Compositional Dependence of Properties of rf-Sputtered Bi-Sr-Ca-Cu-O thin Films

Ayhan GÜLDESTE

Makale detayları

Compositional Dependence of Properties of rf-Sputtered Bi-Sr-Ca-Cu-O thin Films

Yazarlar:

Ayhan GÜLDESTE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 1998 Vol.22 Issue 11, pp.1059-1068

Belge Tipi:

Makale

Yayın Tarihi:

12/1997

Belge Dili:

Türkçe

Document ID (Org No.):

2000763678

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

Compositional dependence of superconducting transition  temperature (Tc) of Bi2Sr3-xCaxCu2O8+x thin films grown by  rf sputtering on single crystal MgO substrates has been investigated.   Films have been assessed by considering their initial composition in  terms of (Ca+Sr)/Bi ratio with their atomic concentration normalized  to Cu:2.  It was found that Tc-zero of around 80K is achievable for  (Ca+Sr)/Bi ratio between 1.4 and 1.65, while Tc-onset remains above  90K. Quenching from high temperature increased Tc-zero, but it may  result in a deterioration in resistivity due to micro cracks induced  by the thermal stress.

 

Compositional dependence of superconducting transition  temperature (Tc) of Bi2Sr3-xCaxCu2O8+x thin films grown by  rf sputtering on single crystal MgO substrates has been investigated.   Films have been assessed by considering their initial composition in  terms of (Ca+Sr)/Bi ratio with their atomic concentration normalized  to Cu:2.  It was found that Tc-zero of around 80K is achievable for  (Ca+Sr)/Bi ratio between 1.4 and 1.65, while Tc-onset remains above  90K. Quenching from high temperature increased Tc-zero, but it may  result in a deterioration in resistivity due to micro cracks induced  by the thermal stress.

Makale detayları

Compositional Dependence of Properties of rf-Sputtered Bi-Sr-Ca-Cu-O thin Films

Yazarlar:

Ayhan GÜLDESTE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 1998 Vol.22 Issue 11, pp.1059-1068

Belge Tipi:

Makale

Yayın Tarihi:

12/1997

Belge Dili:

Türkçe

Document ID (Org No.):

2000763678

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Turk. J. Phys.

22

(1998)

1059-1068. Full text: pdf Other articles published in the same issue: Turk. J. Phys.

vol.22

iss.11.

Sayı

Makale detayları

Compositional Dependence of Properties of rf-Sputtered Bi-Sr-Ca-Cu-O thin Films

Yazarlar: Ayhan GÜLDESTE

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 1998 Vol.22 Issue 11, pp.1059-1068

Belge Tipi: Makale

Yayın Tarihi: 12/1997

Belge Dili: Türkçe

Document ID (Org No.): 2000763678

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Turk. J. Phys.

22

(1998)

1059-1068. Full text: pdf Other articles published in the same issue: Turk. J. Phys.

vol.22

iss.11.

Sayı

Yazarlar:

Ayhan GÜLDESTE

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 1998 Vol.22 Issue 11, pp.1059-1068

Belge Tipi:

Makale

Yayın Tarihi:

12/1997

Belge Dili:

Türkçe

Document ID (Org No.):

2000763678

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101