Photoinduced Nonequilibrium Response in Underdoped <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>YBa</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>6</mml:mn><mml:mo>+</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> Probed by Time-Resolved Terahertz Spectroscopy
S. J. Zhang, Z. X. Wang, H. Xiang, X. Yao, Q. M. Liu, L. Y. Shi, T. Lin, T. Dong, D. Wu, N. L. Wang
Abstract
Recent claims of light-induced room-temperature superconductivity in YBa${}_{2}$Cu${}_{3}$O${}_{6+x}$ can be explained instead by the generation of quasiparticles, and the observed optical signatures do not require phonon excitation as reported.
Topics & Concepts
PhononTerahertz radiationSuperconductivityNon-equilibrium thermodynamicsExcitationCondensed matter physicsSpectroscopyMaterials scienceTerahertz spectroscopy and technologyPhysicsOptoelectronicsHigh-temperature superconductivityOptical pumpingPhysics of Superconductivity and MagnetismTopological Materials and PhenomenaOrganic and Molecular Conductors Research