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EFFECT OF MN AND NI ON THE ELECTRICAL-RESISTIVITY OF AMORPHOUS FE(80-X-Y)NIYMNXB12SI8 ALLOYS

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Title EFFECT OF MN AND NI ON THE ELECTRICAL-RESISTIVITY OF AMORPHOUS FE(80-X-Y)NIYMNXB12SI8 ALLOYS
 
Creator NIGAM, AK
SHARMA, N
PRASAD, S
CHANDRA, G
SHRINGI, SN
KRISHNAN, R
ROUGIER, P
 
Subject b-si alloys
metallic glasses
transport-properties
cr
temperature
magnetoresistance
ribbons
minimum
 
Description Electrical resistivity studies have been carried out on a-Fe(80-x-y)NiyMnxB12Si8 alloys (0 < x < 5.5; 20 < y < 50). It is found that the resistivity behavior in these alloys is different in some aspects from those that contain Cr instead of Mn. In the Cr containing alloys a T2 term in the resistivity expression is found to be dominant at temperatures above T(min), while in Mn containing alloys the dominant term has an effective power of less than 1.5. It is conjectured that in Cr containing alloys it is the simultaneous presence of a negative T3/2 and a positive T2 term which leads to a second temperature minimum in resistivity at high temperature ( > 100 K). In the Mn containing alloys, however, we do not find evidence for the presence of two such terms of opposite signs. It was also found that the presence of Ni increases the positive temperature coefficient of resistivity, but the increase was stronger in Mn containing alloys.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-24T20:42:06Z
2011-12-26T12:48:07Z
2011-12-27T05:45:04Z
2011-07-24T20:42:06Z
2011-12-26T12:48:07Z
2011-12-27T05:45:04Z
1991
 
Type Article
 
Identifier JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 102(3), 297-304
0304-8853
http://dx.doi.org/10.1016/0304-8853(91)90142-W
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6533
http://hdl.handle.net/10054/6533
 
Language en