文献arxiv2026-08-25http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The tunability and twist engineering of van der Waals materials enable the emergence of electronic states not present in individual monolayers. Among them, monolayer 1T-TaS$_2$ is a well-known Mott insulating system, whose star-of-David charge density wave reconstruction realizes an emergent triang…
doi: 10.1021/acs.nanolett.6c01799source:arxiv: 2604.02001
文献arxiv2026-08-25http://creativecommons.org/licenses/by/4.0/
Van der Waals (vdW) layered materials with long-range magnetic order have the potential to enable novel optoelectronic and spintronic applications. Among these, CrSBr is an air-stable, direct band gap semiconductor that hosts interlayer antiferromagnetic order, a highly anisotropic electronic struc…
source:arxiv: 2603.26294
文献arxiv2026-08-25http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Negative refraction provides a route to steer and focus wave energy flow, but it remains difficult to realize for coherent terahertz (THz) phonons. The difficulty stems from conventional dispersion-based mechanisms, which require strongly anisotropic or negative-curvature dispersions, while the lon…
doi: 10.1103/n9zv-9kc5source:arxiv: 2511.03599
文献arxiv2026-08-25http://creativecommons.org/licenses/by/4.0/
Understanding interfacial interactions in two-dimensional heterostructures is crucial for their implementation in future optoelectronic and quantum technologies. Here, we investigate interactions between WSe2 and graphene by comparing 1-5 layer MOCVD-grown WSe2 on graphene/SiC with exfoliated WSe2…
source:arxiv: 2509.08340
文献arxiv2026-08-25http://creativecommons.org/licenses/by/4.0/
Multi-Weyl semimetals (mWSMs) are topological quantum materials whose Weyl nodes carry higher monopole charges and exhibit strongly anisotropic dispersions. We investigate the linear and nonlinear magneto-optical transport of tilted type-I mWSMs with arbitrary monopole charge $J$ within a semiclass…
source:arxiv: 2406.09888
文献arxiv2026-08-25http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While stacking two type-I quantum spin Hall insulators typically results in a trivial insulator, the behavior of the assembly of type-II quantum spin Hall insulators remains unexplored. In this article, based on calculations of a lattice model, we demonstrate that stacking two type-II quantum spin…
doi: 10.1016/j.scib.2026.04.018source:arxiv: 2508.05365
文献arxiv2026-08-25http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Magnetism and topology are two major areas of condensed matter physics. The combination of magnetism and topology gives rise to more novel physical effects, which have attracted strongly theoretical and experimental attention. Recently, the concept of altermagnetism has been introduced, characteriz…
doi: 10.1103/b7cy-vpmrsource:arxiv: 2406.16603
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
Predicting thermal stability during handling and storage is essential for the design of safe and reliable energetic materials. However, experimental measurements vary significantly across laboratories due to differences in protocols and analysis methods, making it difficult to train reliable predic…
source:arxiv: 2608.23874
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
We develop a gauge-invariant theory of higher-order magnon quantum geometry probed by two-magnon Raman circular dichroism (RCD). The Raman operator decomposes into Berry connections, covariant derivatives, and products of Berry connections, giving rise to quantum geometric tensors beyond the quantu…
source:arxiv: 2608.23683
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
The low-temperature density-wave state of La$_3$Ni$_2$O$_7$ hosts pronounced spin-density-wave (SDW) order, while recent experiments further reveal charge redistribution and a concomitant lattice-symmetry lowering. However, the microscopic relationship among spin, charge, and lattice remains unclea…
source:arxiv: 2608.23823
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
In this study, we investigate structural, magnetic, and electronic properties of the copper-ruthenate based oxide double perovskite La$_{2-x}$Sm$_x$CuRuO$_6$ (x = 0, 1, 2), synthesized through the solid-state reaction method. X-ray diffraction analysis reveals that all compounds crystallize in a mo…
source:arxiv: 2608.23741
文献arxiv2026-08-24http://creativecommons.org/licenses/by-nc-sa/4.0/
Efficient generation and control of spin-polarized currents in semiconductors remain central challenges for spin-based electronics, particularly due to impedance mismatch and the reliance on magnetic fields or ferromagnetic contacts. Here, we introduce a materials platform for spectrally programmab…
source:arxiv: 2608.23832
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
Lithium chalcohalide antiperovskites are a promising, non-toxic alternative to lead halide perovskites, with potential as solid electrolytes for Li-ion batteries. we computationally investigate a relatively unexplored anion-interchange mechanism by which cubic Li$_{3}$$AB$ derivatives are obtained…
source:arxiv: 2608.23815
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
Structured light offers a powerful means of controlling light-matter interactions through multiple tunable optical degrees of freedom. Using micromagnetic simulations, we investigate the nucleation of asymmetric bimerons and antibimerons by pulsed Laguerre-Gaussian optical vortices in chiral ferrom…
source:arxiv: 2608.23856
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
Ta2NiSe5 is a quasi-one-dimensional material that exhibits a structural and electronic phase transition from a low-temperature monoclinic (semiconductor) to a high-temperature orthorhombic (semimetal) phase at approximately TC = 326 K. Here, we used variable-temperature scanning tunneling microscop…
source:arxiv: 2608.23438
文献arxiv2026-08-24http://creativecommons.org/licenses/by-nc-sa/4.0/
Ferromagnetic AT6X6 Kagome compounds are a popular class of systems in which quantum magnetism with topological features has been observed. These systems allow easy chemical substitution, creating an opportunity to fine-tune their properties. In this paper, we present electronic-structure and magne…
source:arxiv: 2608.23485
文献arxiv2026-08-24http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Despite the fundamental role of Jahn-Teller effects of first and second order in shaping structural and electronic properties, there is hardly any observation in angle-resolved photoemission of solids. In oxide and halide perovskites, band structure replicas have occasionally been reported as finge…
source:arxiv: 2608.23510
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
Polarization reversal in ferroelectrics arises from the coupled processes of domain nucleation and subsequent growth, yet the governing mechanisms differ fundamentally between classical perovskite oxides and emerging wurtzite ferroelectrics. While switching in perovskites is typically governed by m…
source:arxiv: 2608.23305
文献arxiv2026-08-24http://creativecommons.org/licenses/by/4.0/
Quantum confinement in stoichiometric $\mathrm{Cd}_n\mathrm{Se}_n$ nanoclusters dramatically attenuates electronic screening, driving a delicate, size-dependent competition between quasiparticle self-energy corrections ($Δ_{\mathrm{QP}}$) and exciton binding energies ($E_b$). Here, we present a $GW…
source:arxiv: 2608.23130
文献arxiv2026-08-24http://arxiv.org/licenses/nonexclusive-distrib/1.0/
What a guided beam carries after passing through an all-optically switched magnetic film has not been computed, although such switching has been demonstrated on a silicon nitride waveguide with electrical readout. We close the chain for an integrated Si$_3$N$_4$/GdFeCo element, an 8 nm film on a 60…
source:arxiv: 2608.22969