352 citations · 479 across the 7 of their papers we have counts for
7 papers
Non-Hermitian Linear Electrooptic Effect in 3D materials
Tiago A. Morgado, Tatiana G. Rappoport, Stepan S. Tsirkin +3
Here, we present an in-depth theoretical analysis of the linear electrooptic effect in low-symmetry three-dimensional (3D) conductive materials with large Berry curvature dipoles.…
Covariant derivatives of Berry-type quantities: Application to nonlinear transport
Xiaoxiong Liu, Stepan S. Tsirkin, Ivo Souza
The derivatives of the Berry curvature and intrinsic orbital magnetic moment m in momentum space are relevant to various problems, including the nonlinear anomalous Hall effect…
Ab initio study of the nonlinear optical properties and d.c. photocurrent of the Weyl semimetal TaIrTe
Álvaro R. Puente-Uriona, Stepan S. Tsirkin, Ivo Souza +1
We present a first principles theoretical study employing nonlinear response theory to investigate the d.c. photocurrent generated by linearly polarized light in the type-II Weyl s…
Topological Zero-Dimensional Defect and Flux States in Three-Dimensional Insulators
Frank Schindler, Stepan S. Tsirkin, Titus Neupert +2
In insulating crystals, it was previously shown that defects with two fewer dimensions than the bulk can bind topological electronic states. We here further extend the classificati…
Many-body Resonance in a Correlated Topological Kagome Antiferromagnet
Songtian S. Zhang, Jia-Xin Yin, Muhammad Ikhlas +16
We use scanning tunneling microscopy/spectroscopy (STM/S) to elucidate the atomically resolved electronic structure in strongly correlated topological kagome magnet MnSn. In st…
Unfolding spinor wavefunctions and expectation values of general operators: Introducing the unfolding-density operator
Paulo V. C. Medeiros, Stepan S. Tsirkin, Sven Stafström +1
We show that the spectral weights used for the unfolding of two-component spinor eigenstates $| {ψ_{m\vec K}^\mathrm{SC}} > = | α> | {ψ_{m\vec{K}}^\mathrm{SC,…