The Berry curvature and quantum metric are the imaginary part and real part, respectively, of
the quantum geometric tensor, which characterizes the topology of quantum states. The …

Quantum geometry in condensed-matter physics has two components: the real part quantum
metric and the imaginary part Berry curvature. Whereas the effects of Berry curvature have …

Response properties that are purely intrinsic to physical systems are of paramount
importance in physics research, as they probe fundamental properties of band structures …

Nonlinear responses are actively studied as probes of topology and band geometric
properties of solids. Here, we show that second harmonic generation serves as a probe of …

The layer stacking order in 2D materials strongly affects functional properties and holds
promise for next-generation electronic devices. In bulk, octahedral MoTe2 possesses two …

We propose an intrinsic nonlinear electric spin generation effect, which can dominate in
centrosymmetric magnets. We reveal the band geometric origin of this effect and clarify its …

Quantum geometry plays a pivotal role in the second-order response of PT-symmetric
antiferromagnets. Here we study the nonlinear response of 2D altermagnets protected by C …

Recent experiments reported an antisymmetric planar Hall effect, where the Hall current is
odd in the in plane magnetic field and scales linearly with both electric and magnetic fields …

Berry curvature dipole plays an important role in various nonlinear quantum phenomena.
However, the maximum symmetry allowed for nonzero Berry curvature dipole in the …

It has been theoretically predicted that perturbation of the Berry curvature by electromagnetic
fields gives rise to intrinsic nonlinear anomalous Hall effects that are independent of …