From the 1 of 8 linked papers with an AI index.
8 papers
Magnetic-Field-Driven Dimensional Reduction in a Quantum Antiferromagnet
Subhankar Khatua, Marcin Raczkowski, Jeroen van den Brink +1
Low dimensionality enhances quantum fluctuations, triggering novel states of quantum matter to emerge. In real materials, low dimensionality usually arises from spatially strongly…
Thermal spin transport in easy-planar -wave altermagnets controlled by magnetic field
Yuliia I. Gusieva, Kostiantyn V. Yershov, Jeroen van den Brink +1
The paper studies how magnons in an easy‑planar d‑wave altermagnet (e.g., NiF₂) acquire a momentum‑dependent magnetic moment, enabling a thermal magnon‑driven spin current that can…
Nonlinear Magnon Magnetic Moment Transport in Triangular-Lattice f-Wave Antialtermagnets
Volodymyr P. Kravchuk, Kostiantyn V. Yershov, Bastián Pradenas +7
We study the spin excitations in the frustrated coplanar 120-degree ground state of the triangular-lattice Heisenberg antiferromagnet and demonstrate that they carry a magnetic mom…
Feynman paradox in a spherical axion insulator
Anastasiia Chyzhykova, Jeroen van den Brink, Flavio S. Nogueira
We show that a small charged probe near a spherical topological insulator causes the latter to rotate around a symmetry axis defined by the center of the sphere and the position of…
Real critical exponents from the -expansion in an interacting model with non-Hermitian anisotropy
Eduard Naichuk, Jeroen van den Brink, Flavio S. Nogueira
In quantum optics and condensed matter physics non-Hermitian phenomena are often studied under the assumption of an open physical system. However, there are examples of intrinsical…
Revealing altermagnetic Fermi surfaces with two Kondo impurities
Qiong Qin, Toshihiro Sato, Marcin Raczkowski +3
Motivated by recent advances in the study of altermagnetism, or unconventional magnetism, and in the realization and manipulation of two-impurity Kondo physics in real materials, w…