Tristan Meunier, Institue Néel

Jeudi 6 Octobre 2011,16h
Amphi Howleck, Esc C, 1ème etage

Magneto-transport in 3D strained HgTe topological insulator

Tristan Meunier, CNRS-Institut Néel

When growing HgTe on a CdTe substrate, bi-axial strain opens a gap in HgTe turning it from a semi-metal to a 3D topological insulator. We have performed low field and high field magneto-transport experiment in this 3D topological material. We find that the bulk contribution to the transport current is much smaller than in any other known material. At low fields, weak antilocalization contribution on different field scales and a signature of the Dirac point of the expected surface states are observed. At high fields, several plateaus are observed in the Hall conductance. The analysis of the quantum Hall indices will be presented.

Haut de page



À lire aussi...

Ludivine Chauviere, LPEM

Jeudi 16 Fevrier, 16hAmphi Howleck, Esc C, 1ème etage Magnétisme et supraconductivité dans les pnictures de fer étudiés par diffusion Raman Ludivine (...) 

> Lire la suite...

Dimitri Roditchev, Institut des Nanosciences de Paris, Université Pierre et Marie Curie-Paris

Mardi 31 Mai 2011, 16h00Amphi Boreau, Esc C, 2ème etage Confinement-Induced Vortex Fusion and Giant Vortex States in Superconductors Dimitri (...) 

> Lire la suite...