560 citations · 4.5k across the 85 of their papers we have counts for
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Fast electrically switchable large gap quantum spin Hall states in MGeZ
Rajibul Islam, Ghulam Hussain, Rahul Verma +4
Spin-polarized conducting edge currents counterpropagate in quantum spin Hall (QSH) insulators and are protected against disorder-driven localizations by the time-reversal symmetry…
Engineering axion insulator phase in superlattices with inversion symmetry breaking
Rajibul Islam, Sougata Mardanya, Alexander Lau +6
We study theoretically the interplay between magnetism and topology in three-dimensional HgTe/MnTe superlattices stacked along the (001) axis. Our results show the evolution of the…
Coupling between colossal charge density wave ordering and magnetism in Ho2Ir3Si5
Sitaram Ramakrishnan, Jin-Ke Bao, Claudio Eisele +14
Ho2Ir3Si5 belongs to the family of three-dimensional (3D) R2Ir3Si5 (R = Lu, Er and Ho) compounds that exhibit a colossal first-order charge density wave (CDW) transition where ther…
Sign change of the anomalous Hall effect and the anomalous Nernst effect in Weyl semimetal CeAlSi
Md Shahin Alam, Amar Fakhredine, Mujeeb Ahmed +9
We report the anomalous Hall effect (AHE) and the anomalous Nernst effect (ANE) data for the non-collinear Weyl semimetal CeAlSi. The anomalous Hall conductivity (σ_ij^A) was measu…
Critical role of magnetic moments on lattice dynamics in YBaCuO
Jinliang Ning, Christopher Lane, Yubo Zhang +6
The role of lattice dynamics in unconventional high-temperature superconductivity is still vigorously debated. Theoretical insights into this problem have long been prevented by th…
Switchable large-gap quantum spin Hall state in two-dimensional MSiZ materials class
Rajibul Islam, Rahul Verma, Barun Ghosh +4
Quantum spin Hall (QSH) insulators exhibit spin-polarized conducting edge states that are topologically protected from backscattering and offer unique opportunities for addressing…
Strongly bound excitons in monolayer MoSiZ (Z = pnictogen)
Pushpendra Yadav, Bramhachari Khamari, Bahadur Singh +2
Reduced dielectric screening in two-dimensional materials enables bound excitons, which modifies their optical absorption and optoelectronic response even at room temperature. Here…
Peierls distortion driven multi-orbital origin of charge density waves in the undoped infinite-layer nickelate
Ruiqi Zhang, Christopher Lane, Johannes Nokelainen +5
Understanding similarities and differences between the cuprate and nickelate superconductors is drawing intense current interest. Competing charge orders have been observed recentl…
Topological spiral magnetism in the Weyl semimetal SmAlSi
Xiaohan Yao Jonathan Gaudet, Rahul Verma, David E. Graf +13
Weyl electrons are intensely studied due to novel charge transport phenomena such as chiral anomaly, Fermi arcs, and photogalvanic effect. Recent theoretical works suggest that Wey…
Analysis of the unconventional chiral fermions in a non-centrosymmetric chiral crystal
Vikas Saini, Souvik Sasmal, Ruta Kulkarni +2
Symmetry-protected non-trivial states in chiral topological materials hold immense potential for fundamental science and technological advances. Here, we report electrical transpor…
Magnetically tunable Dirac and Weyl fermions in the Zintl materials family
Anan Bari Sarkar, Sougata Mardanya, Shin-Ming Huang +7
Recent classification efforts encompassing crystalline symmetries have revealed rich possibilities for solid-state systems to support a tapestry of exotic topological states. Howev…
Complex electronic structure evolution of NdSb across the magnetic transition
Anup Pradhan Sakhya, Baokai Wang, Firoza Kabir +12
The rare-earth monopnictide (REM) family, which hosts magnetic ground states with extreme magnetoresistance, has established itself as a fruitful playground for the discovery of in…
Observation of Fermi arcs and Weyl nodes in a non-centrosymmetric magnetic Weyl semimetal
Anup Pradhan Sakhya, Cheng-Yi Huang, Gyanendra Dhakal +15
Weyl semimetal (WSM), a novel state of quantum matter, hosts Weyl fermions as emergent quasiparticles resulting from the breaking of either inversion or time-reversal symmetry. Mag…
Collective plasmonic modes in the chiral multifold fermionic material CoSi
Debasis Dutta, Barun Ghosh, Bahadur Singh +4
Plasmonics in topological semimetals offers exciting opportunities for fundamental physics exploration as well as for technological applications. Here, we investigate plasmons in t…
Orthorhombic charge density wave on the tetragonal lattice of EuAl4
Sitaram Ramakrishnan, Surya Rohith Kotla, Toms Rekis +13
EuAl4 possesses the BaAl4 crystal structure type with tetragonal symmetry I4/mmm. It undergoes a charge-density-wave (CDW) transition at TCDW = 145 K and it features four consecuti…