Finite-size effect of antiferromagnetic transition and electronic structure in LiFePO 4
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
86
Journal Issue
16
Date Issued
2012
Author(s)
Abstract
The finite-size effect on the antiferromagnetic (AF) transition and electronic configuration of iron has been observed in LiFePO 4. Determination of the scaling behavior of the AF transition temperature (T N) versus the particle-size dimension (L) in the critical regime 1-T N(L)T N∼L -1 reveals that the activation nature of the AF ordering strongly depends on the surface energy. In addition, the effective magnetic moment that reflects the electronic configuration of iron in LiFePO 4 is found to be sensitive to the particle size. An alternative structural view based on the polyatomic ion groups of PO43- is proposed. © 2012 American Physical Society.
SDGs
Type
journal article