Ponpandian, N. ; Narayanasamy, A. ; Chinnasamy, C. N. ; Sivakumar, N. ; Greneche, J. -M. ; Chattopadhyay, K. ; Shinoda, K. ; Jeyadevan, B. ; Tohji, K. (2005) Neel temperature enhamcement in nanostructured nickel zinc ferrite Applied Physics Letters, 86 (19). 192510_1-192510_3. ISSN 0003-6951
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Official URL: http://link.aip.org/link/?APPLAB/86/192510/1
Related URL: http://dx.doi.org/10.1063/1.1925755
Abstract
The Neel temperature of Ni0.5Zn0.5Fe2O4 spinel ferrite increases significantly from 538 K in the bulk state to 592 K when the grain size is reduced to 16 nm by milling in a high-energy ball mill. This has been attributed to an increase in the AB superexchange interaction strength due to a possible enhancement in the magnetic ion concentration in the A-site on milling, as is evident from extended x-ray absorption fine structure and in-field MÖssbauer measurements.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 6594 |
| Deposited On: | 22 Oct 2010 06:31 |
| Last Modified: | 30 May 2011 07:16 |
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