Piezomagnetism couples strain linearly to magnetic order, implying that it can produce and
control magnetization. However, unlike magnetostriction, which couples magnetization …

We propose a concept of noncollinear spin current, whose spin polarization varies in space
even in nonmagnetic crystals. While it is commonly assumed that the spin polarization of the …

The chiral Hamiltonian for twisted graphene bilayers is written as a 2× 2 matrix operator by a
renormalization of the Hamiltonian that takes into account the particle-hole symmetry. This …

Van der Waals magnetic materials are currently of great interest as materials for applications
in future ultrathin nanoelectronics and nanospintronics. Due to weak coupling between …

We present a nonlinear field theory of a three-sublattice hexagonal antiferromagnet. The
order parameter is the spin frame, an orthogonal triplet of vectors related to sublattice …

Magnons and phonons are two fundamental neutral excitations of magnetically ordered
materials which can significantly dominate the low-energy thermal properties. In this work …

We propose and investigate a new platform for the realization of Majorana zero modes in a
thin-film heterostructure composed of an easy-plane ferromagnet and a superconductor with …

We theoretically investigate the dynamics of solitons in two sublattice antiferromagnets
under external perturbations, focusing on the effect of Dzyaloshinsky-Moriya (DM) …

Mn 3 X compounds in which the magnetic Mn atoms form AB-stacked kagome lattices have
received a tremendous amount of attention since the observation of the anomalous Hall …

We measure the full elastic tensors of Mn 3 Ge and Mn 3 Sn as a function of temperature
through their respective antiferromagnetic phase transitions. Large discontinuities in the bulk …