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Electrical-transport of YBA2(CU1-XCOX)3O7+DELTA - a kondo type behavior
DSpace at IIT Bombay
View Archive Info| Field | Value | |
| Title |
Electrical-transport of YBA2(CU1-XCOX)3O7+DELTA - a kondo type behavior
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| Creator |
WALIA, R
BHATIA, SN LANCHESTER, PC |
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| Subject |
temperature
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| Description |
New data on resistivity and thermopower for YBa2(Cu1-xCo(x)3O7+delta (0 less-than-or-equal-to x less-than-or-equal-to 0.12) over an extended temperature range 20-600K has been used to study systematically the effect of transition metal impurities in the YBa2Cu3O7(Y123) system. In order to distinguish between possible scattering mechanisms the data has been fitted to theoretical results based on Mott and Kondo models. Although resistivity can be fitted reasonably well to both models the thermopower clearly favour a Kondo model. The results suggest that the antiferromagnetic spin correlations between conduction electron and localised moments associated with 3d ions play a prominent role in this system.
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| Publisher |
ELSEVIER SCIENCE BV
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| Date |
2011-10-22T20:02:35Z
2011-12-15T09:10:47Z 2011-10-22T20:02:35Z 2011-12-15T09:10:47Z 1994 |
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| Type |
Article; Proceedings Paper
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| Identifier |
PHYSICA B,194,1155-1156
0921-4526 http://dx.doi.org/10.1016/0921-4526(94)90907-5 http://dspace.library.iitb.ac.in/xmlui/handle/10054/14976 http://hdl.handle.net/100/1655 |
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| Source |
20th International Conference on Low Temperature Physics,EUGENE, OR,AUG 04-11, 1993
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| Language |
English
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