Ghosh, N. ; Bharathi, A. ; Satya, A. T. ; Sharma, S. ; Mani, Awadhesh ; Sarguna, R. M. ; Sornadurai, D. ; Sastry, V. S. ; Sundar, C. S. (2010) Kohler's rule in Ba1-xKxFe2As2 Solid State Communications, 150 (39-40). pp. 1940-1943. ISSN 0038-1098
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.ssc.2010.07.018
Abstract
The validity of Kohler's rule has been investigated in Ba1-xKxFe2As2 single crystals for x=0.0 and x~0.02 grown by the self flux growth method using excess FeAs as flux. A sharp peak observed in specific heat measurement around ~136 K has been attributed to a structural transition accompanying the spin density wave (SDW) transition. An additional slope change in the resistivity profile at 0 and 6 T is observed around 70 K in the K containing sample. Measurement of magnetoresistance as a function of magnetic field (B) up to 9 T indicates that Kohler's rule is obeyed only below 50 K for x~0.02 but it is not obeyed for x=0.0. Based on Hall effect measurements the observed difference between the pristine and K doped samples is rationalized.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | B. Crystal Growth; D. Heat Capacity; D. Electronic Transport |
| ID Code: | 53225 |
| Deposited On: | 05 Aug 2011 10:40 |
| Last Modified: | 05 Aug 2011 10:40 |
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