Chaudhary, Sujeet ; Chattopadhyay, M. K. ; Singh, Kanwal Jeet ; Roy, S. B. ; Chaddah, P. ; Sampathkumaran, E. V. (2002) Thermomagnetic history effects in SmMn2Ge2 Physical Review B: Condensed Matter and Materials Physics, 66 (1). 014424_1-014424_6. ISSN 1098-0121
Full text not available from this repository.
Official URL: http://prb.aps.org/abstract/PRB/v66/i1/e014424
Related URL: http://dx.doi.org/10.1103/PhysRevB.66.014424
Abstract
The intermetallic compound SmMn2Ge2, displaying multiple magnetic phase transitions, is investigated in detail for its magnetization behavior near the 145-K first-order ferromagnetic-to-antiferromagnetic transition occuring on cooling, in particular, for thermomagnetic history effects in the magnetization data. The most unusual finding is that the thermomagnetic irreversibility, [=MFCW(T)-MZFC(T)] at 135 K is higher in intermediate magnetic-field strengths. By studying the response of the sample (i.e., thermomagnetic irreversibility and thermal hysteresis) to different histories of application of magnetic field and temperature, we demonstrate how the supercooling and superheating of the metastable magnetic phases across the first-order transition at 145 K contribute to overall thermomagnetic irreversibility.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 45751 |
Deposited On: | 29 Jun 2011 03:27 |
Last Modified: | 29 Jun 2011 03:27 |
Repository Staff Only: item control page