Direct kinetic correlation of carriers and ferromagnetism in Co2+: ZnO

• Published in: Physical review letters Vol. 97; no. 3; p. 037203
• Main Authors: Kittilstved, Kevin R, Schwartz, Dana A, Tuan, Allan C, Heald, Steve M, Chambers, Scott A, Gamelin, Daniel R
• Format: Journal Article
• Language: English
• Published: United States 21.07.2006

The hypothesis that high-Curie-temperature ferromagnetism in cobalt-doped ZnO (Co2+: ZnO) is mediated by charge carriers was tested by controlled introduction and removal of the shallow donor interstitial zinc. Using oriented epitaxial Co2+: ZnO films grown by chemical vapor deposition, kinetics mea...