کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5492302 | 1525674 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dirac-fermions in graphene d-wave superconducting heterojunction with the spin orbit interaction
ترجمه فارسی عنوان
دیوراک-فرمیون در گرانش دوبعدی ابررسانایی گرافن با تعامل مدار چرخشی
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کلمات کلیدی
انعکاس عکاسی آندریو، تقارن جفت شدن موج دایره ای غیر متقارن، تعامل مدار چرخش،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
In this study, based on the Dirac-Bogoliubov-de Gennes equation, we theoretically investigate the interaction effect between the anisotropic d-wave pairing symmetry and the spin orbit interaction (the Rashba spin orbit interaction (RSOI) and the Dresselhaus spin orbit interaction (DSOI)) in a graphene superconducting heterojunction. We find that the spin orbit interaction (SOI) plays a critical role on the tunneling conductance in the pristine case, but minimally affecting the tunneling conductance in the heavily doped case. As for the zero bias state, in contrast to the keep intact feature in the heavily doped case, it exhibits a distinct dependence on the RSOI and the DSOI in the pristine case. In particular, the damage of the zero bias state with a slight DSOI results in the disappearance of the zero bias conductance peak. Moreover, the tunneling conductances also show a qualitative difference with respect to the RSOI when both the RSOI and the DSOI are finite. These remarkable results suggest that the SOI and the anisotropic superconducting gap can be regarded as a key tool for diagnosing the specular Andreev reflection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 540, 15 September 2017, Pages 48-53
Journal: Physica C: Superconductivity and its Applications - Volume 540, 15 September 2017, Pages 48-53
نویسندگان
Wang Juntao, Wang Andong, Zhang Rui, Sun Deng, Yang Yanling,