Impurity Pinning and Microwave Conductivity of Incommensurate Spin Density Waves

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概要

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• We calculate the microwave conductivity due to the phase mode in an incommen-surate SDW taking into account nonmagnetic impurity effects and long-rangeCoulomb interaction between the phason and quasi-particles. Ills shown that the conductivity is represented in a scaled form by a pinning frequency. The pinning fre-quency of SDW is shown to be comparable to that of CDW because the dynamics ofphason through the phason self-energy gives important contributions on the pinningfrequency and the small parameter p "' which exists in the CDW systemsremarkably suppresses the pinning frequency of CDW. The long-range Coulombeffect on the conductivity is seen as the deviation of the frequency dependence of theconductivity from co' to co' with l/2<cx<3/2 at low frequencies.

• 社団法人日本物理学会の論文
• 1988-10-15

著者

• TAKADA Satoshi

  Institute of Physics,University of Tsukuba

• MIYAZAWA Hiroshi

  NTT Electronics Corporation

• Miyazawa H

  Ntt Electronics Corporation

• NAKANE Yoshinori

  Institute of Physics,University of Tsukuba

• MIYAZAWA Hiroshi

  Seiko Epson Corp.

• Takada Satoshi

  Institute Of Physics University Of Tsukuba

• Nakane Yoshinori

  Institute Of Physics University Of Tsukuba

• Takada Satoshi

  Institute For Solid States Physics University Of Tokyo : Department Of Physics College Of General Education University Of Tokyo

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