The influence of fluorine on the structures and properties of Pr2-xSrxCuO4-y (x=0.0, 0.4, 1.0)

被引：6

作者：

Yang, JL

Liang, JK

Jin, D

Ying, S

Tang, WH

Rao, GH

机构：

[1] ACAD SINICA,INT CTR MAT PHYS,SHENYANG 110015,PEOPLES R CHINA

[2] CHINESE ACAD SCI,CTR CRYOGEN,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 06期

关键词：

D O I：

10.1088/0953-8984/9/6/011

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Introducing F into the lattices of the copper oxides Pr2CuO4, Pr1.6Sr0.4CuO4 and PrSrCuO4-y is accomplished via a low-temperature fluorination reaction using CuF2 as the fluorinating reagent. The oxyfluorides retain the structures of their precursors, but striking lattice expansions are observed. No trace of SrF2 was detected in the fluorinated products. F doping was successfully used to induce superconductivity in the oxyfluoride PrSrCu(O, F)(4-delta) (T-c = 15 K) with a reduced CuO2 plane and in the presence of apical anions, but failed to optimize the carrier density and induce superconductivity in Pr2CuO4-xFx and Pr1.6Sr0.4CuO4-xFx.

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页码：1249 / 1259

页数：11

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