Browsing by Author "Potasz, P."

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Graphene-based integrated electronic, photonic and spintronic circuit

Potasz, P.; Güçlü, Alev Devrim; Özfidan, Işıl; Korkusinski, Marek; Hawrylak, Pawel (SPIE, 2013)

To create carbon-based nanoscale integrated electronic, photonic, and spintronic circuit one must demonstrate the three functionalities in a single material, graphene quantum dots (GQDs), by engineering lateral size, shape, ...
Sublattice engineering and voltage control of magnetism in triangular single and bi-layer graphene quantum dots

Güçlü, Alev Devrim; Potasz, P.; Hawrylak, Pawel (Wiley, 2016-01)

When a Dirac electron is confined to a triangular graphene quantum dot with zigzag edges, its low-energy spectrum collapses to a shell of degenerate states at the Fermi level leading to a magnetized edge. The shell degeneracy ...
Zero-energy states of graphene triangular quantum dots in a magnetic field

Güçlü, Alev Devrim; Potasz, P.; Hawrylak, P. (American Physical Society, 2013-10)

We present a tight-binding theory of triangular graphene quantum dots (TGQD) with zigzag edge and broken sublattice symmetry in an external magnetic field. The lateral size quantization opens an energy gap, and broken ...