Tunneling conductance in a graphene-insulator-superconductor junction with Corbino disk structure

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Khatami Hosniye; Moomivand Elham; Abdollahipour Babak; Mohammadkhani Ramin

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Journal: Iranian Journal of Physics Research Year:2017 | Volume:17 | Issue:3 Page(s): 485-489

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Information Journal Paper

Title

Tunneling conductance in a graphene-insulator-superconductor junction with Corbino disk structure

Author(s)

Khatami Hosniye | Moomivand Elham | Abdollahipour Babak | Mohammadkhani Ramin | Issue Writer Certificate

Keywords

GrapheneQ1

Tunneling conductanceQ1

SuperconductorQ2

Corbino diskQ1

Andreev reflectionQ1

Thin BarrierQ1

Abstract

We study Tunneling conductance of a Graphene based normal metal-insulator-Superconductor (NIS) junction with Corbino disk structure. Solving Dirac-Bogolioubov-De Gennes (DBdG) equation in different regions of the junction and employing scattering approach we obtain normal and Andreev reflection coefficients of the junction. Using Blonder-Tinkham-Klapwijk (BTK) formula we calculate Tunneling conductance of the junction as a function of the barrier strength of insulating region. The obtained results show that Tunneling conductance of the junction oscillates as a function of the barrier strength as in the planar structure case. The Tunneling conductance shows maximums at resonances which have a pi/2 phase shift with respect to the planar structure.

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APA: Copy

Khatami, Hosniye, Moomivand, Elham, Abdollahipour, Babak, & Mohammadkhani, Ramin. (2017). Tunneling conductance in a graphene-insulator-superconductor junction with Corbino disk structure. IRANIAN JOURNAL OF PHYSICS RESEARCH, 17(3 ), 485-489. SID. https://sid.ir/paper/1776/en

Vancouver: Copy

Khatami Hosniye, Moomivand Elham, Abdollahipour Babak, Mohammadkhani Ramin. Tunneling conductance in a graphene-insulator-superconductor junction with Corbino disk structure. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2017;17(3 ):485-489. Available from: https://sid.ir/paper/1776/en

IEEE: Copy

Hosniye Khatami, Elham Moomivand, Babak Abdollahipour, and Ramin Mohammadkhani, “Tunneling conductance in a graphene-insulator-superconductor junction with Corbino disk structure,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 17, no. 3 , pp. 485–489, 2017, [Online]. Available: https://sid.ir/paper/1776/en

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