Observation of the Transverse Optical Plasmon in SmLa0.8Sr0.2CuO4-d

D. Dulic; A. Pimenov; D. van der Marel; D. M. Broun; S. Kamal; W. N. Hardy; A. A. Tsvetkov; I. M. Sutjaha; R. Liang; A. A. Menovsky; A. Loidl; S. S. Saxena

doi:10.1103/PhysRevLett.86.4144

Observation of the Transverse Optical Plasmon in SmLa0.8Sr0.2CuO4-d

Superconductivity 2019-08-17 v1 Strongly Correlated Electrons

Authors: D. Dulic , A. Pimenov , D. van der Marel , D. M. Broun , S. Kamal , W. N. Hardy , A. A. Tsvetkov , I. M. Sutjaha , R. Liang , A. A. Menovsky , A. Loidl , S. S. Saxena

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Abstract

We present microwave and infrared measurements on SmLa0.8Sr0.2CuO4-d, which are direct evidence for the existence of a transverse optical plasma mode, observed as a peak in the c-axis optical conductivity. This mode appears as a consequence of the existence of two different intrinsic Josephson couplings between the CuO2 layers, one with a Sm2O2 block layer, and the other one with a (La,Sr)O block layer. From the frequencies and the intensities of the collective modes we determine the value of the compressibility of the two dimensional electron fluid in the copper oxygen planes.

Keywords

transverse optical plasmon microwave measurements infrared measurements Josephson coupling CuO2 layers compressibility

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@article{arxiv.cond-mat/0102411,
  title  = {Observation of the Transverse Optical Plasmon in SmLa0.8Sr0.2CuO4-d},
  author = {D. Dulic and A. Pimenov and D. van der Marel and D. M. Broun and S. Kamal and W. N. Hardy and A. A. Tsvetkov and I. M. Sutjaha and R. Liang and A. A. Menovsky and A. Loidl and S. S. Saxena},
  journal= {arXiv preprint arXiv:cond-mat/0102411},
  year   = {2019}
}

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Observation of the Transverse Optical Plasmon in SmLa0.8Sr0.2CuO4-d

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