222 papers
This study investigates the bulk magnetic properties of distorted square lattice compounds M'-LnTaO4 (Ln = Tb, Dy, Ho, Er), utilizing powder neutron diffraction and specific heat measurements to confirm the crystal structure, identify long-range antiferromagnetic order in TbTaO4 below 2.1 K, observe short-range ordering in DyTaO4, and establish a Kramers doublet ground state in ErTaO4.
This study reveals that applying pressure to the layered antiferromagnet YbMnSb induces a structural phase transition near 3.5 GPa and a semiconductor-to-metal transition above 5 GPa, driven by band gap closure and the stabilization of unconventional magnetic states characterized by short-range spin pairing and incommensurate antiparallel correlations.
This paper investigates the interplay between Kondo correlations, Zeeman splitting, and Cooper-pair effects in nonlocal Andreev transport through a quantum dot coupled to normal and superconducting leads, demonstrating that crossed Andreev reflection is enhanced in the crossover region between Kondo and superconducting regimes and remains robust against magnetic fields within a specific Bogoliubov-rotation angle range.
This paper provides experimental evidence for intrinsic, spin-polarized superconductivity in mesoscopic Fe(Te,Se) rings, characterized by a current-dependent magnetic field and dual flux quantization that is explained by a model combining Rashba coupling with anisotropic out-of-plane interactions.
This paper presents a semiclassical spin dynamics framework for computing thermal Hall conductivity via linear response theory, demonstrating its effectiveness in capturing non-linear magnon interaction effects in chiral ferromagnets and Kitaev magnets beyond simple non-interacting approximations.
This paper provides a microscopic explanation for the unconventional out-of-plane spin polarization in -wave antialtermagnets by linking it to a site-compensated spin density, a mechanism verified through model derivation and *ab initio* calculations on CeNiAsO, while offering a general framework to distinguish between different magnetic orders and guide the design of materials with large spin splitting.
This paper investigates the orbital-Zeeman cross correlation in altermagnets, revealing that while -wave order parameters have limited or magnitude-reducing effects on Rashba metals and topological insulator surfaces, -wave order parameters induce a sign change in Rashba metals and preserve the chemical potential jump magnitude in topological insulators while reducing the overall term.
This paper introduces a novel tensor-network methodology that combines real-space Bethe-Salpeter Hamiltonian encoding with a Chebyshev algorithm to efficiently compute excitonic spectra and bound-exciton spectral functions in super-moiré systems exceeding one billion lattice sites, thereby overcoming the computational limitations of conventional approaches for large-scale quantum matter.
This paper presents the first exact analytic expression for the coherent information of a decohered toric code, rigorously establishing a direct connection between the fundamental error threshold and the criticality of the random bond Ising model without relying on the replica trick.
This study demonstrates that in correlated many-particle systems, increasing disorder strength systematically suppresses residual energy and temperature changes during interaction pulses, thereby enhancing adiabaticity alongside longer pulse durations, with triangular pulse profiles yielding the most adiabatic response.
This paper proposes and validates a method for studying scaling dimensions of three-dimensional conformal field theories using near-term quantum simulators, demonstrating high accuracy with as few as 20 qubits on the Ising model to solve a problem that is currently difficult for classical computers.
This paper investigates the Jaynes-Cummings-Holstein model under anti-adiabatic conditions and demonstrates that strong qubit-phonon coupling, through polaronic dressing, effectively suppresses detuning effects and significantly reduces non-Markovian information backflow compared to the standard Jaynes-Cummings model.
This paper proposes a novel solution to the hyperon puzzle by using the Dyson-Schwinger equation approach to incorporate quantum many-body effects, resulting in a stiff equation of state that supports neutron stars up to 2.59 solar masses while suppressing rapid cooling mechanisms.
This paper introduces an iterative, algorithmic framework that utilizes Dyck paths and Stieltjes-Rogers polynomials to systematically generate all self-energy Feynman diagrams for the single-polaron problem with arbitrary linear coupling, thereby enabling efficient, unbiased diagrammatic Monte Carlo simulations by eliminating stochastic weighting across topologies.
Using soft x-ray absorption spectroscopy, this study reveals that infinite-layer nickelate thin films do not achieve the assumed pure configuration even when maximally reduced, as quantitative analysis shows a persistent nickel $3d2p$ holes, indicating a complex interplay of self-doping and oxygen non-stoichiometry.
This paper reports proof-of-concept magnetocaloric effect measurements in the spin-ice compound HoTiO using radio-frequency resistivity thermometry in ultrahigh magnetic fields up to 120 T, successfully detecting both a giant low-field effect and a high-field crystal-field level crossing.
This study demonstrates that applying compressive uniaxial stress along the [010] direction in the itinerant magnet EuAl enhances antiferromagnetic character and stabilizes helimagnetic phases by modifying Fermi-surface nesting through orthorhombic lattice distortion.
This paper proposes an extended spin-phonon model that interpolates between bond- and site-phonon approaches to successfully reproduce the complex field-induced phase transitions and distinctive thermodynamic properties, such as negative thermal expansion and enhanced magnetocaloric effects, observed in the pyrochlore Heisenberg antiferromagnet.
This study combines first-principles Density Functional Theory calculations with Reduced-Configuration-Space searches and Monte Carlo simulations to derive accurate exchange parameters for the HoAgGe twisted-Kagome spin ice, successfully resolving discrepancies in previous empirical models and providing a precise description of its complex field-dependent phase diagram.
This study characterizes the thermodynamic and magnetotransport properties of single-crystalline ErPdSb, revealing its antiferromagnetic ordering at 1.2 K, semimetallic behavior with a resistivity hump near 70 K, a transition from weak antilocalization to negative magnetoresistance in magnetic fields, and a sizable anomalous Hall effect at low temperatures indicative of Fermi surface reconstruction.