Macroscopic responses of magnets are often governed by magnetization and, thus, have
been restricted to ferromagnets. However, such responses are strikingly large in the newly …

Complex oxides with 4 d and 5 d transition-metal ions recently emerged as a new paradigm
in correlated electron physics, due to the interplay between spin–orbit coupling and electron …

Describing all aspects of the physics of transition metal compounds, this book provides a
comprehensive overview of this unique and diverse class of solids. Beginning with the basic …

We propose an efficient microscopic design procedure of electronic band structures having
intrinsic spin and momentum dependences in spin-orbit-coupling free antiferromagnets. Our …

The properties of transition metal compounds are largely determined by nontrivial interplay
of different degrees of freedom: charge, spin, lattice, and also orbital ones. Especially rich …

Four types of atomic-scale multipoles (electric, magnetic, magnetic toroidal, and electric
toroidal multipoles) give a complete set to describe arbitrary degrees of freedom for coupled …

We introduce a cluster extension of multipole moments to discuss the anomalous Hall effect
(AHE) in both ferromagnetic (FM) and antiferromagnetic (AFM) states in a unified framework …

Whether a quantum critical point (QCP) lies beneath the superconducting dome has been a
long-standing issue that remains unresolved in many classes of unconventional …

This Colloquium reviews the 25 year quest to understand the continuous (second-order),
mean-field-like phase transition occurring at 17.5 K in URu 2 Si 2. About ten years ago, the …

The multipole moment is an established concept of electrons in solids. Entanglement of spin,
orbital, and sublattice degrees of freedom is described by the multipole moment, and …