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固氢掺锂体系锂原子吸收谱的高压研究

DOI: 10.11858/gywlxb.2002.04.007, PP. 276-282

Keywords: 路径积分蒙特卡罗,固氢掺锂体系,锂原子吸收谱,压力

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Abstract:

利用路径积分蒙特卡罗方法,基于Lax的半经典理论谱,研究了在T=5K条件下,压力对固氢掺锂体系锂原子吸收谱的影响。结果表明,随着压力的增加,锂原子吸收谱半宽逐渐增加,而吸收谱的质心谱移随压力的增加,先向高能方向移动,达到最高点以后,又向低能方向移动。对具有低对称性结构的俘获点,压力导致三体吸收谱劈裂为单峰加双峰吸收谱,而且单峰和双峰间的距离随压力升高而增加。

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