Quantum criticality describes the collective fluctuations of matter undergoing a second-order
phase transition at zero temperature. Heavy-fermion metals have in recent years emerged …

Intermetallic compounds containing f-electron elements display a wealth of superconducting
phases, which are prime candidates for unconventional pairing with complex order …

The study of quantum phase transitions that are not clearly associated with broken symmetry
is a major effort in condensed matter physics, particularly in regard to the problem of high …

Angle-resolved photoemission spectroscopy (ARPES) and scanning tunneling microscopy
(STM) have become indispensable tools in the study of correlated quantum materials. Both …

Following the observation of an anomalous Nernst signal in cuprates, the Nernst effect has
been explored in a variety of metals and superconductors during the past few years. This …

This article overviews the development of heavy-fermion superconductivity, notably in such
rare-earth-based intermetallic compounds which behave as Kondo-lattice systems. Heavy …

Strange metal behavior refers to a linear temperature dependence of the electrical resistivity
that is not due to electron–phonon scattering. It is seen in numerous strongly correlated …

The realization of new classes of ground states in strongly correlated electron systems
continues to be a major issue in condensed matter physics. Heavy fermion materials, whose …

The two-fluid model is a phenomenological description of the gradual change of the itinerant
and local characters of f-electrons with temperature and other tuning parameters and has …

The low-temperature thermal expansion of CeCoIn 5 single crystals measured parallel and
perpendicular to magnetic fields B oriented along the c axis yields the volume thermal …