82 citations · 233 across the 8 of their papers we have counts for
18 papers
Multi-Center Magnon Excitations Open the Entire Brillouin Zone to Terahertz Magnetometry of Quantum Magnets
Tobias Biesner, Seulki Roh, Aleksandar Razpopov +14
Due to the small photon momentum, optical spectroscopy commonly probes magnetic excitations only at the center of the Brillouin zone; however, there are ways to override this restr…
Magnetic terahertz resonances above the Néel temperature in the frustrated kagome antiferromagnet averievite
Tobias Biesner, Seulki Roh, Andrej Pustogow +3
Time-domain magneto-THz spectroscopy is utilized to study the frustrated magnet averievite CuZnVO(CsCl). Pronounced THz resonances are observed in unsubstitu…
Rise and Fall of Landau's Quasiparticles While Approaching the Mott Transition
Andrej Pustogow, Yohei Saito, Anja Löhle +5
Landau suggested that the low-temperature properties of metals can be understood in terms of long-lived quasiparticles with all complex interactions included in Fermi-liquid parame…
Gapped magnetic ground state in quantum-spin-liquid candidate -(BEDT-TTF)-Cu(CN)
Björn Miksch, Andrej Pustogow, Mojtaba Javaheri Rahim +6
Geometrical frustration, quantum entanglement and disorder may prevent long-range order of localized spins with strong exchange interactions, resulting in a novel state of matter.…
Lattice dynamics in the spin-1/2 frustrated kagome compound herbertsmithite
Ying Li, A. Pustogow, M. Bories +4
We investigate the lattice dynamics in the spin-1/2 frustrated kagome compound herbertsmithite ZnCu(OH)Cl by a combination of infrared spectroscopy measurements and ab…
Bandwidth-tuning from insulating Mott quantum spin liquid to Fermi liquid via chemical substitution in -[(BEDT-TTF)(BEDT-STF)]Cu(CN)
Y. Saito, R. Rösslhuber, A. Löhle +5
The electronic properties of molecular conductors can be readily varied via physical or chemical pressure as it increases the bandwidth W; this enables crossing the Mott insulator-…