Diffusion-limited kinetics of the antiferromagnetic to ferrimagnetic -transition in Fe_1-xS Academic Article

abstract

• Fe1xS (0.08x0.11) exhibits a simultaneous magneto-structural -transition at approximately 200C. Time-dependent magnetization measurements demonstrate the -transition can be accurately modeled by a stretched exponential function, consistent with a nucleation-free, continuous reordering of the vacancy-bearing sublattice. The experimental result is supported by kinetic Monte Carlo simulations that confirm the activation energy for the transition to be 1.10.1eVrepresenting the iron vacancy migration energy in ordered Fe1xS. A mechanistic understanding of the -transition enables potential functional uses of Fe1xS such as thermally activated magnetic memory, switches, or storage.

authors

• Krishnamoorthy, Aravind

published proceedings

• APPLIED PHYSICS LETTERS

author list (cited authors)

• Herbert, F. W., Krishnamoorthy, A., Yildiz, B., & Van Vliet, K. J.

citation count

• 18

complete list of authors

• Herbert, F William||Krishnamoorthy, Aravind||Yildiz, Bilge||Van Vliet, Krystyn J

publication date

• March 2015

publisher

• AIP Publishing  Publisher

published in

• Applied Physics Letters  Journal

keywords

• 51 Physical Sciences
• 5103 Classical Physics
• 7 Affordable And Clean Energy

Digital Object Identifier (DOI)

• 10.1063/1.4913201

start page

• 092402

volume

• 106

issue

• 9

URL

• http://dx.doi.org/10.1063/1.4913201