NEUTRON-INDUCED MICROWAVE LOSS IN CERAMIC YBA2CU3O7-DELTA

被引：5

作者：

COOKE, DW

JAHAN, MS

BROWN, RD

OTT, KC

GRAY, ER

SMITH, JL

WILLIS, JO

BENNETT, BL

MAEZ, MA

PETERSON, EJ

HULTS, WL

COULTER, JY

PORTIS, AM

PIEL, H

KLEIN, N

MULLER, G

HEIN, M

机构：

[1] UNIV CALIF BERKELEY,BERKELEY,CA 94720

[2] BERG UNIV WUPPERTAL,WUPPERTAL,GERMANY

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 24期

关键词：

D O I：

10.1063/1.103256

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An increase by over three orders of magnitude from 0.58 mΩ to 1.17 Ω was observed at 4.0 K in the 3 GHz microwave surface resistance of ceramic YBa2Cu3O7-δ following exposure to neutrons. The transport resistivity of an unirradiated pellet was linear in temperature down to Tc with a room-temperature value of 2.13 mΩ cm and a resistivity extrapolated to 4.0 K of 0.53 mΩ cm. Following irradiation, the resistivity rose with decreasing temperature from a room-temperature value of 1.5 Ω cm to a maximum at around 45 K with little change evident at Tc. These results, in conjunction with eddy current, susceptibility, iodometric titration, and thermally stimulated luminescence measurements on irradiated and unirradiated samples, collectively suggest that the effect of neutron irradiation has been to decrease intergranular coupling without the development of an insulating phase.

引用

页码：2462 / 2464

页数：3

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