000 01569nam a2200337 a 4500
003 EG-GiCUC
008 090404s2008 ua d f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng.
049 _aDeposite
097 _aPh.D.
099 _aCai01.12.20.Ph.D.2008.Th.P
100 0 _aThana Mohammed Abdulaziz Shuga Aldeen
245 1 0 _aPhase transitions of a new phosphonium perovskite family /
_cThana Mohammed Abdulaziz Shuga Aldeen ;Supervised Mohga F. Mostafa , Samy S. Ataallah , Ahmed A. A. Youssef
246 1 5 _aالتغيرات الطوريه لمجموعة جديدة من بروفسكايتات الفسفور
260 _aCairo :
_bThana Mohammed Abdulaziz Shuga Aldeen ,
_c2008
300 _a131Leaves :
_bcharts ;
_c30cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physics
520 _aPhase transitions of three new perovskite like materials with the general formulae[(CH3) (C6H5)3P]2MBR4;M=Co,Zn and Cd is presenred.Single crystal x-ray determination of Co and Zn Samples and powder x-ray diffraction of Cd sample indicate a monoclinic unit cell at(R.T)with a space group P21
530 _aIssued also as CD
653 4 _aCrystal structure
653 4 _aDielectric permitivity
653 4 _aPhase transitions
700 0 _aAhmed A. Abdelbary Youssef,
_eSupervisor
700 0 _aMohga Fared Mostafa ,
_eSupervisor
700 0 _aSamy Shaban Ataallah ,
_eSupervisor
902 _a1
905 _aNazla
_eRevisor
905 _aSoheir
_eCataloger
942 _2ddc
_cTH
999 _c15806
_d15806