Terahertz control of many-body dynamics in quantum materials

CJ Yang, J Li, M Fiebig, S Pal - Nature Reviews Materials, 2023 - nature.com
Quantum-mechanical phenomena underpin the behaviour of quantum materials at the
microscopic level. The description of several essential properties of these materials …

Optical response of correlated electron systems

DL Maslov, AV Chubukov - Reports on Progress in Physics, 2016 - iopscience.iop.org
Recent progress in experimental techniques has made it possible to extract detailed
information on dynamics of carriers in a correlated electron material from its optical …

Gapped magnetic ground state in quantum spin liquid candidate κ-(BEDT-TTF)2Cu2(CN)3

B Miksch, A Pustogow, MJ Rahim, AA Bardin… - Science, 2021 - science.org
Geometrical frustration, quantum entanglement, and disorder may prevent long-range
ordering of localized spins with strong exchange interactions, resulting in an exotic state of …

Single-Gap Superconductivity and Dome of Superfluid Density in Nb-Doped

M Thiemann, MH Beutel, M Dressel, NR Lee-Hone… - Physical Review Letters, 2018 - APS
SrTiO 3 exhibits a superconducting dome upon doping with Nb, with a maximum critical
temperature T c≈ 0.4 K. Using microwave stripline resonators at frequencies from 2 to 23 …

Observing electron spin resonance between 0.1 and 67 GHz at temperatures between 50 mK and 300 K using broadband metallic coplanar waveguides

Y Wiemann, J Simmendinger, C Clauss… - Applied Physics …, 2015 - pubs.aip.org
We describe a fully broadband approach for electron spin resonance (ESR) experiments,
where it is possible to tune not only the magnetic field but also the frequency continuously …

Low-Energy Electronic Properties of Clean : Elusive Landau Quasiparticles

M Schneider, D Geiger, S Esser, US Pracht, C Stingl… - Physical Review Letters, 2014 - APS
We have prepared high-quality epitaxial thin films of CaRuO 3 with residual resistivity ratios
up to 55. Shubnikov–de Haas oscillations in the magnetoresistance and a T 2 temperature …

Is the optical conductivity of heavy fermion strange metals Planckian?

X Li, J Kono, Q Si, S Paschen - Frontiers in Electronic Materials, 2023 - frontiersin.org
Strange metal behavior appears across a variety of condensed matter settings and beyond,
and achieving a universal understanding is an exciting prospect. The beyond-Landau …

Surface-resistance measurements using superconducting stripline resonators

D Hafner, M Dressel, M Scheffler - Review of Scientific Instruments, 2014 - pubs.aip.org
We present a method to measure the absolute surface resistance of conductive samples at a
set of GHz frequencies with superconducting lead stripline resonators at temperatures 1–6 …

Complete electrodynamics of a BCS superconductor with energy scales: Microwave spectroscopy on titanium at mK temperatures

M Thiemann, M Dressel, M Scheffler - Physical Review B, 2018 - APS
We performed resonant microwave measurements on superconducting titanium (Ti) down to
temperatures of 40 mK, well below its critical temperature T c≈ 0.5 K. Our wide frequency …

Heavy fermion thin films: progress and prospects

S Chatterjee - Electronic Structure, 2021 - iopscience.iop.org
Heavy fermion compounds are a remarkable class of inter-metallic systems, where the
presence of several competing interactions leads to the emergence of a plethora of exotic …