Thermal conductivity and modification the formula of the hole (Electron)-phonon scattering : application to antimony at low temperature
Author
Source
Journal of Basrah Researches : Sciences
Issue
Vol. 36, Issue 4A (31 Aug. 2010), pp.22-28, 7 p.
Publisher
University of Basrah College of Education for Pure Sciences
Publication Date
2010-08-31
Country of Publication
Iraq
No. of Pages
7
Main Subjects
Topics
Abstract AR
باستخدام نموذج كالوي تم حساب التوصيل الحراري للانتيمون في مدى حراري يتراوح بين 0.4 إلى 2.4 درجة مطلقة.
خصصت الدراسة لتعديل العلاقات الخاصة بالمعدل الزمني للاسترخاء للتشتت الفونوني بالفجوات أو الإلكترونات باستخدام علاقة المتجه الموجي للفونون الموجودة ضمن علاقة التشتت الفونوني بالفجوات أو الإلكترونات بدلا من علاقة التفريق لديباي (q = w / v).
تم الأخذ بالاعتبار التشتت الفونوني بحدود البلورة و بالعيوب البلورية و بالفونونات الثلاثية (الاعتيادية و الاومكلابية) لحساب المعدل الكلي لزمن الاسترخاء.
تم الحصول على تطابق جيد بين القيم العملية و النظرية للتوصيل الحراري.
Abstract EN
Using Callaway’s Model, thermal conductivity of antimony in the temperature range between (0.4-2.4)K was calculated.
Specialized present study to modification the formula of hole(electron)-phonon scattering relaxation rate by using phonon wave vector which is located in the formula of the hole(electron)-phonon relaxation rate, instead of Debye dispersion relation ( q =w /u ).
In addition to scattering the phonons by holes(electrons) ,the boundary scattering, point defects and three-phonon scattering (normal & umklapp) were taken into account to find the total relaxation rate.
Good agreement between theory and experiment is obtained in temperature rang (0.4-2.4)K.
American Psychological Association (APA)
Mahdi, Ahmad S.. 2010. Thermal conductivity and modification the formula of the hole (Electron)-phonon scattering : application to antimony at low temperature. Journal of Basrah Researches : Sciences،Vol. 36, no. 4A, pp.22-28.
https://search.emarefa.net/detail/BIM-381595
Modern Language Association (MLA)
Mahdi, Ahmad S.. Thermal conductivity and modification the formula of the hole (Electron)-phonon scattering : application to antimony at low temperature. Journal of Basrah Researches : Sciences Vol. 36, no. 4A (Aug. 2010), pp.22-28.
https://search.emarefa.net/detail/BIM-381595
American Medical Association (AMA)
Mahdi, Ahmad S.. Thermal conductivity and modification the formula of the hole (Electron)-phonon scattering : application to antimony at low temperature. Journal of Basrah Researches : Sciences. 2010. Vol. 36, no. 4A, pp.22-28.
https://search.emarefa.net/detail/BIM-381595
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 28
Record ID
BIM-381595