NO ANTIFERROMAGNETIC REORDERING AT LOW-TEMPERATURE IN PURE YBA2CU3O6+X

被引：1
|
作者：
CASALTA, H
SCHLEGER, P
BRECHT, E
MONTFROOIJ, W
ANDERSEN, NH
LEBECH, B
SCHMAHL, WW
FUESS, H
LIANG, RX
HARDY, WN
WOLF, T
机构：
[1] TH DARMSTADT,FACHBEREICH MAT WISSENSCH,D-64287 DARMSTADT,GERMANY
[2] UNIV BRITISH COLUMBIA,DEPT PHYS,VANCOUVER,BC V6T 1Z1,CANADA
[3] KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH,ITP,D-76021 KARLSRUHE,GERMANY
来源：
PHYSICA C | 1994年 / 235卷
关键词：
D O I：
10.1016/0921-4534(94)92037-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic ordering has been investigated by neutron scattering on an YBa2Cu3O6+x single crystal with x=0.1 and x=0.18, and an Al doped YBa2(CU2.86Al0.14)O-6.25 crystal. For the undoped crystal an antiferromagnetic ordering transition (AFI) was observed at T-N=410 K and 368 K (respectively for x=0.1 and x=0.18), but no second antiferromagnetic transition was found down to 2 K. In contrast, an antiferromagnetic reordering (AFII) was observed for the aluminum doped sample below T-2=8 K. This shows the high sensitivity of this second phase to impurities and indicates that this reordering is not necessarily an intrinsic property of YBa2Cu3O6+x.
引用
收藏
页码：1623 / 1624
页数：2
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