Far infrared cyclotron resonance and Faraday effect in Bi2Se3

Abstract

The complex Faraday angle and transmission for the topological insulator Bi2Se3 were measured in the far infrared in magnetic fields up to 8 T and analyzed in terms of a simple Drude-Lorentz magneto-plasma dielectric model. Bulk carriers dominate the optical response. The bulk carriers are electrons as we determined from the sign of the Faraday angle. We obtain the bulk band edge cyclotron mass m_cb = 0.16 +- 0.01 m_e and free electron concentration in the 10^17 range. Electron-phonon interaction effects were found to be weak.

5 pages, 4 figures, resubmitted to PRB

References in corpus (6)

• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• Topological Field Theory of Time-Reversal Invariant Insulators
• Bulk Fermi surface coexistence with Dirac surface state in Bi${}_2$Se${}_3$: a comparison of photoemission and Shubnikov-de Haas measurements
• Strong surface scattering in ultrahigh mobility Bi2Se3 topological insulator crystals
• Simultaneous measurement of circular dichroism and Faraday rotation at terahertz frequencies using heterodyne detection
• Terahertz magneto-transport measurements in underdoped PCCO and comparison with ARPES

Cited by in corpus (37)

• Topological insulators and superconductors
• Spintronics and Pseudospintronics in Graphene and Topological Insulators
• Observation of Dirac plasmons in a topological insulator
• Superconductivity in the topological semimetal YPtBi
• THz response and colossal Kerr rotation from the surface states of the topological insulator Bi${}_2$Se${}_3$
• Magneto-Optical Faraday and Kerr Effects in Topological Insulator Films and in Other Layered Quantized Hall Systems
• Insulating behavior in ultra-thin bismuth selenide field effect transistors
• Selective probing of photo-induced charge and spin dynamics in the bulk and surface of a topological insulator
• Massive Dirac surface states in topological insulator/magnetic insulator heterostructures
• Nonlinear optical probe of tunable surface electrons on a topological insulator
• Transport in three-dimensional topological insulators: theory and experiment
• Spatially resolved femtosecond pump-probe study of topological insulator Bi2Se3
• Superconductivity of topological insulator Bi2Se3 at high pressures
• Spin-helical transport in normal and superconducting topological insulators
• Time-resolved terahertz dynamics in thin films of the topological insulator Bi${}_2$Se${}_3$
• Shift charge and spin photocurrents in Dirac surface states of topological insulator
• Magneto-optics of massive Dirac fermions in bulk Bi2Se3
• High pressure transport properties of the topological insulator Bi2Se3
• Optical evidence of surface state suppression in Bi based topological insulators
• Surface collective modes in the topological insulators Bi${}_2$Se${}_3$ and Bi${}_{0.5}$Sb${}_{1.5}$Te${}_{3-x}$Se${}_x$
• Phonon spectrum and bonding properties of Bi${}_2$Se${}_3$: Role of strong spin-orbit interaction
• Electrostatic Coupling between Two Surfaces of a Topological Insulator Nanodevice
• Models of three-dimensional fractional topological insulators
• Fluctuation-induced torque on a topological insulator out of thermal equilibrium
• Giant Photonic Response of Mexican-hat Topological Semiconductors for Mid-infrared to THz Applications
• Dirac cone shift of a passivated topological Bi2Se3 interface state
• Critical surface band gap of repulsive Casimir interaction between three dimensional topological insulators at finite temperature
• Surface phonon propagation in topological insulators
• Strong interband Faraday rotation in 3D topological insulator Bi2Se3
• Optical responses and optical activity of ultrathin films of topological insulator
• Giant plateau in the THz Faraday angle in gated Bi2Se3
• Multiphoton excitation and high-harmonics generation in topological insulator
• Sub-THz momentum drag and violation of Matthiessen's rule in an ultraclean ferromagnetic SrRuO${}_3$ metallic thin film
• Magneto-optical properties of topological insulator thin films with broken inversion symmetry
• Fano q-reversal in topological insulator Bi2Se3
• A thermodynamic measure of the Magneto-electric coupling in the 3D topological insulator
• Cyclotron Resonance in Topological Insulators: Non-Relativistic Effects