Quantum phases driven by strong correlations
It has long been thought that strongly correlated systems are adiabatically connected to their
non-interacting counterpart. Recent developments have highlighted the fallacy of this …
non-interacting counterpart. Recent developments have highlighted the fallacy of this …
Electrodynamics of correlated electron materials
Studies of the electromagnetic response of various classes of correlated electron materials
including transition-metal oxides, organic and molecular conductors, intermetallic …
including transition-metal oxides, organic and molecular conductors, intermetallic …
Verifying the Drude response*
By now more than 100 years passed since Paul Drude suggested his highly acclaimed
model of electronic transport. In the form advanced by A. Sommerfeld, the Drude model is …
model of electronic transport. In the form advanced by A. Sommerfeld, the Drude model is …
Bandwidth-controlled Mott transition in κ-(BEDT-TTF) 2 Cu [N (CN) 2] Br x Cl 1− x: Optical studies of correlated carriers
In the two-dimensional organic charge-transfer salts κ-(BEDT-TTF) 2 Cu [N (CN) 2] Br x Cl
1− xa systematic variation in the Br content from x= 0 to 0.9 allows us to tune the Mott …
1− xa systematic variation in the Br content from x= 0 to 0.9 allows us to tune the Mott …
Electrodynamics of electron-doped iron pnictide superconductors: Normal-state properties
The electrodynamic properties of Ba (Fe 0.92 Co 0.08) 2 As 2 and Ba (Fe 0.95 Ni 0.05) 2 As
2 single crystals have been investigated by reflectivity measurements in a wide frequency …
2 single crystals have been investigated by reflectivity measurements in a wide frequency …
Broadband microwave spectroscopy in Corbino geometry for temperatures down to 1.7 K
We present a broadband microwave spectrometer covering the range from 45 MHz up to 20
GHz (in some cases up to 40 GHz) which employs the Corbino geometry, meaning that the …
GHz (in some cases up to 40 GHz) which employs the Corbino geometry, meaning that the …
A review of uranium-based thin films
Thin films based on silicon and transition-metal elements dominate the semi-conducting
industry and are ubiquitous in all modern devices. Films have also been produced in the …
industry and are ubiquitous in all modern devices. Films have also been produced in the …
Measurement of Two Low-Temperature Energy Gaps in the Electronic Structure <?format ?>of Antiferromagnetic Using Ultrafast Optical Spectroscopy
Ultrafast optical spectroscopy is used to study the antiferromagnetic f-electron system USb 2.
We observe the opening of two charge gaps at low temperatures (<? format?>≲<? format?> …
We observe the opening of two charge gaps at low temperatures (<? format?>≲<? format?> …
Time-resolved collapse and revival of the Kondo state near a quantum phase transition
One of the most successful paradigms of many-body physics is the concept of quasiparticles:
excitations in strongly interacting matter behaving like weakly interacting particles in free …
excitations in strongly interacting matter behaving like weakly interacting particles in free …
Optical signatures of momentum-dependent hybridization of the local moments and conduction electrons in Kondo lattices
An analysis of the optical properties of heavy fermion compounds is reported. We focus on
the 1-1-5 series, where strong deviations of the spectra are seen from the predictions of the …
the 1-1-5 series, where strong deviations of the spectra are seen from the predictions of the …