This site uses cookies. By continuing to use this site you agree to our use of cookies. To find out more, see our Privacy and Cookies policy. Close this notification
NOTICE: There are currently some performance issues with IOPscience, which may also cause error messages to appear. Apologies for the inconvenience..

The European Physical Society (EPS) is a not for profit association whose members include 41 National Physical Societies in Europe, individuals from all fields of physics, and European research institutions.

As a learned society, the EPS engages in activities that strengthen ties among the physicists in Europe. As a federation of National Physical Societies, the EPS studies issues of concern to all European countries relating to physics research, science policy and education.

Visit www.eps.org

http://www.eps.org/

The Institute of Physics (IOP) is a leading scientific society promoting physics and bringing physicists together for the benefit of all. It has a worldwide membership of around 50 000 comprising physicists from all sectors, as well as those with an interest in physics. It works to advance physics research, application and education; and engages with policy makers and the public to develop awareness and understanding of physics. Its publishing company, IOP Publishing, is a world leader in professional scientific communications.

https://www.iop.org

Electric-field–induced lifting of the valley degeneracy in α-(BEDT-TTF)2I3 Dirac-like Landau levels

, , and

Published 19 March 2009 Europhysics Letters Association
, , Citation M. O. Goerbig et al 2009 EPL 85 57005

0295-5075/85/5/57005

Abstract

The relativistic Landau levels in the layered organic material α-(BEDT-TTF)2I3 (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene) are sensitive to the tilt of the Dirac cones, which, as in the case of graphene, determine the low-energy electronic properties under appropriate pressure. We show that an applied in-plane electric field, which happens to be in competition with the tilt of the cones, lifts the twofold valley degeneracy due to a different level spacing. This scenario may be tested in infrared transmission spectroscopy.

Export citation and abstract BibTeX RIS

10.1209/0295-5075/85/57005