WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7150

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2002 - 200912010 - 20151

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Has files: NoPublisher: search.filters.publisher.Inderscience Enterprises Ltd.

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  • Article
    Citation - WoS: 3
    Citation - Scopus: 3
    Spin-Orbit Coupling and Optical Detection of Spin Polarisation in Triangular Graphene Quantum Dots
    (Inderscience Enterprises Ltd., 2015) Potasz, P.; Güçlü, Alev Devrim; Özfidan, I.; Hawrylak, P.
    We present a theory of the effect of spin-orbit coupling on optical properties of triangular graphene quantum dots (TGQD). TGQDs with zigzag edges exhibit a degenerate band of states at the Fermi level. For the charge neutral TGQD, the shell is expected to be half-filled by spin polarised electrons leading to finite magnetisation. Using four-band tight-binding and effective Kane-Mele models, we show that, if the TGQD is spin polarised, the low energy optical absorption spectrum reveals two distinct peaks corresponding to left and right circularly polarised light while the unpolarised TGQD shows only one peak. This allows optical detection of spin polarisation, its direction and the strength of spin-orbit coupling in TGQDs.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 3
    A new hybrid CVT design: CVPSTs
    (Inderscience Enterprises Ltd., 2002) Özdemir, Serhan; Schueller, John
    Automotive transmissions match the speed and the torque of the power source to the speed and torque requirements of the load. Properly designed continuously variable transmissions (CVTs) have shown promise to improve efficiency and performance. This work discusses some existing CVTs and proposes a new hybrid continuously variable power split transmission (CVPST). The speed relationships are analysed in power split and power recirculation mechanisms, the problem of geared neutral phenomenon with recirculating transmissions are identified and these two separate issues are left out as a topic for another paper. A new 'all-in-one' CVPST transmission incorporating power split and power recirculation is proposed.