Related Experiment Video
Updated: Oct 9, 2025

Characterization of Thermal Transport in One-dimensional Solid Materials
Published on: January 26, 2014
Thermoelectric Transport in a Three-Dimensional HgTe Topological Insulator
Gennady M Gusev1, Ze D Kvon2,3, Alexander D Levin1
1Instituto de Física, Universidade de São Paulo, São Paulo 135960-170, Brazil.
Abstract:
The thermoelectric response of 80 nm-thick strained HgTe films of a three-dimensional topological insulator (3D TI) has been studied experimentally. An ambipolar thermopower is observed where the Fermi energy moves from conducting to the valence bulk band. The comparison between theory and experiment shows that the thermopower is mostly due to the phonon drag contribution. In the region where the 2D Dirac electrons coexist with bulk hole states, the Seebeck coefficient is modified due to 2D electron-3D hole scattering.
More Related Videos
Related Concept Videos
Theory of Metallic Conduction
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
Types of Semiconductors
Carrier Transport
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
Path Between Thermodynamics States
Thermal Sigmatropic Reactions: Overview
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in...
Thermodynamic Potentials

