Year2024
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NEW
Antiferromagnetism Induces Dissipationless Transverse Conductivity
2024-7-24
An investigation using high-quality NbMnP crystals demonstrates that the anomalous Hall conductivity arising from antiferromagnetism is dissipationless, as expected from the intrinsic mechanism.
Electronic transport in condensed matter
Magnetic properties in condensed matter
Electronic structure and electrical properties of surfaces and nanostructures
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NEW
d2 Trimer and d3 Tetramer in a Pyrochlore Lattice
2024-7-11
Based on the charge disproportionation of V3+ and V2+, the V3+(d2) trimers and V2+(d3) tetramers in the vanadium pyrochlore lattice of AlV2O4 are described by the orbitally-induced Peierls mechanism.
Dielectric, optical, and other properties in condensed matter
Electron states in condensed matter
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NEW
Structural Rotation and Falsely Chiral Antiferromagnetism: A New Combination Generating Ferrotoroidic State
2024-7-4
The ferrotoroidic state, an exotic state of matter with broken space inversion and time-reversal symmetries, was achieved by combining structural rotation and falsely chiral antiferromagnetism in PbMn2Ni6Te3O18.
Magnetic properties in condensed matter
Dielectric, optical, and other properties in condensed matter
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PICKUP
Understanding Electronic Ordering and Cross Correlations with Multipole Representation
2024-6-12
This study reviews the recent advancements in research of multipole representations for understanding electronic orderings and cross-correlations in materials and presents future research directions.
Magnetic properties in condensed matter
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Evaluation of the Exchange Stiffness Constants of Itinerant Magnets from the First-Principles Calculations
2024-6-5
Using first-principles calculations, we evaluated the exchange stiffness constants of ferromagnetic metals at finite temperatures. The constants can be used as parameters in the Landau–Lifshitz–Gilbert equation.
Electron states in condensed matter
Structure and mechanical and thermal properties in condensed matter
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Microscopic Exploration of Electronic States in Nickelate Superconductors
2024-5-31
The multilayered nickelates, La3Ni2O7 and La4Ni3O10 , were investigated using nuclear magnetic resonance (NMR) at ambient pressure. Metallic electronic states under the density wave order were observed microscopically for both compounds.
Magnetic properties in condensed matter
Superconductivity
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Single-Crystal Growth of a Cuprate Superconductor with the Highest Critical Temperature
2024-5-20
Millimeter-sized single crystals of a trilayer cuprate superconductor (Hg,Re)Ba2Ca2Cu3O8+δ that exhibits the highest superconducting transition temperature under ambient pressure, were grown reproducibly and safely.
Superconductivity
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Solving a Stochastic Differential Equation is Solving a Mean-Field Quantum Spin System
2024-5-16
The replica method maps matrix-valued geometric Brownian motion to a mean-field quantum spin system. This correspondence makes it possible to obtain an exact solution for matrix-valued geometric Brownian motion.
Statistical physics and thermodynamics
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Magnetic properties in condensed matter
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Cooking in Salt for Ultra-Clean Superconductor UTe2
2024-4-30
A new crystal growth technique, the molten salt flux liquid transport method, was developed to produce high-quality single crystals of spin-triplet superconductor UTe2. This method is promising for exploring the exotic superconductivity of other materials.
Superconductivity
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PICKUP
Exploring Electronic States in BEDT-TTF Organic Superconductors
2024-4-24
This review, published in the Journal of the Physical Society of Japan, provides a comprehensive summary of the electronic states observed in BEDT-TTF type organic superconductors, including metal-insulator transitions, Mottness transitions, non-Fermi liquids, quantum spin liquids, and Bose-Einstein condensation.
Superconductivity
Electronic transport in condensed matter
Magnetic properties in condensed matter
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Conversion of Chiral Phonons into Magnons in Magnets
2024-4-1
A new phenomenon involving the conversion of chiral phonons into magnons is theoretically predicted. The effective magnetic field induced by chiral phonons causes a change in the spin magnetization of magnets.
Electronic transport in condensed matter
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Which is Moving?—Pinning Down the Origin of Fluctuations in Muon Spin Relaxation—
2024-3-28
The study demonstrated that we can distinguish between the diffusion motion of the muon itself and the motion of the surrounding ions in muon spin relaxation.
Structure and mechanical and thermal properties in condensed matter
Cross-disciplinary physics and related areas of science and technology
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Variety of Mechanically Induced Spin Currents in Rashba Systems
2024-3-22
Various types of spin currents, including unconventional types, are generated in Rashba spin-orbit coupled systems by dynamic lattice distortions associated with, for example, surface acoustic waves.
Electronic transport in condensed matter
Magnetic properties in condensed matter
Structure and mechanical and thermal properties in condensed matter
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What Determines the Sign of Spin Current? ~ Theoretical Study of Spin Seebeck Effect in Antiferromagnetic Insulators
2024-3-18
We developed a microscopic theory for the spin Seebeck effect in antiferromagnets, that explains the sign reversal of the spin current at the spin-flop transition point and describes the sorts of dominant carriers.
Electronic transport in condensed matter
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PICKUP
Quantum Mechanics of One-Dimensional Three-Body Contact Interactions
2024-2-13
The quantum mechanical description of topologically nontrivial three-body contact interactions in one dimension is not well understood. This study explores the Hamiltonian description of these interactions using the path-integral formalism.
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Theoretical Particle Physics
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Chiral Anomalies in Organic Dirac Semimetals
2024-2-5
A three-dimensional massless Dirac fermion system exhibiting broken chiral symmetry was successfully realized in organic conductor α-(BEDT-TTF)2I3 under high pressures. Our study detected the chiral anomaly-induced negative magnetoresistance and planar Hall effects and opened new avenues for further advancements in the field.
Electronic transport in condensed matter
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Relation between Mean-Field Theory and Atomic Structures in Chalcogenide Glasses
2024-2-1
The authors conducted various of X-ray and neutron scattering experiments on typical chalcogenide glasses and clarified the relationship between the atomic structure and simple rigidity percolation theory.
Structure and mechanical and thermal properties in condensed matter
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Thermodynamic Property of a CMOS Device beyond Landauer Limit
2024-1-23
Focusing on a CMOS NAND GATE operating in a sub-threshold region, the thermodynamic cost of computation was analyzed in relation to input/output voltages surpassing the Landauer limit.
Statistical physics and thermodynamics
Electronic transport in condensed matter
Cross-disciplinary physics and related areas of science and technology
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Investigating Unitarity Violation of Lee–Wick’s Complex Ghost with Quantum Field Theory
2024-1-19
Theories with fourth-order derivatives like Lee–Wick’s quantum electrodynamics model or quadratic gravity result in complex ghosts above a definite energy threshold that violate unitarity.
Theoretical Particle Physics
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Current Melt Frozen Electrons
2024-1-15
The origin of the current-induced insulator-to-metal transition of samarium monosulfide was explained by the 4f−5d hybridization observed using optical reflectivity and photoelectron spectroscopies.
Dielectric, optical, and other properties in condensed matter
Magnetic properties in condensed matter
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Towards Uncovering the Hidden Order of URu2Si2 Phase Transition
2024-1-11
We propose a chiral charge as the hidden order parameter in URu2Si2 and present experiments to detect it by focusing on breakings of mirror and inversion symmetries at the local uranium ion.
Magnetic properties in condensed matter
Electronic structure and electrical properties of surfaces and nanostructures