Nanoscale ferromagnetic chromium oxide film from gas-phase nanocluster deposition
Journal
Applied Physics Letters
Journal Volume
92
Journal Issue
17
Pages
173112
Date Issued
2008
Author(s)
Chen, Yanping
Ding, Kui
Yang, Ling
Xie, Bo
Song, Fengqi
Wan, Jianguo
Wang, Guanghou
Hana, Min
Abstract
Ferromagnetic film of densely packing chromium oxide nanoparticles has been fabricated by vacuum deposition of chromium oxide clusters at room temperature. The clusters were generated with a magnetron plasma gas aggregation source by introducing a mixture of argon and oxygen as buffer gas. A magnetic hysteresis loop similar to that of bulk CrO2 was observed in a wide temperature range. The rise in the ferromagnetic property of the film was attributed to the nanoscale CrO2 composition. The work demonstrates a simple way to fabricate ferromagnetic films of chromium oxide nanoparticles under high-vacuum compatible low temperature condition.
Type
journal article