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Switchable long-distance propagation of chiral magnonic edge states.
Nat Mater
January 2025
School of Physics and Astronomy, Beijing Normal University, Beijing, China.
The coherent spin waves, magnons, can propagate without accompanying charge transports and Joule heat dissipation. Room-temperature and long-distance spin waves propagating within nanoscale spin channels are considered promising for integrated magnonic applications, but experimentally challenging. Here we report that long-distance propagation of chiral magnonic edge states can be achieved at room temperature in manganite thin films with long, antiferromagnetically coupled spin spirals (millimetre length) and low magnetic Gilbert damping (~3.
View Article and Find Full Text PDFGender-specific correlations between serum lipid profiles and intra-pancreatic fat deposition: a cross-sectional study.
Lipids Health Dis
January 2025
Department of Endocrinology, The Affiliated Hospital of Guizhou Medical University, No. 28 Guiyi Street, Guiyang, 550004, China.
Background: Intra-pancreatic fat deposition (IPFD) is linked to metabolic and pancreatic diseases. MRI, while precise, is not cost-effective for routine IPFD screening, highlighting the need for accessible biomarkers. This study aims to analyze the relationships among serum lipid profiles, lipoprotein ratios, and IPFD, with a focus on sex differences.
View Article and Find Full Text PDFOrientation-selective spin-polarized edge states in monolayer NiI.
Nat Commun
December 2024
Institute of Physics, Chinese Academy of Sciences, Beijing, China.
Spin-polarized edge states in two-dimensional materials hold promise for spintronics and quantum computing applications. Constructing stable edge states by tailoring two-dimensional semiconductor materials with bulk-boundary correspondence is a feasible approach. Recently layered NiI is suggested as a two-dimensional type-II multiferroic semiconductor with intrinsic spiral spin ordering and chirality-induced electric polarization.
View Article and Find Full Text PDFEffective Spiral Laser Path for Minimizing Local Heating and Anisotropic Microstructures in Powder Bed Fusion Additive Manufacturing.
3D Print Addit Manuf
December 2024
School of Mechanical Engineering, Pusan National University, Busan, Korea.
Heat accumulation due to repetitive simple laser processing paths during building up a three-dimensional structure is a well-known issue that needs to be settled to reduce the excessively high residual stress and thermal deformation in a powder bed fusion (PBF) additive manufacturing process. Because of the dependency of laser path on the thermal dispersion, it is essential to analyze the heat accumulation phenomenon during laser processing. A computational fluid dynamics (CFD) analysis based on the volume of fraction method is used to optimize the laser path for minimizing the local heating up in the PBF process.
View Article and Find Full Text PDFImpact of antiphospholipid syndrome on placenta and uterine NK cell function: insights from a mouse model.
Sci Rep
December 2024
Laboratory of Molecular and Cellular Immunology, Institute of Molecular Biology NAS RA, 7 Hasratyan Str., Yerevan, 0014, Armenia.
Antiphospholipid syndrome (APS) is associated with recurrent pregnancy morbidity, yet the underlying mechanisms remain elusive. We performed multifaceted characterization of the biological and transcriptomic signatures of mouse placenta and uterine natural killer (uNK) cells in APS. Histological analysis of APS placentas unveiled placental abnormalities, including disturbed angiogenesis, occasional necrotic areas, fibrin deposition, and nucleated red blood cell enrichment.
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