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在金刚石压砧装置上,采用电阻和电容测量方法,研究了粒径为15~18nm和80nm的纳米晶Si在室温下、24GPa内的电阻、电容与压力的关系。实验结果表明,它们分别在19~17GPa和14GPa左右发生了金属化相变
The resistance, capacitance and pressure of nanocrystalline Si with particle sizes of 15 ~ 18nm and 80nm at room temperature under 24GPa were studied by means of resistance and capacitance measurements on a diamond anvil device. The experimental results show that they are metallurgical phase transition at about 19 ~ 17GPa and 14GPa respectively