activity
20192026
most citedOptical signatures of multifold fermions in the chiral topological semimetal CoSi

69 citations · 129 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.str-el2026

Electronic Sound and Diffusion in Disordered Multiband Metals

Miguel-Ángel Sánchez-Martínez, Blaise Goutéraux, Louk Rademaker +1

Multiband metals can host acoustic plasmons: gapless collective charge excitations involving out-of-phase motion of electrons in different bands, sometimes referred to as 'demons'.…

cond-mat.mes-hall2026

Fractal Topology of Majorana Bound States in Superconducting Quasicrystals

William Caiger, Felix Flicker, Miguel-Ángel Sánchez-Martínez

Quasicrystalline order induces a fractal energy spectrum, yet its impact on topological protection remains an open fundamental question. Here, we demonstrate that the topological p…

cond-mat.supr-con2025

Optical probes of two-component pairing states in transition metal dichalcogenides

Miguel-Ángel Sánchez-Martínez, Daniel Muñoz-Segovia, Fernando de Juan

Signatures of unconventional superconductivity have been recently observed in certain transition metal dichalcogenides (TMDs), including 4H-TaS and monolayer 2H-NbSe. W…

cond-mat.mtrl-sci2021

Suppression of second-harmonic generation from linear bands in the topological multifold semimetal RhSi

Baozhu Lu, Sharareh Sayyad, Miguel Ángel Sánchez-MartÍnez +4

Recent experiments in the topological Weyl semimetal TaAs have observed record-breaking second-harmonic generation, a non-linear optical response at generated by an incoming l…

cond-mat.mtrl-sci2020★ 69 cited

Optical signatures of multifold fermions in the chiral topological semimetal CoSi

B. Xu, Z. Fang, M. A. Sánchez-Martínez +12

We report the optical conductivity in high-quality crystals of the chiral topological semimetal CoSi, which hosts exotic quasiparticles known as multifold fermions. We find that th…

cond-mat.mes-hall2019★ 60 cited

Linear optical conductivity of chiral multifold fermions

Miguel-Ángel Sánchez-Martínez, Fernando de Juan, Adolfo G. Grushin

Chiral multifold fermions are quasiparticles described by higher spin generalizations of the Weyl equation, and are realized as low energy excitations near symmetry protected band…