Physics – Condensed Matter – Superconductivity
Scientific paper
2012-01-14
Physics
Condensed Matter
Superconductivity
4 pages, 3 figures, accepted to Supplemental issue of the Journal of Physical Society of Japan (JPSJ)
Scientific paper
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.
Miyake Tyler
Miyasaka Shigeki
Miyazaki Shinya
Sakai Yusuke
Tajima Setsuko
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