NEW FAMILY OF LAYERED CUPRATES WITH 1222 STRUCTURE - (BI,CU)SR2(LN,CE)2CU2OZ (LN=PR,ND,SM,EU,GD,DY,HO,ER,TM AND Y)

Authors
SASAKURA H AKAGI Y HAYASHI Y
Citation
H. Sasakura et al., NEW FAMILY OF LAYERED CUPRATES WITH 1222 STRUCTURE - (BI,CU)SR2(LN,CE)2CU2OZ (LN=PR,ND,SM,EU,GD,DY,HO,ER,TM AND Y), Physica. B, Condensed matter, 194, 1994, pp. 2273-2274
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
2
Pages
2273 - 2274
Database
ISI
SICI code
0921-4526(1994)194:<2273:NFOLCW>2.0.ZU;2-A
Abstract
A new family of layered cuprates with 1222 structure has been synthesi zed in the (Bi,Cu)Sr2(Ln,Ce)2Cu2Oz (Ln=Pr,Nd,Sm,Eu,Gd,Dy,Ho,Er,Tm and Y) systems. The almost-single phase for each case could be attained at the nominal composition of (Bi0.25Cu0.75)Sr2LnCeCu2Oz. The samples we re semiconductors, even after oxygen-annealing a 500-degrees-C for 24 h under a high pressure of 200 atm. The temperature dependence of the resistivity suggested that the transport process was followed by a thr ee-dimensional variable range hopping conduction.