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Energy Relaxation and Dynamics in the Correlated Metal ${Sr}_{2} {RuO}_{4}$ via Terahertz Two-Dimensional Coherent Spectroscopy

https://doi.org/10.1103/PhysRevLett.134.036501

Barbalas, David; Romero, Ralph; Chaudhuri, Dipanjan; Mahmood, Fahad; Nair, Hari_P; Schreiber, Nathaniel_J; Schlom, Darrell_G; Shen, K. M.; Armitage, N. P. (January 2025, Physical Review Letters)
Revealing Novel Aspects of Light-Matter Coupling by Terahertz Two-Dimensional Coherent Spectroscopy: The Case of the Amplitude Mode in Superconductors

https://doi.org/10.1103/PhysRevLett.132.256903

Katsumi, Kota; Fiore, Jacopo; Udina, Mattia; Romero, Ralph; Barbalas, David; Jesudasan, John; Raychaudhuri, Pratap; Seibold, Goetz; Benfatto, Lara; Armitage, N. P. (June 2024, Physical Review Letters)
Optical investigation of the heavy-fermion normal state in superconducting ${UTe}_{2}$

https://doi.org/10.1103/PhysRevB.106.085125

Mekonen, Sirak M.; Kang, Chang-Jong; Chaudhuri, Dipanjan; Barbalas, David; Ran, Sheng; Kotliar, Gabriel; Butch, Nicholas P.; Armitage, N. P. (August 2022, Physical Review B)

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