NEW THALLIUM-LEAD BASED LAYERED CUPRATES AND THEIR SUPERCONDUCTIVITY

被引：7

作者：

CHEN, ZY

TANG, YQ

LI, YF

PEDERSON, DO

SHENG, ZZ

机构：

[1] UNIV SCI & TECHNOL CHINA, DEPT APPL CHEM, HEFEI 230026, PEOPLES R CHINA

[2] E CHINA INST CHEM TECHNOL, CTR ANAL & RES, SHANGHAI 200237, PEOPLES R CHINA

来源：

MATERIALS RESEARCH BULLETIN | 1992年 / 27卷 / 09期

关键词：

THALLIUM; LEAD; STRONTIUM; NEODYMIUM; CERIUM; CUPRATE; SUPERCONDUCTOR;

D O I：

10.1016/0025-5408(92)90243-S

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new series of 1222-type (Tl,Pb)-based layered cuprate compounds (Tl,Pb)Sr2(Nd,Ce)2Cu2Oz have been successfully synthesized in the pure form and identified by powder X-ray diffraction analyses. The structure of the compounds is directly related to that of Nb-1222 NbSr2(Nd,Ce)2Cu2Oz with tetragonal body-center lattice. The lattice parameters are a = 3.855 angstrom, c = 29.47 angstrom for (Tl0.7Pb0.3)Sr2(Nd0.5Ce0.5)2Cu2Oz, and a = 3.853 angstrom, c = 29.61 angstrom for (Tl0.7Pb0.3)Sr2(Nd0.75Ce0.25)2Cu2Oz. Resistance measurements showed that (Tl1-xPbx)Sr2(Nd0.75Ce0.25)2Cu2Oz (x less-than-or-equal-to 0-6) prepared by the typical procedure exhibit superconductivity with Tc(onset) in the range 30-40 K.

引用

页码：1049 / 1055

页数：7

共 15 条

[1] A NEW TYPE OF CRYSTAL-STRUCTURE IN THE PB-PR-SR-CU-O SYSTEM [J].

ADACHI, S ;

INOUE, O ;

KAWASHIMA, S ;

ADACHI, H ;

ICHIKAWA, Y ;

SETSUNE, K ;

WASA, K .

PHYSICA C, 1990, 168 (1-2) :1-7

[2] SUPERCONDUCTIVITY AT 28-K IN A CUPRATE WITH A NIOBIUM OXIDE INTERMEDIARY LAYER [J].

CAVA, RJ ;

KRAJEWSKI, JJ ;

TAKAGI, H ;

ZANDBERGEN, HW ;

VANDOVER, RB ;

PECK, WF ;

HESSEN, B .

PHYSICA C, 1992, 191 (1-2) :237-242

[3]

CHEN Z, UNPUB

[4] NEW FAMILY OF THALLIUM CUPRATE SUPERCONDUCTORS NOT CONTAINING CALCIUM OR BARIUM - TLSRN+1-XLAXCUNO2N+3+DELTA, TLSRN+1-XPRXCUNO2N+3+DELTA, TLSRN+1-XNDXCUNO2N+3+DELTA [J].

GANGULI, AK ;

MANIVANNAN, V ;

SOOD, AK ;

RAO, CNR .

APPLIED PHYSICS LETTERS, 1989, 55 (25) :2664-2666

[5] FORMATION OF A NEW SERIES OF 1222 LAYERED CUPRATES MSR2(LNR)2CU2OY [J].

LI, RK ;

ZHU, YJ ;

XU, C ;

CHEN, ZY ;

QIAN, YT ;

FAN, CG .

JOURNAL OF SOLID STATE CHEMISTRY, 1991, 94 (01) :206-209

[6]

LI RK, 1991, PHYSICA C, V176, P19, DOI 10.1016/0921-4534(91)90689-V

[7]

MARTIN C, 1989, MOD PHYS LETT B, V3, P990

[8]

MURAYAMA E, 1988, J APPL PHYS, V27, pL1623

[9]

Sheng Z. Z., 1990, Modern Physics Letters B, V4, P1281, DOI 10.1142/S0217984990001616

[10]

Sheng Z. Z., 1990, Modern Physics Letters B, V4, P967, DOI 10.1142/S0217984990001203

← 1 2 →