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61 papers
Role of alkaline metal in the rare-earth triangular antiferromagnet KYbO
Franziska Grußler, Mamoun Hemmida, Sebastian Bachus +4
We report crystal structure and magnetic behavior of the triangular antiferromagnet KYbO, the A-site substituted version of the quantum spin liquid candidate NaYbO. The rep…
Au4Mn, a localized ferromagnet with strong spin-orbit coupling, long-range ferromagnetic exchange and high Curie temperature
Yangkun He, Zsolt Gercsi, Rui Zhang +8
Metallic Mn-based alloys with a nearest-neighbor Mn-Mn distance greater than 0.4 nm exhibit large, well-localized magnetic moments. Here we investigate the magnetism of tetragonal…
Emergent many-body composite excitations of interacting spin-1/2 trimers
A. K. Bera, S. M. Yusuf, S. K. Saha +4
Understanding exotic forms of magnetism in quantum spin systems is an emergent topic of modern condensed matter physics. Quantum dynamics can be described by particle-like carriers…
Ce and Dy substitutions in NdFeB: site-specific magnetic anisotropy from first-principles
James Boust, Alex Aubert, Bahar Fayyazi +4
A first-principles approach combining density functional and dynamical mean-field theories in conjunction with a quasi-atomic approximation for the strongly localized 4 shell is…
Optically-triggered strain-driven Néel vector manipulation in a metallic antiferromagnet
Vladimir Grigorev, Mariia Filianina, Yaryna Lytvynenko +11
The absence of stray fields, their insensitivity to external magnetic fields, and ultrafast dynamics make antiferromagnets promising candidates for active elements in spintronic de…
Multi-Center Magnon Excitations Open the Entire Brillouin Zone to Terahertz Magnetometry of Quantum Magnets
Tobias Biesner, Seulki Roh, Aleksandar Razpopov +14
Due to the small photon momentum, optical spectroscopy commonly probes magnetic excitations only at the center of the Brillouin zone; however, there are ways to override this restr…