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cond-mat.str-el2025

Disorder Suppression of Charge Density Waves in the Honeycomb Holstein Model

Guangchao Li, Lifei Zhang, Tianxing Ma +2

The formation of charge-density-wave order in Dirac fermion systems via electron-phonon coupling represents a significant topic in condensed matter physics. In this work, we invest…

cond-mat.str-el2025

High-order coupling as a driver for Mott insulating behavior in Holography

Lin-Yue Bai, René Meyer, Zhen-Hua Zhou

We construct a simple holographic model incorporating higher-order coupling terms for electron self-interactions. It can exhibit typical behavior of a Mott insulator, including a m…

cond-mat.str-el2025

Probing the Critical Behavior of a Sign-Problematic Model with Monte Carlo Simulations

Ye Ling, Yuting Wang, Wenan Guo +1

The sign-problematic generalized Baxter-Wu (GBW) model with asymmetric complex couplings is mapped onto a one-dimensional quantum model. Utilizing the model's exactly known critica…

cond-mat.str-el2025

Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets

Fan Zhang, Nisheeta Desai, Wenan Guo +1

We study the phase diagrams of models of bilayers of square lattices antiferromagnets with SU(2) Heisenberg symmetry that have 2, 4, and 6 spin exchanges. We study tw…

cond-mat.str-el2025★ 3 cited

Pairing Symmetry Crossover from -wave to -wave in a Bilayer Nickelate Driven by Hund's Coupling and Crystal Field Splitting

Yicheng Xiong, Yanmei Cai, Tianxing Ma

The pairing symmetry of the recently discovered bilayer nickelate superconductor LaNiO is a subject of intense debate in condensed matter physics, with the two leading…

cond-mat.str-el2025

Hidden phonon-assisted charge density wave transition in BaFe2Al9 revealed by ultrafast optical spectroscopy

Lei Wang, Mingwei Ma, Jiangxu Li +10

The interplay between electronic and lattice degrees of freedom is fundamental to charge density wave (CDW) formation, yet the microscopic origin often remains elusive. Here, we in…

cond-mat.str-el2025★ 6 cited

Antiferromagnetic ordering and critical behavior induced giant magnetocaloric effect in distorted kagome lattice GdBWO

Zhuoqun Wang, Xueling Cui, Tim Treu +13

We synthesize the high-quality GdBWO single crystal and investigate its lowtemperature magnetic and thermodynamic properties. Below = 1.08 K, the anisotropic beh…

cond-mat.str-el2025

Signatures of three-state Potts nematicity in spin excitations of the van der Waals antiferromagnet FePSe

Weiliang Yao, Viviane Peçanha Antonio, Devashibhai Adroja +6

In two-dimensional (2D) nearly square-lattice quantum materials, electron correlations can induce an electronic nematic phase with twofold rotational () symmetry that profound…

cond-mat.str-el2025

Detecting underlying symmetry-protected topological phases via strange correlators and edge engineering

Zhe Wang, Longye Lu, Shang-Qiang Ning +4

The vast majority of symmetry-protected topological (SPT) states are difficult to detect, which often leads to their misidentification as ordinary or topologically trivial phases.…

cond-mat.str-el2025

Spinon Singlet Pairing: Origin of -Wave Sign Structure in a Partially-Filled Stripe

Jia-Long Wang, Shi-Jie Hu, Xue-Feng Zhang

Significant research advances have led to a consensus that the Fermi-Hubbard model and its extended variants are archetypical frameworks for elucidating the intertwined relationshi…

cond-mat.str-el2025★ 3 cited

The odd-parity altermagnetism: A spin group study

Minghuan Zeng, Zheng Qin, Ling Qin +4

Following recent intensive studies on altermagnetism(ALM) characterized by non-relativistic even-parity spin splitting, realizing unconventional odd-parity magnetism has also attra…

cond-mat.str-el2025★ 4 cited

Breathing-Driven Metal-Insulator Transition in Correlated Kagome Systems

Qingzhuo Duan, Zixuan Jia, Zenghui Fan +4

Inspired by the recent discovery of breathing kagome materials \(\rm Nb_3Cl_8\) and \(\rm Nb_3TeCl_7\), we have explored the influence of the breathing effect on the Hubbard model…

cond-mat.str-el2025★ 25 cited

Design of altermagnetic models from spin clusters

Xingchuan Zhu, Xingmin Huo, Shiping Feng +3

Altermagnetism, a new class of collinear compensated magnetic phase, has garnered tremendous interest because of its rich physics and promising applications. Physical models and ve…

cond-mat.str-el2025

Dual role of stripe phase on superconducting correlation in a bilayer square lattice

Ting Guo, Lufeng Zhang, Tianxing Ma +1

While the stripe phase has been observed not only in monolayer cuprates but also in bilayer cuprates, research on its behavior in bilayer cuprates has been limited. Using constrain…

cond-mat.str-el2025★ 3 cited

Antiferromagnetic Spin Fluctuations and Structural Transition in Cluster Mott Insulator Candidate Nb3Cl8 Revealed by 93Nb- and 35Cl-NMR

Y. Z. Zhou, X. Han, J. Luo +7

Motivated by recent studies of the cluster Mott insulator candidate compound Nb3Cl8, this study performs 93Nb and 35Cl nuclear magnetic resonance (NMR) measurements to investigate…

cond-mat.str-el2025★ 9 cited

Unraveling the origin of Kondo-like behavior in the 3-electron heavy-fermion compound YFeGe

Bing Xu, Rui Liu, Hongliang Wo +7

The heavy fermion (HF) state of -electron systems is of great current interest since it exhibits various exotic phases and phenomena that are reminiscent of the Kondo effect in…

cond-mat.str-el2025★ 3 cited

Continuously varying critical exponents in an exactly solvable long-range cluster XY mode

Tian-Cheng Yi, Chengxiang Ding, Maoxin Liu +2

We investigate a generalized antiferromagnetic cluster XY model in a transverse magnetic field, where long-range interactions decay algebraically with distance. This model can be e…

cond-mat.str-el2025★ 1 cited

Field-induced phase transitions in the Kitaev-Heisenberg model: A sign-problem-free quantum Monte Carlo study and possible application to -RuCl3

Xuan Zou, Shuo Liu, Wenan Guo +1

The frustrated magnet -RuCl3 is one of the prime candidates for realizing a Kitaev quantum spin liquid (QSL). However, the existence of a field-induced intermediate QSL phase in…