Growth of superconducting Pb0.5Sr2.5Y0.5Ca0.5Cu2Oy single crystals from charges containing silver

被引：2
作者：
Aswal, DK
Narang, SN
Gupta, SK
Mudher, KDS
Purandare, SC
Sabharwal, SC
机构：
[1] BHABHA ATOM RES CTR,DIV FUEL CHEM,MUMBAI 400085,MAHARASHTRA,INDIA
[2] BHABHA ATOM RES CTR,TECH PHYS & PROTOTYPE ENGN DIV,MUMBAI 400085,MAHARASHTRA,INDIA
[3] TATA INST FUNDAMENTAL RES,MUMBAI 400005,MAHARASHTRA,INDIA
来源：
JOURNAL OF CRYSTAL GROWTH | 1997年 / 179卷 / 3-4期
关键词：
superconductivity; single crystal growth by flux technique;
D O I：
10.1016/S0022-0248(97)00194-2
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Single crystals of Pb(0.5)Sq(2.5)Y(0.5)Ca(0.5)Cu(2)O(y) have been grown by a self-flux technique with excess of CuO and adding 10% (by wt) of AgNO3 to the starting charge. The grown crystals exhibited tetragonal structure having lattice parameters a = 3.813 Angstrom and c = 11.785 Angstrom. The crystals are found to undergo a metal to superconductor transition at 50 K. Crystals grown without any silver addition did not shown any transition to the superconducting down to 15 K. These results show that the addition of silver facilitates the oxygenation of crystals.
引用
收藏
页码：665 / 668
页数：4
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