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用能带理论研究了Cu(111)、Cu(110)和Cu(100)表面的振动弛豫。结果表明,第一内层间距为2.073±0.008(收缩0.53%±0.008)[对Cu(111)],1.25±0.01(收缩2.2%±0.01[对Cu(110)],1.815±0.001(膨胀0.55%±0.001)[对Cu(100)];而第二内层间距为2.15±0.01(膨胀2.2%±0.01[对Cu(111)],1.32±0.01(膨胀3