TY - JOUR
T1 - Quantum valley Hall effect in proximity-induced superconducting graphene
T2 - An experimental window for deconfined quantum criticality
AU - Ghaemi, Pouyan
AU - Ryu, Shinsei
AU - Lee, Dung Hai
PY - 2010/2/4
Y1 - 2010/2/4
N2 - We show that when superconductivity is induced in graphene through proximity effect, a superconducting vortex is dressed with an interesting pattern of textured order parameters. Furthermore, passing a supercurrent in a superconducting graphene sample induces accumulation of valley pseudospin quantum number at edges: the "quantum valley Hall effect" will be observable in superconducting graphene. These effects reveal a quantum duality between different order parameters that is at heart of the Wess-Zumino-Witten term.
AB - We show that when superconductivity is induced in graphene through proximity effect, a superconducting vortex is dressed with an interesting pattern of textured order parameters. Furthermore, passing a supercurrent in a superconducting graphene sample induces accumulation of valley pseudospin quantum number at edges: the "quantum valley Hall effect" will be observable in superconducting graphene. These effects reveal a quantum duality between different order parameters that is at heart of the Wess-Zumino-Witten term.
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U2 - 10.1103/PhysRevB.81.081403
DO - 10.1103/PhysRevB.81.081403
M3 - Article
AN - SCOPUS:77954880588
SN - 1098-0121
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 8
M1 - 081403
ER -