GROUND-STATE OF ER-3+ IN ERBA2CU3O6 - AN ESR STUDY

被引：7

作者：

HUANG, MX

BARAK, J

BHAGAT, SM

PENG, JL

机构：

[1] UNIV MARYLAND,CTR SUPERCONDUCTIV RES,DEPT PHYS,COLL PK,MD 20742

[2] SOREQ NUCL RES CTR,IL-70600 YAVNE,ISRAEL

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 117卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(92)90311-B

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electron spin resonance of single crystals of ErBa2Cu3O6 has been measured at low temperatures and frequencies of 36.3, 25.5 and 9.9 GHz with the applied field being rotated from the sample's ab plane to the c-axis. The spectrum appears to be composed of two resonances and is interpreted as a sum of two Kubo-Toyabe lines. The parameters obtained here exhibit little anisotropy and are in reasonable agreement with previous measurements on ErBa2Cu3O6 and ErzY1-zBa2Cu3O6 powder specimens. This confirms our earlier suggestion that the two lowest doublets of the Er3+ crystal field levels are very close in energy (almost-equal-to 1 K).

引用

页码：195 / 202

页数：8

共 21 条

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[2]

ABRAGAM A, 1970, ELECT PARAMAGNETIC R, P521

[3] OXYGEN-VACANCY INDUCED CHANGES OF THE CRYSTAL-FIELD INTERACTION IN ERBA2CU3OX (6.1 LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 7.0) DETERMINED BY INELASTIC NEUTRON-SCATTERING [J].