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THz and Mid-Infrared Linear Dichroism in the High Tc Superconductor La2-xSrxCuO4

Conference ·
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We measure the rotation of the linear polarization of light that is transmitted through a high Tc superconductor film as a function of sample orientation. We observe a linear dichroism signal over the entire probing range from 2 to 230 meV, which is consistent with anisotropic in-plane conductivity. The La2- xSrxCuO4 thin film sample is epitaxially constrained to be tetragonal, so the symmetry breaking is purely electronic.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
DOE Contract Number:
SC0012704
OSTI ID:
2283304
Report Number(s):
BNL-225237-2024-COPA
Resource Relation:
Conference: 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Montreal, QC, Canada, 9/17/2023 - 9/22/2023
Country of Publication:
United States
Language:
English

References (8)

Is Nematicity in Cuprates Real? January 2023
Spontaneous breaking of rotational symmetry in copper oxide superconductors July 2017
Linear dichroism infrared resonance in overdoped, underdoped, and optimally doped cuprate superconductors August 2020
Optical Birefringence and Dichroism of Cuprate Superconductors in the THz Regime April 2014
A global inversion-symmetry-broken phase inside the pseudogap region of YBa2Cu3Oy November 2016
Polar Kerr-Effect Measurements of the High-Temperature YBa 2 Cu 3 O 6 + x Superconductor: Evidence for Broken Symmetry near the Pseudogap Temperature March 2008
Detection and Implications of a Time-Reversal Breaking State in Underdoped Cuprates November 2002
Non-Fermi-liquid states and pairing instability of a general model of copper oxide metals June 1997

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY