81 citations · 354 across the 59 of their papers we have counts for
65 papers
Role of Chalcogen-p States in the Optical Response of Bulk PtSe2 and PtTe2
Ji Eun Lee, R. Mathew Roy, Premakumar Yanda +3
The type-II Dirac semimetals PtSe and PtTe are isostructural and isovalent layered compounds but exhibit distinct electronic properties. We measure the in-plane infrared re…
Incoherent Spectral Weight Emerging from a Van Hove Singularity in a Kagome Metal
C. -y. Lim, J. Deng, A. Korshunov +14
Waterfall-like spectral features observed by angle-resolved photoemission spectroscopy (ARPES) are commonly associated with strong electronic correlations or electron-boson couplin…
Geometry-Controlled Chern transfer and Flat Band Reconstruction in distorted kagome lattices
Yu Zhu, Claudia Felser, Xiaolong Feng
Flat band formation and nontrivial topology are central manifestations of kagome electronic structure, yet they are commonly discussed in idealized lattice geometries. In distorted…
Momentum Structure of Superconductivity and Sublattice Effects from Quasiparticle Interference in CsVSb
Aaron G. Greenberg, Xinze Yang, Junze Deng +11
Quantum interference encoded in the sublattice texture of kagome Bloch wavefunctions has been widely invoked as a route to correlated states, including chiral charge order, unconve…
Quantum geometry and critical temperature enhancement in MgB superconductivity
Yi Jiang, Haoyu Hu, Dumitru Călugăru +13
MgB, a phonon-mediated superconductor with record-high critical temperature K, is revisited to obtain a comprehensive theory of electrons, phonons, and their cou…
Interference-Enhanced Large Electron-Phonon Coupling from Raman-active Breathing Modes in Moiré Semiconductors
Ning Mao, Shaozheng Wang, Cheng Xu +6
Superconductivity was recently observed in twisted WSe2 and MoTe2, raising a central question: is the pairing driven by electronic correlations, by phonons, or by both? Answering i…
Symmetry-Selective Stabilization of Charge-Density Wave in ScVSn
A. Korshunov, C. -Y. Lim, J. Corral-Sertal +10
Charge-density-wave (CDW) order in kagome metals is highly sensitive to external tuning parameters such as chemical substitution and hydrostatic pressure, which generally suppress…
Observation of the Magnus Nonlinear Hall effect from Chiral Weyl Monopoles
Heda Zhang, Nikolai Peshcherenko, Ning Mao +4
The nonlinear Hall effect (NLHE) connects crystalline symmetry to quantum geometry, offering a probe of band topology beyond linear transport. While most studies have focused on th…
Revealing magnetism in the distorted kagome TiBi ( = Nd, Sm, Gd) via ARPES and XMCD
C. Lim, F. Ballester, A. Kar +19
Kagome materials are known for hosting emergent quantum phenomena driven by the interaction between different lattice, charge and spin orders. Here, we present a detailed angle res…
Interpretation of Crystal Energy Landscapes with Kolmogorov-Arnold Networks
Gen Zu, Ning Mao, Claudia Felser +1
Characterizing crystalline energy landscapes is essential to predicting thermodynamic stability, electronic structure, and functional behavior. While machine learning (ML) enables…
Quantifying quasiparticle chirality in a chiral topological semimetal
Jiaju Wang, Jaime Sánchez-Barriga, Amit Kumar +17
Recently, the projection of the electron's spin on its crystal momentum has been proposed as a metric to quantify electronic chirality of Bloch states in crystals, which is expecte…
Chiralometer: Direct Torque Detection of Crystal Chirality
Nikolai Peshcherenko, Ning Mao, Claudia Felser +1
Chirality governs phenomena ranging from chemical reactions to the topology of quasiparticle charge carriers. However, a direct macroscopic probe for crystal chirality remains a si…
Anisotropic anomalous Hall effect in distorted kagome GdTi3Bi4
Avdhesh K. Sharma, Bo Tai, Subhajit Roychowdhury +5
Topological kagome magnets offer a rich landscape for exploring the intricate interplay of quantum interactions among geometry, topology, spin, and correlation. GdTi3Bi4 crystalliz…
Anomalous impurity-induced charge modulations in black phosphorus
Byeongin Lee, Junho Bang, Sayan Banerjee +6
We observe anomalous charge modulations induced by ionized indium impurities on the surface of the semiconductor black phosphorus by scanning tunneling microscopy (STM). When the i…
Emergent Spin-Singlet Pairing in the Frustrated Kagome Metal ScMnAlSi
R. Guehne, A. K. Sharma, P. Yanda +7
The metallic kagome compound ScMnAlSi has attracted attention as a candidate platform where geometric frustration and itinerant electrons may cooperate to stabilize…
Broadband nonlinear Hall response and multiple wave mixing in a room temperature altermagnet
Soumya Sankar, Xingkai Cheng, Xinyu Chen +10
Crystalline symmetries determine the linear and nonlinear response of materials to external stimuli such as mechanical pressure and electromagnetic fields, governing phenomena such…
High Resolution Polar Kerr Effect Studies of Cs3Sb5 and ScV6Sn6 Below the Charge Order Transition
David R. Saykin, Qianni Jiang, Zhaoyu Liu +4
We report high resolution polar Kerr effect measurements on CsV3Sb5 and ScV6Sn6 single crystals in search for signatures of spontaneous polar Kerr effect (PKE) below the charge ord…
Photostriction-Driven Phase Transition in Layered Chiral NbOX Crystals: Electrical-Field-Controlled Enantiomer Selectivity
Jorge Cardenas-Gamboa, Martin Gutierrez-Amigo, Aritz Leonardo +5
Chiral crystals offer an unique platform for controlling structural handedness through external stimuli. However, the ability to select between structural enantiomers remains chall…
Strongly Entangled Kondo and Kagome Lattices and the Emergent Magnetic Ground State in Heavy-Fermion Kagome Metal YbVSn
Rui Lou, Max Mende, Riccardo Vocaturo +31
Applying angle-resolved photoemission spectroscopy and density functional theory calculations, we present compelling spectroscopic evidence demonstrating the intertwining and mutua…
Unravelling disorder in kagome YbCoGe
A. Korshunov, C. A. Fuller, C. -Y. Lim +7
The presence of phonon instabilities that leads to the formation of charge modulated states in kagome metals has allowed their classification based on the atomic displacements. Her…
Broad-band THz emission by Spin-to-Charge Conversion in Topological Material -- Ferromagnet Heterostructures
Xingyue Han, Xiong Yao, Tilak Ram Thapaliya +10
Terahertz spintronic devices combine ultrafast operation with low power consumption, making them strong candidates for next-generation memory technologies. In this study, we use ti…
Topological quantum materials: kagome, chiral, and square-net frameworks
Avdhesh K. Sharma, Snehashish Chatterjee, Premakumar Yanda +2
Topological quantum materials have emerged as a frontier in condensed matter physics as well as in materials science, with intriguing electronic states that are robust to perturbat…
Probing orbital magnetism of a kagome metal CsV3Sb5 by a tuning fork resonator
Hengrui Gui, Lin Yang, Xiaoyu Wang +13
The recently discovered kagome metal CsVSb exhibits a complex phase diagram that encompasses frustrated magnetism, topological charge density wave (CDW), and superconductiv…
Emergent heavy-fermion physics in a new family of topological insulators RAsS (R = Y, La, and Sm)
Iñigo Robredo, Yuan Fang, Lei Chen +10
Realizing topological phases in strongly correlated materials has become a major impetus in condensed matter physics. Although many compounds are now classified as topological insu…