Spin echo dynamics under an applied drift field in graphene nanoribbon superlattices

Journal Article · Mon Dec 02 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4836395· OSTI ID:22253879

Prabhakar, Sanjay ^[1]; Melnik, Roderick ^[1]; Bonilla, Luis L. ^[2]; Raynolds, James E. ^[3]

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1. M 2NeT Laboratory, Wilfrid Laurier University, 75 University Avenue West, Waterloo, Ontario N2L 3C5 (Canada)
2. Gregorio Millan Institute, Universidad Carlos III de Madrid, 28911 Leganes (Spain)
3. Drinker Biddle and Reath LLP, Washington, DC 20005 (United States)

We investigate the evolution of spin dynamics in graphene nanoribbon superlattices (GNSLs) with armchair and zigzag edges in the presence of a drift field. We determine the exact evolution operator and show that it exhibits spin echo phenomena due to rapid oscillations of the quantum states along the ribbon. The evolution of the spin polarization is accompanied by strong beating patterns. We also provide detailed analysis of the band structure of GNSLs with armchair and zigzag edges.

• OSTI ID: 22253879
• Journal Information: Applied Physics Letters, Vol. 103, Issue 23; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
77 NANOSCIENCE AND NANOTECHNOLOGY
EVOLUTION
GRAPHENE
NANOSTRUCTURES
QUANTUM STATES
SPIN
SPIN ECHO
SPIN ORIENTATION
SUPERLATTICES