The competition between the effects of finite size and the disorder on rectangular superconducting small grains for hole-doped cuprates by a model based on spin fluctuations

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AFZALI REZA; ALIZADEH AMID

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Journal: JOURNAL OF RESEARCH ON MANY BODY SYSTEMS Year:2017 | Volume:7 | Issue:14 Page(s): 13-24

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Title

The competition between the effects of finite size and the disorder on rectangular superconducting small grains for hole-doped cuprates by a model based on spin fluctuations

Author(s)

AFZALI REZA | ALIZADEH AMID | Issue Writer Certificate

Keywords

hole-doped cuprateQ1

spin-fermion modelQ1

size effectQ1

disorder effectQ1

Abstract

In this article, we consider rectangular superconducting small grains for hole-doped cuprates near diagonal zone. Since important models for high temperature superconductivity contain the exchange of spin fluctuations, we want to apply one of the famous modelscalled spin-fermion. Based on this model, we want to obtain the total polarization (without considering self-energy and using standard Eliashberg equations) and first order correction of polarization (using perturbed linearized equation and normal and anomalous first order Green's function) in terms of finite size and disorder effects, numerically. It's worth mentioning that the first order perturbed polarization is expanded in terms of size-dependent gap and this polarization itself depends on disorder. Finally, competition between two effects is investigated and it is observed that the finite size effect is more dominant with respect to the disorder effect.

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APA: Copy

AFZALI, REZA, & ALIZADEH, AMID. (2017). The competition between the effects of finite size and the disorder on rectangular superconducting small grains for hole-doped cuprates by a model based on spin fluctuations. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, 7(14 ), 13-24. SID. https://sid.ir/paper/243855/en

Vancouver: Copy

AFZALI REZA, ALIZADEH AMID. The competition between the effects of finite size and the disorder on rectangular superconducting small grains for hole-doped cuprates by a model based on spin fluctuations. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS[Internet]. 2017;7(14 ):13-24. Available from: https://sid.ir/paper/243855/en

IEEE: Copy

REZA AFZALI, and AMID ALIZADEH, “The competition between the effects of finite size and the disorder on rectangular superconducting small grains for hole-doped cuprates by a model based on spin fluctuations,” JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, vol. 7, no. 14 , pp. 13–24, 2017, [Online]. Available: https://sid.ir/paper/243855/en

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