Induction of high-temperature superconductivity in pulsed laser ablated La2CuO4 thin films by room temperature chemical oxidation

被引：12
|
作者：
Lees, ST
Edwards, PP
Gameson, I
Jones, MO
Slaski, M
Rial, C
Amador, U
Moran, E
机构：
[1] UNIV BIRMINGHAM,SCH CHEM,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND
[2] UNIV BIRMINGHAM,SCH PHYS & SPACE RES,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND
[3] UNIV COMPLUTENSE MADRID,FAC CIENCIAS QUIM,DEPT QUIM INORGAN,E-28040 MADRID,SPAIN
[4] UNIV COMPLUTENSE MADRID,FAC CIENCIAS QUIM,CAI DIFRACC RAYOSX,E-28040 MADRID,SPAIN
来源：
ADVANCED MATERIALS | 1997年 / 9卷 / 10期
关键词：
D O I：
10.1002/adma.19970091013
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Communication: Facile fabrication of high-temperature superconducting La2CuO4 thin films through the combination of two seemingly disparate techniques is reported. Pulsed laser ablation is used to produce stoichiometric, c-axis oriented La2CuO4 thin films similar to 3700 Angstrom in thickness. The convenient method of controlled room-temperature chemical oxidation using aqueous sodium bromite is then utilized to introduce excess holes in the valance band of La2CuO4. This induces superconductivity in the otherwise antiferromagnetic semiconductor.
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收藏
页码：823 / &
页数：5
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