SYNTHESIS AND PROPERTIES OF CD1-XMNXS DILUTED MAGNETIC SEMICONDUCTOR ULTRAFINE PARTICLES

Authors
BANDARANAYAKE RJ LIN JY JIANG HX SORENSEN CM
Citation
Rj. Bandaranayake et al., SYNTHESIS AND PROPERTIES OF CD1-XMNXS DILUTED MAGNETIC SEMICONDUCTOR ULTRAFINE PARTICLES, Journal of magnetism and magnetic materials, 169(3), 1997, pp. 289-302
Citations number
34
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
169
Issue
3
Year of publication
1997
Pages
289 - 302
Database
ISI
SICI code
0304-8853(1997)169:3<289:SAPOCD>2.0.ZU;2-T
Abstract
Cd1-xMnxS diluted magnetic semiconductor ultrafine particles with size s in the range 20 to similar to 1200 Angstrom and 0 less than or equal to x less than or equal to 0.5 have been synthesized by using aqueous solution precipitation. We find that size has a significant effect on the magnetic spin-glass (SG) properties of these systems. The SG free zing temperature T-f decreases with size, and there is a minimum size below which the SG does not form. The field dependence of T-f and the relaxation of the isothermal remanent magnetization are also significa ntly different than in the bulk.