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Noncollinear Magnetic Configurations in Frustrated Magnets.
ACS Appl Mater Interfaces
January 2025
School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.
The exploration of materials with nanoscale noncollinear configurations has been continuously attracting attention due to the prospective applications in high-performance magnetic devices. Compared to ferromagnetic materials, noncollinear structures in frustrated magnets hold greater research value due to their smaller sizes and unique properties. However, an effective description of the nanoscale noncollinear domain structures in frustrated magnets is lacking.
View Article and Find Full Text PDFQuantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds.
Nat Commun
January 2025
Department of Physics, ETH Zürich, Otto-Stern-Weg 1, 8093, Zürich, Switzerland.
Quantum magnetometers based on spin defects in solids enable sensitive imaging of various magnetic phenomena, such as ferro- and antiferromagnetism, superconductivity, and current-induced fields. Existing protocols primarily focus on static fields or narrow-band dynamical signals, and are optimized for high sensitivity rather than fast time resolution. Here, we report detection of fast signal transients, providing a perspective for investigating the rich dynamics of magnetic systems.
View Article and Find Full Text PDFLanthanide-Germanate Adelite, Co(GeO)(OH) ( = La-Sm), with Edge-Sharing Octahedral Chains of Co Ions: Spin Frustration Expected to Form Cycloids.
Inorg Chem
January 2025
Department of Chemistry, Clemson University, Clemson, South Carolina 29634-0973, United States.
A new series of 222 adelite-type Co(GeO)(OH) ( = La-Sm) single crystals were grown by a high-temperature, high-pressure hydrothermal method (650 °C and 100 MPa). Single-crystal diffraction refinements yielded chiral one-dimensional (1D) chains of Co along the axis with an average 2.98 Å separation between Co centers in the [CoO(OH)] ribbon chains.
View Article and Find Full Text PDFRealizing Intralayer Magnetoelectric Coupling in Two-Dimensional Frustrated Multiferroic Heterostructures.
Nano Lett
January 2025
Department of Physics, Washington University in St. Louis, St. Louis, Missouri 63130, United States.
Recent studies have demonstrated the ability to switch weakly coupled interlayer magnetic orders by using electric polarization in insulating van der Waals heterostructures. However, controlling strongly coupled intralayer magnetic orders remains a significant challenge. In this work, we propose that frustrated multiferroic heterostructures can exhibit enhanced intralayer magnetoelectric coupling.
View Article and Find Full Text PDFIdentifying Band Structure Changes of FePS across the Antiferromagnetic Phase Transition.
ACS Nano
November 2024
II. Institute of Physics B and JARA-FIT, RWTH-Aachen University, Aachen 52074, Germany.
Magnetic 2D materials enable interesting tuning options of magnetism. As an example, the van der Waals material FePS, a zig-zag-type intralayer antiferromagnet, exhibits very strong magnetoelastic coupling due to the different bond lengths along different ferromagnetic and antiferromagnetic coupling directions enabling elastic tuning of magnetic properties. The likely cause of the length change is the intricate competition between direct exchange of the Fe atoms and superexchange via the S and P atoms.
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