[Pw_forum] regarding the stability of system

[mohaddeseh abbasnejad]

Dear experts,

In my calculations, I have studied four different configurations of system.
Based on the calculated energy, the stable configuration (lowest value of
energy) has larger Fermi energy and the highest value of energy (less
stable one) is related to the lowest Fermi energy. However, I have read
that increasing the Fermi energy in the system is expected to decrease the
stability. I was wondering if you would help me on which parameter should
be considered to determine the stability.
Thanks in advance.

Regards,
M.Abbasnejad
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Mohaddeseh Abbasnejad,
Room No. 323, Department of Physics,
University of Tehran, North Karegar Ave.,
Tehran, P.O. Box: 14395-547- IRAN
Tel. No.: +98 21 6111 8634  & Fax No.: +98 21 8800 4781
Cellphone: +98 917 731 7514
E-Mail:     m.abbasnejad at gmail.com
Website:  http://physics.ut.ac.ir

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