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arXiv · 1201.2996

Reflective terahertz time-domain spectroscopy measurement on the stripe-ordered superconductor La$_{1.84-y}$Nd$_y$Sr$_{0.16}$CuO$_4$

Tyler Miyake·Shinya Miyazaki·Yusuke Sakai·Kiyohisa Tanaka·Shigeki Miyasaka·Setsuko Tajima·Masayoshi Tonouchi
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Abstract

We measured reflectivity on static stripe-ordered La$_{1.84-y}$Nd$_y$Sr$_{0.16}$CuO$_4$ (LNSCO) $y$\,=\,0.1, 0.2, 0.3, and 0.4 by means of reflective terahertz time-domain spectroscopy (THz-TDS) with electric field polarized along c-axis, in which one can obtain lower frequency information than the conventional Fourier transform type spectrometer. Recently, two-dimensional superconducting (2DSC) property \cite{tajima,schafgans,li}, intra-layer perfect conductivity not accompanied with inter-layer superconducting behavior, was reported on LNSCO ($x$\,=0.15\,,\,$y$\,$\geq$\,0.2). We observed the existence of Josephson plasma edge, which suggests that 2DSC is not realized in these compounds.

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Tyler Miyake, Shinya Miyazaki, Yusuke Sakai, Kiyohisa Tanaka, Shigeki Miyasaka, Setsuko Tajima, Masayoshi Tonouchi. 2012-01-14. Reflective terahertz time-domain spectroscopy measurement on the stripe-ordered superconductor La$_{1.84-y}$Nd$_y$Sr$_{0.16}$CuO$_4$. https://doi.org/10.1143/jpsjs.81sb.sb034

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