In traditional metals, the temperature (T) dependence of electrical resistivity vanishes at low
or high T, albeit for different reasons. Here, we review a class of materials, known as …

The appearance of the Planckian time τ Pl= ℏ/k BT is reviewed in both conventional and
unconventional metals. A pedagogical discussion of the various different timescales …

Strange metals possess highly unconventional electrical properties, such as a linear-in-
temperature resistivity,,,,–, an inverse Hall angle that varies as temperature squared,–and a …

In contrast to conventional Fermi liquids where resistivity scales quadratically with
temperature, unconventional superconductors usually exhibit a normal-state resistivity that …

An understanding of the high-temperature copper oxide (cuprate) superconductors has
eluded the physics community for over thirty years and represents one of the greatest …

While the recent advances in topology have led to a classification scheme for electronic
bands described by the standard theory of metals, a similar scheme has not emerged for …

The signature feature of the 'strange metal'state of high-T c cuprates—its linear-in-
temperature resistivity—has a coefficient α 1 that correlates with T c, as expected were α 1 …

The recent discovery of a nonmagnetic nematic quantum critical point (QCP) in the iron
chalcogenide family FeSe 1-x S x has raised the prospect of investigating, in isolation, the …

A bstract We study the thermo-electric transport coefficients of an extended version of the
Gubser-Rocha model. After reviewing the two relaxation time model from holography and …

According to conventional wisdom, the extraordinary properties of the cuprate high-
temperature superconductors arise from do** a strongly correlated antiferromagnetic …