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Magnetism depending on carrier in (Zn, Co)O

 
: Lee, H.-J.; Nam, H.H.; Cho, Y.C.; Kim, S.K.; Park, C.H.; Cho, C.-R.; Jeong, S.-Y.

:

epl. A letters journal exploring the frontiers of physics 78 (2007), Nr.1, Art. 17001, 4 S.
ISSN: 0302-072X
ISSN: 0295-5075
ISSN: 1286-4854
Englisch
Zeitschriftenaufsatz
Fraunhofer IGB ()

Abstract
The ferromagnetic properties of (Zn, Co)O were observed by a magnetometer at low temperatures. This is, however, inconsistent with the results from the magneto-optical measurements. They reflect the presence of Co metal precipitates in (Zn, Co)O. On the other hand, the formation of Co metal precipitates was strongly suppressed by the additional Cu doping. It appears that the formation of Co metal precipitates is related to the carrier concentration in the system.

: http://publica.fraunhofer.de/dokumente/N-61588.html