EXCITON MOTION IN LARGE MAGNETIC-FIELD GRADIENTS

Citation
F. Piazza et al., EXCITON MOTION IN LARGE MAGNETIC-FIELD GRADIENTS, Physica status solidi. a, Applied research, 164(1), 1997, pp. 591-594
Citations number
3
ISSN journal
00318965
Volume
164
Issue
1
Year of publication
1997
Pages
591 - 594
Database
ISI
SICI code
0031-8965(1997)164:1<591:EMILMG>2.0.ZU;2-0
Abstract
High in-plane magnetic field gradients, as large as 6 x 10(4) T/m, pro duced with a magnetized thin dysprosium stripe, are used to control th e lateral motion of excitons in a 8 nm In0.2Ga0.8As quantum well. By m easuring the exciton photoluminescence (PL) energy and intensity, spat ially resolved with mu m resolution. it is shown that diamagnetic exci tons are forced to regions of low magnetic field, due to the interacti on of the magnetic moment with the non-homogeneous field.