Document Type

Article

Publication Date

2012

Journal or Book Title

Journal of Applied Physics

Volume

111

Issue

7

First Page

07E126

DOI

10.1063/1.3673848

Abstract

57Fe Mössbauer spectroscopy was used to study single-crystals of K0.8Fe1.76Se2.00 from 6 K to 673 K. At 6 K, the hyperfine field (B hf) is canted away from the c-axis by 18 ± 3°. The temperature dependence of B hf follows a spin wavemodel with a spin excitation gap of 9 ± 1 meV. A sudden increase in the linewidth and a corresponding drop in (1/2)eQVzz at TN  = 532 K are indications of strong coupling between the magnetic and structural transitions.

Comments

The following article appeared in Journal of Applied Physics 111 (2012): 07E126 and may be found at http://dx.doi.org/10.1063/1.3673848.

Rights

Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

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