Optical study of a tunable-density two-dimensional electron gas in a CdTe/CdZnMgTe single quantum well

Autor:	S. Lovisa, Noel Magnea, K. Saminadayar, R.T. Cox
Rok vydání:	1998
Předmět:	Electron density Condensed matter physics Filling factor Chemistry Exciton Schottky diode Biasing Landau quantization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Inorganic Chemistry Materials Chemistry Atomic physics Fermi gas Quantum well
Zdroj:	Journal of Crystal Growth. :810-813
ISSN:	0022-0248
DOI:	10.1016/s0022-0248(98)80168-1
Popis:	Modulation-doped single quantum wells inserted in a Schottky diode have been fabricated to allow varying the electron density of a two-dimensional electron gas ( n e ) in the CdTe quantum well by applying a reverse bias voltage. The optical transition that creates the negatively charged exciton (X − ) is studied as a function of n e under a magnetic field. At 8 T, the X − absorption grows linearly with n e for Landau level filling factor v v = 1 and decreases linearly when v > 1 back to zero when v = 2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::73ac88ea0cc439df33d14710d5753a60 https://doi.org/10.1016/s0022-0248(98)80168-1 Zobrazit plný text záznamu Full Text from ScienceDirect