Spinel ferrite nanocrystals embedded inside ZnO: magnetic, electronic andmagneto-transport properties

Journal Article · Fri Aug 21 00:00:00 EDT 2009 · Physical Review B

OSTI ID:973690

Zhou, Shengqiang; Potzger, K; Xu, Qingyu; Kuepper, K; Talut, G; Marko, D; Mucklich, A; Helm, M; Fassbender, J; Arenholz, E; Schmidt, H

In this paper we show that spinel ferrite nanocrystals (NiFe{sub 2}O{sub 4}, and CoFe{sub 2}O{sub 4}) can be texturally embedded inside a ZnO matrix by ion implantation and post-annealing. The two kinds of ferrites show different magnetic properties, e.g. coercivity and magnetization. Anomalous Hall effect and positive magnetoresistance have been observed. Our study suggests a ferrimagnet/semiconductor hybrid system for potential applications in magneto-electronics. This hybrid system can be tuned by selecting different transition metal ions (from Mn to Zn) to obtain various magnetic and electronic properties.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Advanced Light Source Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 973690
• Report Number(s): LBNL-2647E; TRN: US201006%%1062
• Journal Information: Physical Review B, Journal Name: Physical Review B; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

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FERRITE
FERRITES
HALL EFFECT
HYBRID SYSTEMS
ION IMPLANTATION
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETORESISTANCE
SPINELS
TRANSITION ELEMENTS