EFFECT OF ALPHA-IRRADIATION ON POLYCRYSTALLINE BI-2223 SUPERCONDUCTORS

被引：11

作者：

BANDYOPADHYAY, SK

BARAT, P

SEN, P

DE, U

DE, A

MUKHOPADHYAY, PK

KAR, SK

MAJUMDAR, CK

机构：

[1] SAHA INST NUCL PHYS,CALCUTTA 700064,INDIA

[2] SN BOSE NATL CTR BASIC SCI,CALCUTTA 700064,INDIA

来源：

PHYSICA C | 1994年 / 228卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90180-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Polycrystalline samples of Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06O10+x ((Bi, Pb)-2223) with T(c)(R=0) = 112 K have been irradiated by alpha particles of 40 MeV energy up to a maximum dose of 1.5 x 10(16) alpha/cm2. T(c) is observed to decrease with increasing dose. At the highest dose, semiconducting behavior is observed in resistivity measurements, and X-ray diffraction and scanning electron microscopy indicate partial amorphization. T(c) has not been recovered by annealing. The possible mechanism of radiation damage in (Bi, Pb)-2223 is discussed; it appears to be different from the mechanism in Bi2Sr2CaCu2O8+x (Bi-2212).

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页码：109 / 114

页数：6

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