In this article, we report band structure studies of zigzag graphene nanoribbons (ZGNRs) on introducing defects (sp3 hybridized carbon atoms) in different concentrations at edges by varying the ratio of sp3 to sp2 hybridized carbon atoms. Wadhwa, Payal Kumar, Shailesh Dhilip Kumar, T. Our study gives important insights for the design of new edge-related electronic devices.Д®ffect of edge defects on band structure of zigzag graphene nanoribbons These prominent transport features are closely related to the observable density of states at the hydrogen-etched zigzag edge of graphene probed by scanning tunneling spectroscopy, which qualitatively matches the theoretically predicted electronic structure for zigzag-edged graphene. At a zero magnetic field, a nonlocal voltage signal, evidenced by edge conduction, is detected. The conductance peak persists under perpendicular magnetic fields and low temperatures. In the quantum Hall effect regime, a prominent conductance peak is observed at Landau ГЋВЅ =0, which is absent in GNRs with nonzigzag edges. In this Letter, we report the magnetotransport properties of Z-GNRs down to Г‹Е“70 nm wide on an h -BN substrate. Recent advances in hydrogen plasma-assisted 'top-down' fabrication of zigzag-edged graphene nanoribbons (Z-GNRs) have allowed us to investigate edge-related transport properties. The transport properties have not been revealed. Up to now, the approach used to study zigzag-edged graphene has mostly been limited to scanning tunneling microscopy. In theory, an evanescent nonchiral edge state is predicted at the zigzag edges of graphene. The determination of the electronic structure by edge geometry is unique to graphene. Wu, Shuang Liu, Bing Shen, Cheng Li, Si Huang, Xiaochun Lu, Xiaobo Chen, Peng Wang, Guole Wang, Duoming Liao, Mengzhou Zhang, Jing Zhang, Tingting Wang, Shuopei Yang, Wei Yang, Rong Shi, Dongxia Watanabe, Kenji Taniguchi, Takashi Yao, Yugui Wang, Weihua Zhang, Guangyu Magnetotransport Properties of Graphene Nanoribbons with Zigzag Edges Work supported by DST, India through MONAMI and Ramanujan grants. These results are crucial in understanding important effects of electron-electron interactions in graphene nanoribbons such as edge magnetism etc., and also suggest possibilities for device applications of graphene nanoribbons. We validate our analytical results with tight binding calculations. Zigzag edge graphene nanoribbons, therefore, provide a realization of response of organs such as the eye and ear that obey Weber-Fechner law. The dependence of the response on the size of the system (e.g.~width of a nanoribbon) is also uncovered. Our analytical calculations of the density and spin responses of the closed system (fixed particle number) to the static edge fields, show a highly nonlinear Weber-Fechner type behavior where the response depends logarithmically on the edge potential. Using a continuum Dirac theory, we study the density and spin response of zigzag edge terminated graphene ribbons subjected to edge potentials and Zeeman fields. Sensory Organ Like Response of Zigzag Edge Graphene Nanoribbons

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