کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1592672 1002669 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Theoretical study of phase diagram of electron-doped cuprates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Theoretical study of phase diagram of electron-doped cuprates
چکیده انگلیسی

The phase diagram analysis of electron-doped high TCTC cuprates is studied and its comparison with hole-doped cuprates is reported. The mean field level calculations are carried out for three order parameters from a model Hamiltonian by using Zubarev's technique of single particle Greens function and hence expressions for which superconducting (SC) gap, antiferromagnetism (AFM) gap and dopant concentration are solved self consistently. It is found that antiferromagnetic phase overlaps with the SC phase for a doping range (x=−0.12x=−0.12) in electron doped system and AFM phase is suppressed in the appearance of SC phase, suggesting a competition between superconductivity and AFM order. We also compare its result with the theoretical phase diagram of hole doped cuprates studied earlier.


► Propose a model Hamiltonian to obtain a phase diagram of electron-doped cuprates.
► SC gap, AFM gap and chemical potential are solved self consistently.
► The results suggest a competition between superconductivity and antiferromagnetism.
► Compare the results with the phase diagram of hole-doped cuprates.
► The electron doped side of the phase diagram still needs experimental clarifications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 152, Issue 24, December 2012, Pages 2151–2155
نویسندگان
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