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Absence of Type II Coherence Effects in High-Tc Cuprates

Understanding reasons for lack of coherence effects in high-Tc cuprates, including gap anisotropy and dominance of spin fluctuations over quantum particles. This restricts the manifestation of the "coherence peak" due to clean limit electrodynamics. The cuprates still exhibit BCS-like behavior despite the absence of coherence effects.

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Absence of Type II Coherence Effects in High-Tc Cuprates

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  1. Hebel-Slicther Coherence Peak L. C. Hebel and C. P. Slichter, Phys. Rev. 113, 1504 (1959). Type II Coherence Effects Y. Masuda and A. G. Redfield Phys. Rev. 125, 159 (1962) 1/T1 Tc Temperature

  2. Absence of Type II Coherence Effects in Cuprates Y. Kitaoka, et al., J. Phys. Soc. Japan 57, 30 (1988) Reasons for absence of coherence effects in high-Tc cuprates Gap anisotropy Spin fluctuations (not QPs) dominate spin relaxation Clean limit electrodynamics (suppresses “coherence peak”) d s N(E) N(E) E E The absence of “coherence effects” does not rule out a BCS-like description of the cuprates K. Holczer, et al., Phys. Rev. Lett. 67, 152 (1991)

  3. D. M. Ginsburg and M. Tinkham, Phys. Rev. 118, 990 (1960) Type II Coherence Effects R. E. Glover and M. Tinkham, Phys. Rev. 104, 844 (1956)

  4. L. H. Palmer and M. Tinkham, Phys. Rev. 165, 588 (1968)

  5. Type I Coherence Effects Ultrasonic Attenuation R. W. Morse and H. V. Bohm, Phys. Rev. 108, 1094 (1957)

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