This topical review describes the multitude of unconventional behaviors in the hidden order,
heavy fermion, antiferromagnetic and superconducting phases of the intermetallic …

The recently discovered layered kagome metals AV 3 Sb 5 (A= K, Rb, and Cs) with
vanadium kagome networks provide a novel platform to explore correlated quantum states …

We present resistivity and thermal-conductivity measurements of superconducting FeSe in
intense magnetic fields up to 35 T applied parallel to the ab plane. At low temperatures, the …

A phase characterized by a spatially modulated order parameter is counter-intuitive because
of the entropy penalty that the modulations incur. Its possible existence in superconductors …

Symmetry breaking beyond a global U (1) phase is the key signature of unconventional
superconductors. As prototypical strongly correlated materials, heavy-fermion metals …

The second layer of He 4 films adsorbed on a graphite substrate is an excellent
experimental platform to study the interplay between superfluid and structural orders. Here …

The Kitaev quantum spin liquid (QSL) on the two-dimensional honeycomb lattice epitomizes
an entangled topological state, where the spins fractionalize into Majorana fermions. This …

With the discovery of charge-density waves (CDWs) in most members of the cuprate high-
temperature superconductors, the interplay between superconductivity and CDWs has …

In superfluid He 3-B confined in a slab geometry, domain walls between regions of different
order parameter orientation are predicted to be energetically stable. Formation of the …

The coupling of spin, charge and lattice degrees of freedom results in the emergence of
novel states of matter across many classes of strongly correlated electron materials. A model …