Heavy-fermion metals exhibit a plethora of low-temperature ordering phenomena,,,. Among
these are the so-called hidden-order phases,,,, that, in contrast to conventional magnetic …

We investigate the magnetic field dependent thermopower, thermal conductivity, resistivity,
and<? format?> Hall effect in the heavy fermion metal YbRh 2 Si 2. In contrast to reports on …

Investigating solids with light gives direct access to charge dynamics, electronic and
magnetic excitations. For heavy fermions, one has to adjust the frequency of the probing …

We report a high-field electron spin resonance study in the sub-THz frequency domain of a
single crystal of Sr 2 IrO 4 that has been recently proposed as a prototypical spin-orbital Mott …

We extend and apply a recent theory of the dynamical spin response of Anderson lattice
systems to interpret electron-spin resonance (ESR) data on YbRh 2 Si 2. Starting within a …

We develop a theoretical basis for understanding the spin relaxation processes in Kondo
lattice systems with heavy fermions as experimentally observed by electron spin resonance …

CeB 6 is a cubic heavy-fermion compound with a Γ 8 ground quartet for which an ESR
signal was observed. All other Ce or Yb compounds displaying an ESR signal have strong …

One of the greatest challenges to Landau's Fermi liquid theory—the standard theory of
metals—is presented by complex materials with strong electronic correlations. In these …

In zero magnetic field, the famous neutron spin resonance in the f-electron superconductor
CeCoIn 5 is similar to the recently discovered exciton peak in the nonsuperconducting CeB …

We study the effect of magnetic fields up to 15 T on the heavy fermion state of YbRh 2 Si 2
via Hall effect and magnetoresistivity measurements down to 50 mK. Our data show …