EFFECT OF UNIAXIAL COMPRESSION ON QUANTUM HALL PLATEAUS AND SHUBNIKOV-DE HAAS OSCILLATIONS IN P-TYPE GAAS ALXGA1-XAS HETEROSTRUCTURES/

Authors
HANSEN OP OLSEN JS KRAAK W SAFFIAN B MININA NY SAVIN AM
Citation
Op. Hansen et al., EFFECT OF UNIAXIAL COMPRESSION ON QUANTUM HALL PLATEAUS AND SHUBNIKOV-DE HAAS OSCILLATIONS IN P-TYPE GAAS ALXGA1-XAS HETEROSTRUCTURES/, Physical review. B, Condensed matter, 54(3), 1996, pp. 1533-1536
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
3
Year of publication
1996
Pages
1533 - 1536
Database
ISI
SICI code
0163-1829(1996)54:3<1533:EOUCOQ>2.0.ZU;2-C
Abstract
Quantum Hall effect and Shubnikov-de Haas oscillations in a two-dimens ional hole gas at a p-type GaAs/Al0.5Ga0.5As(001) interface show that under in-plane (110) uniaxial compression a redistribution of carriers between the two spin-split subbands of the heavy-hole ground state ta kes place. At the maximal compression of 2.5 kbar the carrier density of the most populated subband is decreased by 18%, while the total car rier density remains almost unchanged. A decrease of the spin splittin g under the uniaxial compression is proposed.