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

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\,,\,$y$\,$\ge$\,0.2). We observed the existence of Josephson plasma edge, which suggests that 2DSC is not realized in these compounds.

4 pages, 3 figures, accepted to Supplemental issue of the Journal of Physical Society of Japan (JPSJ)

References in corpus (3)

• Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La(1.875)Ba(0.125)CuO(4)
• Stripe order in superconducting La(2-x)Ba(x)CuO(4) for 0.095 <= x <= 0.155
• Breakdown of the universal Josephson relation in spin ordered cuprate superconductors

Cited by in corpus (1)

• Optical Study of the Stripe-Ordered State