Review B
Original languageEnglish


We consider the formation of a double barrier structure which includes both the valence and conduction bands in an InSb/InAlSb quantum well system and demonstrate basic features of the transport process through this structure, which exhibits Zener tunneling. In particular, we employ an eight-band model and the Landauer-Büttiker formalism [Phys. Rev. B 31, 6207 (1985)] to investigate the transport process which under high confinement involves resonant energy levels due to the induced quasibound states in the valence bands. The mechanism of momentum filtering, taking advantage of resonant Zener tunneling, is shown to give improved performance at elevated temperatures compared with a unipolar double barrier resonant tunneling structure.