Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures-Reference-Cited by-同舟云学术

Tuning the valley and chiral quantum state of Dirac electrons in van der Waals heterostructures

Published:2016-08-05 Issue:6299 Volume:353 Page:575-579
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Wallbank J. R.¹²,Ghazaryan D.²,Misra A.²,Cao Y.³,Tu J. S.³,Piot B. A.⁴,Potemski M.⁴,Pezzini S.⁵,Wiedmann S.⁵,Zeitler U.⁵,Lane T. L. M.¹²,Morozov S. V.²⁶⁷,Greenaway M. T.⁸,Eaves L.²⁸,Geim A. K.³,Fal'ko V. I.¹²,Novoselov K. S.¹²,Mishchenko A.¹²

Affiliation:

1. National Graphene Institute, University of Manchester, Manchester M13 9PL, UK.

2. School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK.

3. Centre for Mesoscience and Nanotechnology, University of Manchester, Manchester M13 9PL, UK.

4. Laboratoire National des Champs Magnétiques Intenses, LNCMI-CNRS-UGA-UPS-INSA-EMFL, 25 avenue des Martyrs, 38042 Grenoble, France.

5. High Field Magnet Laboratory (HFML-EMFL) and Institute of Molecules and Materials, Radboud University, Nijmegen, 6525 ED, Netherlands.

6. Institute of Microelectronics Technology and High Purity Materials, RAS, Chernogolovka 142432, Russia.

7. National University of Science and Technology “MISiS”, 119049, Leninsky pr. 4, Moscow, Russia.

8. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK.

Abstract

Teasing out chirality in graphene A chiral elementary particle has its spin pointing in either the same or the opposite direction as its momentum. In graphene, electrons have an analogous chirality, but observing it in electrical transport experiments is tricky. To do this, Wallbank et al. studied how electrons tunnel between two slightly misaligned graphene sheets separated by a layer of insulating hexagonal boron nitride. The chiral nature of the electrons imposed restrictions on the tunneling, which made it possible to discern the signatures of chirality in the data. Science , this issue p. 575

Funder

European Union FP7

European Research Council Synergy

Hetero2D

Engineering and Physical Sciences Research Council (EPSRC)

Royal Society

U.S. Army Research Office

U.S. Navy Research Office

U.S. Air Force Office of Scientific Research

Leverhulme Trust

NUST

Russian Foundation for Basic Research