Doping Dependence of the Electric Field Gradient at La Site in La_<2-x>M_xCuO_4(M=Sr,Ba) : La-NQR Study

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概要

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• The nuclear quadrupole resonance (NQR) frequency, ν_Q, of^<139>La in La_<2-x>M_xCuO_4(M=Sr, Ba) was systematically measured in the Sr or Ba content range of 0≦x≦0.20 at 1.4 and 4.2 K in zero field. ν_Q, which is the principal component of the electric field gradient (EFG)tensor, decreases linearly with increasing x for both compounds, showing no appreciable change even around x〜1/8 for Ba doping where the structural phase transition from orthorhombic to tetragonal structure occurs at low temperature.

• 社団法人日本物理学会の論文
• 1995-10-15

著者

• Ohsugi Shigeki

  Department Of Physics Faculty Of Science & Technology Science University Of Tokyo

• Ohsugi Shigeki

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• Ohsugi Shigeki

  Department Of Cardiology Nagoya University Graduate School Of Medicine Nagoya University

• Ohsugi Shigeki

  Department Of Cardiology Nagoya University Graduate School Of Medicine

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• Doping Dependence of the Electric Field Gradient at La Site in La_M_xCuO_4(M=Sr,Ba) : La-NQR Study

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