MAGNETIC, STRUCTURAL, AND RAMAN CHARACTERIZATION OF RBA2CU2NBO8(R=PR, LA, OR ND)

被引：29

作者：

BENNAHMIAS, M ^{[1
]}

OBRIEN, JC ^{[1
]}

RADOUSKY, HB ^{[1
]}

GOODWIN, TJ ^{[1
]}

KLAVINS, P ^{[1
]}

LINK, JM ^{[1
]}

SMITH, CA ^{[1
]}

SHELTON, RN ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.46.11986

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

PrBa2Cu2NbO8 (PrBCNO) is an insulator analogous to the PrBa2Cu3O7 system having a similar structure but with NbO2 planes replacing the CuO chains. Single-phase polycrystalline samples of RBCNO have been synthesized with R = La, Pr, or Nd. These materials were characterized using magnetization, thermal gravimetric analysis in different atmospheres, x-ray diffraction, and Raman spectroscopy. The PrBCNO samples show a signature in the magnetization of a magnetic ordering at 12 K. No such magnetic phase transition is observed down to 2 K in NdBa2Cu2NbO8.

引用

页码：11986 / 11992

页数：7

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