HIGH DIELECTRIC-CONSTANT AND NONLINEAR ELECTRIC-RESPONSE IN NONMETALLIC YBA2CU3O6+DELTA

被引：57

作者：

REY, CM ^{[1
]}

MATHIAS, H ^{[1
]}

TESTARDI, LR ^{[1
]}

SKIRIUS, S ^{[1
]}

机构：

[1] FLORIDA STATE UNIV,DEPT CHEM,TALLAHASSEE,FL 32306

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.45.10639

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric constants from 10(2) to 10(6) are found in room-temperature, ceramic, nonmetallic YBa2CU3O6+delta (delta approximately 0-0.4). The frequency, temperature, and electric-field dependencies of the dielectric response, as well as the quasistatic current-voltage behavior of this material, are reported. We show that the high polarizability is tied to a short (less-than-or-equal-to 100 angstrom) length scale, persists to microwave frequencies, and is accompanied by a strong electric-field dependence.

引用

页码：10639 / 10646

页数：8

共 20 条

[1] POSSIBILITY OF OPTICAL EVIDENCE FOR CHARGE-TRANSFER EXCITATIONS IN YBA2CU3O7-DELTA [J].