Browsing 1. Fen Fakültesi / Faculty of Science by Author "Çakır, Özgür"

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Enhanced indirect exchange interactions in the presence of circular potentials in graphene

Canbolat, Ahmet Utku; Çakır, Özgür (American Physical Society, 2019-07)

We calculate indirect exchange interaction between two magnetic impurities in pristine graphene in the presence of a circular potential. In bulk graphene structures indirect exchange interaction, also known as RKKY ...
Influence of electron-phonon interactions on the spectral properties of defects in hexagonal boron nitride

Arı, Ozan; Fırat, Volkan; Polat, Nihat; Çakır, Özgür; Ateş, Serkan (OSA - The Optical Society, 2019)

We present temperature-dependent micro-PL studies on a single defect in hexagonal boron nitride. A zero-phonon line emission accompanied by Stokes and anti-Stokes phonon sidebands (˜ 6.5 meV) with a Debye-Waller factor of ...