cond-mat.str-el papers | Gist.Science

Effects of next-nearest neighbor hopping on the pairing and critical temperatures of the attractive Hubbard model on a square lattice

Using sign-problem-free determinant quantum Monte Carlo simulations, this study demonstrates that introducing next-nearest-neighbor hopping in the attractive Hubbard model on a square lattice can significantly enhance the critical temperature by up to 50% while simultaneously reducing the pseudogap region, offering a viable route to achieve experimentally accessible superconducting temperatures.

Rodrigo A. Fontenele, Natanael C. Costa, Thereza Paiva + 1 more2026-03-05🔬 physics

Effect of Interlayer Stacking on the Electronic Properties of 1 $T$ -TaS $_2$

This study establishes a computational framework linking the random interlayer stacking of mesoscopic 1 $T$ -TaS $_2$ flakes to their complex electronic properties, demonstrating that Hubbard repulsion drives a coexistence of metallic, band, and Mott insulating states that cannot be explained by ordinary band theory.

Nelson Hua, Francesco Petocchi, Henry G. Bell + 3 more2026-03-05🔬 cond-mat.mes-hall

Non-Hermitian Numerical Renormalization Group: Solution of the non-Hermitian Kondo model

The authors develop a non-Hermitian generalization of the numerical renormalization group (NRG) method to non-perturbatively solve the non-Hermitian Kondo model, revealing a novel phase with a stable fixed point and complex eigenspectrum in the pseudogap regime while providing open-source code for further exploration.

Phillip C. Burke, Andrew K. Mitchell2026-03-05⚛️ quant-ph

Emergent Magnetic Structures at the 2D Limit of the Altermagnet MnTe

This study reveals that while atomically thin monolayer and bilayer MnTe lose their bulk altermagnetic properties due to symmetry constraints, they instead exhibit distinct emergent magnetic phases characterized by robust layered antiferromagnetism in bilayers and unprecedented spin-glass-like behavior in monolayers.

Marc G. Cuxart, Roberto Robles, Beatriz Muñiz Cano + 8 more2026-03-05🔬 cond-mat.mtrl-sci

Topological Magneto-optical Kerr Effect without Spin-orbit Coupling in Spin-compensated Antiferromagnet

This study experimentally demonstrates a topological magneto-optical Kerr effect in the noncoplanar antiferromagnet Co1/3TaS2 that arises from real-space scalar spin chirality without relying on spin-orbit coupling or net magnetization, thereby establishing a new mechanism for ultrafast, stray-field-immune opto-spintronic applications.

Camron Farhang, Weihang Lu, Kai Du + 4 more2026-03-05🔬 physics.optics

Time-reversal symmetry breaking superconductivity with electronic glass in nickelate (La, Pr, Sm)3Ni2O7 films

This study reports the discovery of an unprecedented time-reversal symmetry breaking superconducting state accompanied by electronic glass dynamics in epitaxially strained (La, Pr, Sm)₃Ni₂O₇ bilayer nickelate films, evidenced by unconventional magnetoresistance hysteresis, zero-field non-reciprocity, and logarithmically slow resistance relaxations.

Haoran Ji, Zheyuan Xie, Yaqi Chen + 11 more2026-03-05🔬 cond-mat.mes-hall

Bosonization in $R$ -paraparticle Luttinger models

This paper demonstrates that $R$ -paraparticles in one-dimensional Luttinger models exhibit flavor-charge separation and can be bosonized under specific conditions, offering a theoretical pathway to detect these exotic quasiparticles through distinct dispersion profiles in low-temperature systems.

Dennis F. Salinel, Kristian Hauser A. Villegas2026-03-05⚛️ quant-ph

Magnon scattering and transduction in Coulomb-coupled quantum Hall ferromagnets

This paper theoretically demonstrates that Coulomb interactions in quantum Hall ferromagnets enable long-range magnon scattering off point charges and facilitate the transduction of magnons between separate bilayer layers via skyrmions, offering a pathway for all-electrical long-range magnonics.

Alexander Canright, Deepak Iyer, Matthew S. Foster2026-03-05🔬 cond-mat.mes-hall

Integrability of a family of clean SYK models from the critical Ising chain

This paper establishes the integrability of a family of SYK models with uniform $p$ -body interactions by deriving their exact spectra and demonstrating that their underlying R-matrix corresponds to that of the critical transverse-field Ising chain, thereby revealing a profound connection between quantum chaos and statistical mechanics.

Kohei Fukai, Hosho Katsura2026-03-05⚛️ quant-ph

Steady-states and response functions of the periodically driven O(N) scalar field theory

This paper investigates the phase diagram of a periodically driven O(N) scalar field theory coupled to a thermal bath, revealing diverse symmetry-broken states and novel electromagnetic responses such as the Meissner effect, a hybrid "Meissner polariton" mode, and superconducting-like behavior driven by fluctuations.

Oriana K. Diessel, Subir Sachdev, Pietro M. Bonetti2026-03-05🔬 cond-mat.mes-hall

Development of ultra-high efficiency soft X-ray angle-resolved photoemission spectroscopy equipped with deep prior-based denoising method

This paper presents the development of a deep prior-based denoising system integrated into a micro-focused soft X-ray ARPES setup at SPring-8, which effectively removes noise and significantly reduces measurement time to approximately 40 seconds while maintaining high statistical accuracy and energy resolution.

Kohei Yamagami, Yuichi Yokoyama, Yuta Sumiya + 3 more2026-03-05🔬 cond-mat.mtrl-sci

Degenerate coupled-cluster theory

This paper introduces a novel, size-extensive, and convergent degenerate coupled-cluster ( $\Delta$ CC) theory capable of handling arbitrary reference states and a related quasidegenerate variant (QCC) for strong correlation, demonstrating superior accuracy and convergence over existing methods like EOM-CC, CI, and MBGF through high-order implementations.

So Hirata2026-03-05🔬 physics

Symmetry-enforced agreement of Kohn--Sham and many-body Berry phases in the SSH--Hubbard chain

This study demonstrates that in the inversion-symmetric gapped regime of the SSH-Hubbard chain, the Kohn-Sham and many-body Berry phases coincide across all interaction strengths not because the electron density encodes the geometric phase, but due to symmetry-enforced matching of their $\mathbb{Z}_2$ sectors despite the many-body wave function exhibiting a nontrivial geometric response.

Kai Watanabe2026-03-05🔬 cond-mat.mes-hall

Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory

This paper demonstrates that a $\mathbb{Z}_2$ lattice gauge theory on a multi-graph with an odd number of links exhibits symmetry-protected topological order and charge deconfinement via fractionalized solitons, driven by a Peierls-like instability that intertwines gauge flux ordering with bond order waves.

Enrico C. Domanti, Alejandro Bermudez2026-03-05⚛️ quant-ph

A Fermi Surface Driven Spiral Spin Liquid

This study identifies EuAg $_4$ Sb $_2$ as a model material for a Fermi surface-driven spiral spin liquid, where diffuse neutron scattering and Monte Carlo simulations reveal that quasi-2D hole-mediated interactions create a manifold of nearly degenerate spin modulations, offering new design principles for materials with intertwined electronic, magnetic, and topological properties.

Paul M. Neves, Chi Ian Jess Ip, Takashi Kurumaji + 6 more2026-03-05🔬 cond-mat.mes-hall

On the action of non-invertible symmetries on local operators in 3+1d

This paper establishes that finite non-invertible symmetries in 3+1d without topological line operators necessarily act invertibly on local operators, leading to a decomposition of general non-invertible symmetries into invertible actions and gauging interfaces, and deriving necessary conditions for such symmetries to be anomaly-free.

Pavel Putrov, Rajath Radhakrishnan2026-03-05🔬 physics

Kondo driven suppression of charge density wave in Van der Waals material UTe $_3$

This study demonstrates that in the van der Waals material UTe $_3$ , strong Kondo hybridization between U 5 $f$ and Te $p$ states reconstructs the electronic structure and suppresses the charge density wave instability that would otherwise arise from Fermi-surface nesting.

Justin Shotton, Jiahui Zhu, David Martinez + 22 more2026-03-05🔬 physics

Coupled-cluster approach to vibronic effects in resonant inelastic x-ray scattering of quantum materials: Application to a $5d^1$ rhenium oxide

This study demonstrates that the equation-of-motion coupled-cluster (EOM-CC) method accurately predicts the resonant inelastic x-ray scattering (RIXS) spectra of the $5d^1 $rhenium oxide Ba$ _2 $MgReO$ _6 $by successfully capturing the complex interplay of spin-orbit and vibronic couplings, specifically revealing the critical role of$ T_{2g}$ modes in shaping spectral fine structure.

Teruki Matsuzaki, Liviu F. Chibotaru, Maristella Alessio + 1 more2026-03-05🔬 physics

Magnetic Signature of Chiral Phonons Revealed by Neutron Spectroscopy in Ferrimagnetic Fe $_{1.75}$ Zn $_{0.25}$ Mo $_3$ O $_8$

Using neutron spectroscopy, researchers directly detected the magnetic signature of chiral phonons in ferrimagnetic Fe $_{1.75}$ Zn $_{0.25}$ Mo $_3$ O $_8$ below its Curie temperature, revealing strong magnon-phonon coupling and establishing neutron scattering as a powerful tool for probing the magnetic character of these excitations.

Song Bao, Junbo Liao, Zhentao Huang + 13 more2026-03-05🔬 cond-mat.mtrl-sci

X-ray magnetic circular dichroism evidence of intrinsic $d$ -wave altermagnetism in rutile-structure NiF $_2$

This study provides experimental evidence of intrinsic $d$ -wave altermagnetism in rutile-structure NiF $_2$ using X-ray magnetic circular dichroism (XMCD), demonstrating that the observed signal is a superposition of altermagnetic and weak ferromagnetic contributions that can be successfully isolated through specific magnetic field protocols.

Zezhong Li, Kosuke Sakurai, Yiu-Fung Chiu + 13 more2026-03-05🔬 physics

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