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cond-mat.str-el2024

First-Principles Study of the Fermi Surface Topology of CeCuSi

Roxanne M. Tutchton, Jean-Pierre Julien, Qimiao Si +1

Since the discovery of heavy-fermion superconductivity in CeCuSi, the material has attracted great interest particularly with regard to the nature of the superconductin…

cond-mat.str-el2024★ 2 cited

Cubic Dirac Semimetals: General Theory and Application to Rare-Earth Magnets

Shouvik Sur, Chandan Setty

Rare-earth magnets with parent cubic symmetry exhibit unique topological properties. However, the origin of these behaviors remains presently unclear. Here, we develop minimal mode…

cond-mat.str-el2024★ 9 cited

Vacancy-induced suppression of CDW order and its impact on magnetic order in kagome antiferromagnet FeGe

Mason L. Klemm, Saif Siddique, Yuan-Chun Chang +16

Two-dimensional (2D) kagome lattice metals are interesting because they display flat electronic bands, Dirac points, Van Hove singularities, and can have interplay between charge d…

cond-mat.str-el2024★ 3 cited

Spin Excitation Continuum in the Exactly Solvable Triangular-Lattice Spin Liquid CeMgAl11O19

Bin Gao, Tong Chen, Chunxiao Liu +17

In magnetically ordered insulators, elementary quasiparticles manifest as spin waves - collective motions of localized magnetic moments propagating through the lattice - observed v…

cond-mat.str-el2024★ 18 cited

Superconductivity in twisted WSe from topology-induced quantum fluctuations

Fang Xie, Lei Chen, Shouvik Sur +3

Recently, superconductivity has been observed in twisted WSe moiré structures (Xia et al., Nature 2024; Guo et al., Nature 2025). Its transition temperature is high, reaching a…

cond-mat.str-el2024★ 12 cited

Search for orbital magnetism in the kagome superconductor using neutron diffraction

William Liège, Yaofeng Xie, Dalila Bounoua +7

As many Kagome metals, the topological superconductor AVSb with (A = K,Rb,Cs) hosts a charge density wave . A related chiral flux phase that breaks the time-reversal symmet…

cond-mat.str-el2024★ 3 cited

Topological Kondo semimetals emulated in hetero-bilayer transition metal dichalcogenides

Fang Xie, Lei Chen, Yuan Fang +1

The moiré structure of AB-stacked represents a natural platform to realize Kondo lattice models, due to the discrepancy of the bandwidth between the individual…

cond-mat.str-el2024★ 16 cited

Spin Excitations and Flat Electronic Bands in a Cr-based Kagome Superconductor

Zehao Wang, Yucheng Guo, Hsiao Yu Huang +33

In the quest for topology- and correlation-driven quantum states, kagome lattice materials have garnered significant interest for their band structures, featuring flat bands (FBs)…

cond-mat.str-el2024

Non-local optical response of a multi-phased quantum material

Ding Zhang, Gururaj V. Naik

Light-matter interaction in quantum materials presents a new paradigm as light can tip the balance between many competing quantum many-body phases to result in new phenomena. Descr…

cond-mat.str-el2024★ 14 cited

Simulating Spin Dynamics of Supersolid States in a Quantum Ising Magnet

Yi Xu, Juraj Hasik, Boris Ponsioen +1

Motivated by a recent experimental study on the quantum Ising magnet that presented spectroscopic evidence of zero-field supersolidity (Chen e…

cond-mat.str-el2024★ 4 cited

Emergent Topological Semimetal

D. M. Kirschbaum, L. Chen, D. A. Zocco +9

A material's electronic topology, which is generally described via its Bloch states and the associated bandstructure, will be enriched by the presence of interactions. In metallic…

cond-mat.str-el2024★ 5 cited

Magnetic properties of the spiral spin liquid and surrounding phases in the square lattice XY model

Matías G. Gonzalez, Anna Fancelli, Han Yan +1

Spiral spin liquids possess a subextensively degenerate ground-state manifold, represented by a continuum of energy minima in reciprocal space. Since a small change of the spiral s…

cond-mat.str-el2024★ 23 cited

Spin-charge-lattice coupling across the charge density wave transition in a Kagome lattice antiferromagnet

Xiaokun Teng, David W. Tam, Lebing Chen +9

Understanding spin and lattice excitations in a metallic magnetic ordered system form the basis to unveil the magnetic and lattice exchange couplings and their interactions with it…

cond-mat.str-el2024★ 10 cited

Emergent photons and fractionalized excitations in a quantum spin liquid

Bin Gao, Félix Desrochers, David W. Tam +6

A quantum spin liquid (QSL) arises from a highly entangled superposition of many degenerate classical ground states in a frustrated magnet, and is characterized by emergent gauge f…

cond-mat.str-el2024★ 9 cited

Tunability of charge density wave in a magnetic kagome metal

Ji Seop Oh, Ananya Biswas, Mason Klemm +7

The discovery of the charge density wave order (CDW) within a magnetically ordered phase in the kagome lattice FeGe has provided a promising platform to investigate intertwined deg…

cond-mat.str-el2024★ 2 cited

Quantum Fisher information in a strange metal

Federico Mazza, Sounak Biswas, Xinlin Yan +5

A strange metal is an exotic state of correlated quantum matter; intensive efforts are ongoing to decipher its nature. Here we explore whether the quantum Fisher information (QFI),…

cond-mat.str-el2024★ 14 cited

Charge Dynamics of an Unconventional Three-Dimensional Charge Density Wave in Kagome FeGe

Shaohui Yi, Zhiyu Liao, Qi Wang +10

We report on the charge dynamics of kagome FeGe, an antiferromagnet with a charge density wave (CDW) transition at K, using polarized infrared spectro…

cond-mat.str-el2024★ 10 cited

Electron correlations in the kagome flat band metal

Fang Xie, Yuan Fang, Ying Li +7

Kagome metals offer a unique platform for investigating robust electron-correlation effects because of their lattice geometry, flat bands and multi-orbital nature. In the cases wit…

cond-mat.str-el2024

Particle-hole asymmetric phases in doped twisted bilayer graphene

Run Hou, Shouvik Sur, Lucas K. Wagner +1

Despite much theoretical work, developing a comprehensive ab initio model for twisted bilayer graphene (TBG) has proven challenging due to the inherent trade-off between accurately…

cond-mat.str-el2024★ 7 cited

Amplified multipartite entanglement witnessed in a quantum critical metal

Yuan Fang, Mounica Mahankali, Yiming Wang +4

Strong correlations in matter promote a landscape of quantum phases and associated quantum critical points. For metallic systems, there is increasing recognition that the quantum c…

cond-mat.str-el2024★ 4 cited

Human-machine collaboration: ordering mechanism of rank-2 spin liquid on breathing pyrochlore lattice

Nicolas Sadoune, Ke Liu, Han Yan +3

Machine learning algorithms thrive on large data sets of good quality. Here we show that they can also excel in a typical research setting with little data of limited quality, thro…

cond-mat.str-el2024★ 5 cited

Thermodynamics of the dipole-octupole pyrochlore magnet CeHfO in applied magnetic fields

Anish Bhardwaj, Victor Porée, Han Yan +7

The recently discovered dipole-octupole pyrochlore magnet CeHfO is a promising three-dimensional quantum spin liquid candidate which shows no signs of ordering at low t…

cond-mat.str-el2024★ 6 cited

Linear combinations of cluster mean-field states applied to spin systems

Athanasios Papastathopoulos-Katsaros, Thomas M. Henderson, Gustavo E. Scuseria

We present an innovative cluster-based method employing linear combinations of diverse cluster mean-field (cMF) states, and apply it to describe the ground state of strongly-correl…

cond-mat.str-el2024

In-plane anisotropic magnetoresistance in detwinned ( = 0, 0.6)

Kelly J. Neubauer, Mason L. Klemm, Shirin Mozaffari +6

Understanding the magnetoresistance (MR) of a magnetic material forms the basis for uncovering the orbital mechanisms and charge-spin interactions in the system. Although the paren…