The room temperature ferromagnetism in Co-doped ZnO films with different carrier concentration fabricated by the sol–gel method at different annealing atmospheres was investigated.
用溶胶–凝胶法制备的钴掺杂氧化锌薄膜在不同气氛下退火后均显示室温铁磁性，并且具有不同的载流子浓度。
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With the annealing temperatures increasing, the room temperature resistivity of the films rises at the beginning, then goes down.