An ab-initio study of circular photogalvanic effect in chiral multifold semimetals

Abstract

So far, the circular photogalvanic effect (CPGE) is the only possible quantized signal in Weyl semimetals. With inversion and mirror symmetries broken, Weyl and multifold fermions in band structures with opposite chiralities can stay at different energies and generate a net topological charge. Such kind of net topological charge can present as a quantized signal in the circular polarized light induced injection current. According to current theoretical understanding, RhSi and its counterparts are believed to be the most promising candidate for the experimental observation of the quantized CPGE. However, the real quantized signal was not experimentally observed to date. Since all the previous theoretical studies for the quantized CPGE were based on effective model but not realistic band structures, it should lose some crucial details that influence the quantized signal. The current status motives us to perform a realistic ab-initio study for the CPGE. Our result shows that the quantized value is very easy to be interfered by trivial bands related optic transitions, and an fine tuning of the chemical potential by doping is essential for the observation of quantized CPGE. This work performs the first ab-initio analysis for the quantized CPGE based on realistic electronic band structure and provides an effective way to solve the current problem for given materials.

arXiv comment7 pages, 5 figures

References in corpus (36)

• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
• Classification of topological quantum matter with symmetries
• Type-II Weyl Semimetals
• Weyl Semimetal in a Topological Insulator Multilayer
• Dirac semimetal and topological phase transitions in A3Bi (A=Na, K, Rb)
• Dirac semimetal in three dimensions
• Experimental discovery of Weyl semimetal TaAs
• Three Dimensional Dirac Semimetal and Quantum Transports in Cd3As2
• Chern semi-metal and Quantized Anomalous Hall Effect in HgCr2Se4
• Giant anomalous Hall effect in a ferromagnetic Kagome-lattice semimetal
• Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
• Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase
• Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
• Observation of Weyl nodes in TaAs
• Discovery of a Weyl Fermion semimetal state in NbAs
• Quantized circular photogalvanic effect in Weyl semimetals
• Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions
• Multiple types of topological fermions in transition metal silicides
• Direct optical detection of Weyl fermion chirality in a topological semimetal
• Spectral and Fermi surface properties from Wannier interpolation
• Large Fermi Arcs in Unconventional Weyl Semimetal RhSi
• Discovery of topological chiral crystals with helicoid arc states
• Chiral anomaly and transport in Weyl metals
• Photocurrents in Weyl semimetals
• Gyrotropic magnetic effect and the magnetic moment on the Fermi surface
• Giant intrinsic spin Hall effect in the TaAs family of Weyl semimetals
• Observation of Topological Photocurrents in the Chiral Weyl Semimetal RhSi
• Chiral Optical Response of Multifold Fermions
• Ab initio calculation of the shift photocurrent by Wannier interpolation
• Chiral magnetic effect and natural optical activity in (Weyl) metals
• Chiral anomaly, dimensional reduction, and magnetoresistivity of Weyl and Dirac semimetals
• Difference frequency generation in topological semimetals
• Three-dimensional Critical Dirac semimetal in KMgBi
• $\beta$-CuI: a Dirac semimetal without surface Fermi arcs

Cited by in corpus (19)

• First Principles Calculations for Topological Quantum Materials
• Linear and nonlinear optical responses in the chiral multifold semimetal RhSi
• Symmetry Conserving Maximally Projected Wannier Functions
• Role of time reversal symmetry and tilting in circular photogalvanic responses
• Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response
• Electronic structure and unconventional non-linear response in double Weyl semimetal SrSi${}_2$
• Assessing the role of interatomic position matrix elements in tight-binding calculations of optical properties
• Topology and symmetry of circular photogalvanic effect in the chiral multifold semimetals: a review
• Ab initio study of the nonlinear optical properties and d.c. photocurrent of the Weyl semimetal TaIrTe${}_4$
• Photogalvanic response in multi-Weyl semimetals
• Optical signatures of spin symmetries in unconventional magnets
• Shift photoconductivity in the Haldane model
• Electrical conductivity and screening effect of spin-1 chiral fermions scattered by charged impurities
• Band Curvature Effects on Quantum Transport of Spin-1 Chiral Fermion Systems
• Robust quantisation of circular photogalvanic effect in multiplicative topological semimetals
• Large circular photogalvanic effect in the noncentrosymmetric magnetic Weyl semimetal CeAlSi
• Direct Measurement of Helicoid Surface States in RhSi using Nonlinear Optics
• Ultrafast Carrier Relaxation and Second Harmonic Generation in a Higher-Fold Weyl Fermionic System PtAl
• Theory of unidirectional magnetoresistance and nonlinear Hall effect