Electron spin resonance study of laser‐annealed (Zn,Mn)O ceramics
Electron spin resonance study of laser‐annealed (Zn,Mn)O ceramics
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激光退火 (Zn,Mn)O 陶瓷的电子自旋共振研究
DOI：
10.1063/1.105243
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发表时间：
1991
影响因子：
4
通讯作者：
M. Sumita
中科院分区：
文献类型：
--
作者：
K. Kawano;R. Nakata;M. Sumita
用电子自旋共振（ESR）方法研究了脉冲激光退火对（Zn，Mn）O陶瓷的影响。用Nd：YAG脉冲激光（λ=1.064 μm，5-7 J/cm ~ 2）退火后，ESR谱发生了显著变化。这表明，在ZnO中的晶界处的偏析的Mn 2+沉淀物通过通过边界的优先热传导扩散到晶粒中。扫描电子显微镜观察证实了陶瓷内部有足够的熔融特征。
Investigations have been made on the effects of pulse laser annealing on the ceramics (Zn,Mn)O by means of electron spin resonance (ESR) measurements. A remarkable change in the ESR spectrum was observed after annealing by a Nd:YAG pulse laser (λ=1.064 μm, 5–7 J/cm2). It suggests that segregated Mn2+ precipitates at grain boundaries in ZnO are diffused into crystal grains by preferential heat conduction through the boundaries. The scanning electron microscope observation verified enough melting features within the ceramics.