INFLUENCE OF S-D EXCHANGE INTERACTION ON UNIVERSAL CONDUCTANCE FLUCTUATIONS IN CD1-XMNXTE-IN

Authors
JAROSZYNSKI J WROBEL J SAWICKI M KAMINSKA E SKOSKIEWICZ T KARCZEWSKI G WOJTOWICZ T PIOTROWSKA A KOSSUT J DIETL T
Citation
J. Jaroszynski et al., INFLUENCE OF S-D EXCHANGE INTERACTION ON UNIVERSAL CONDUCTANCE FLUCTUATIONS IN CD1-XMNXTE-IN, Physical review letters, 75(17), 1995, pp. 3170-3173
Citations number
44
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
75
Issue
17
Year of publication
1995
Pages
3170 - 3173
Database
ISI
SICI code
0031-9007(1995)75:17<3170:IOSEIO>2.0.ZU;2-C
Abstract
We present millikelvin studies of diffusive charge transport in submic ron wires of n(+)-CdTe and n(+)-Cd0.99Mn0.01Te epilayers. In contrast to expectations, the paramagnetic Mn impurities leave a mean amplitude of reproducible magnetoconductance fluctuations unchanged but decreas e the fluctuation correlation field. These findings are interpreted by invoking a new driving mechanism of the magnetoconductance fluctuatio ns-the redistribution of the electrons between energy levels of the sy stem, induced by the giant s-d exchange spin splitting.