activity
20202026
most citedLongitudinal magnetoconductance and the planar Hall effect in a lattice model of tilted Weyl fermions

23 citations · 50 across the 12 of their papers we have counts for

collaborators

12 papers

cond-mat.mes-hall2026

Chiral anomaly and planar Hall conductance in pseudospin- Fermions

Azaz Ahmad

Positive longitudinal magnetoconductance (LMC) and planar Hall conductance (PHC) are hallmark transport signatures of the chiral anomaly in Weyl semimetals. Recent theoretical deve…

cond-mat.mes-hall2026

Semiclassical theory of frequency dependent linear magneto-optical transport in Weyl semimetals

Azaz Ahmad, Pankaj Bhalla, Snehasish Nandy +1

We develop a semiclassical Boltzmann theory for frequency-dependent magneto-optical transport in Weyl semimetals (WSMs), incorporating momentum-dependent relaxation via a scatterin…

cond-mat.mes-hall2026

Semiclassical magnetotransport in Weyl semimetals with skyrmion-induced emergent magnetic fields

Azaz Ahmad, Takami Tohyama

We investigate magnetotransport in a time-reversal symmetry-broken, untilted Weyl semimetal in the simultaneous presence of momentum-space Berry curvature and skyrmion-induced emer…

cond-mat.mes-hall2025

Strain-induced Ettingshausen effect in spin-orbit coupled noncentrosymmetric metals

Gautham Varma K, Azaz Ahmad, Gargee Sharma

Elastic deformations couple with electronic degrees of freedom in materials to generate gauge fields that lead to interesting transport properties. Recently, it has been well studi…

cond-mat.mes-hall2025★ 4 cited

Chiral anomaly-induced nonlinear Hall effect in spin-orbit coupled noncentrosymmetric metals

Gautham Varma K, Mohd. Hashim Raza, Azaz Ahmad

Recent studies have shown that chiral anomaly is not limited to Weyl semimetals (WSMs), but are also shown by a larger class of materials called spin orbit coupled noncentrosymmetr…

cond-mat.mes-hall2025

Quasiclassical electron transport in topological Weyl semimetals

Azaz Ahmad

Weyl fermions are powerful yet simple entities that connect geometry, topology, and physics. While their existence as fundamental particles is still uncertain, growing evidence sho…

cond-mat.mes-hall2024★ 1 cited

Chiral anomaly and longitudinal magnetoconductance in pseudospin-1 fermions

Azaz Ahmad, Gargee Sharma

Chiral anomaly (CA), a hallmark of Weyl fermions, has emerged as a cornerstone of condensed matter physics following the discovery of Weyl semimetals. While the anomaly in pseudosp…

cond-mat.mes-hall2024★ 1 cited

Nonlinear anomalous Hall effect in three-dimensional chiral fermions

Azaz Ahmad, Gautham Varma K., Gargee Sharma

Chiral fermionic quasiparticles emerge in certain quantum condensed matter systems such as Weyl semimetals, topological insulators, and spin-orbit coupled noncentrosymmetric metals…

cond-mat.mes-hall2024

Geometry, anomaly, topology, and transport in Weyl fermions

Azaz Ahmad, Gautham Varma K., Gargee Sharma

Weyl fermions are one of the simplest objects that link ideas in geometry and topology to highenergy physics and condensed matter physics. Although the existence of Weyl fermions a…

cond-mat.mes-hall2023

Magnetotransport in spin-orbit coupled noncentrosymmetric and Weyl metals

Gautham Varma K, Azaz Ahmad, Sumanta Tewari +1

Recently, chiral anomaly (CA) has been proposed to occur in spin-orbit coupled noncentrosymmetric metals (SOC-NCMs), motivating CA to be a Fermi surface property rather than a Weyl…

cond-mat.mes-hall2022★ 21 cited

Longitudinal magnetoconductance and the planar Hall conductance in inhomogeneous Weyl semimetals

Azaz Ahmad, Karthik V. Raman, Sumanta Tewari +1

Elastic deformations (strain) couple to the electronic degrees of freedom in Weyl semimetals as an axial magnetic field (chiral gauge field), which in turn affects their impurity d…

cond-mat.mes-hall2020★ 23 cited

Longitudinal magnetoconductance and the planar Hall effect in a lattice model of tilted Weyl fermions

Azaz Ahmad, Gargee Sharma

The experimental verification of chiral anomaly in Weyl semimetals is an active area of investigation in modern condensed matter physics, which typically relies on the combined sig…