Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

12-11-2012

Journal or Book Title

Philosophical Magazine

Volume

92

Issue

35

First Page

4492

Last Page

4497

DOI

10.1080/14786435.2012.714084

Abstract

We present ac susceptibility measurements with the frequency spanning three orders of magnitude on single grain, icosahedral R–Mg–Zn (R = rare earth) quasicrystals. The freezing temperature in Gd-based, Heisenberg spin glasses in this family increases by ∼2% with a frequency increase from 10 Hz to 10 kHz, whereas the freezing temperature in the non-Heisenberg members of the family is significantly more responsive to the frequency change (by 16–22%), suggesting that an additional magnetic anisotropy distribution in the non-Heisenberg spin glasses causes changes in the low frequency magnetic dynamics.

Comments

This article is published by Taylor & Francis as Bud'ko, Sergey L., and Paul C. Canfield. "Frequency dependence of the spin glass freezing temperatures in icosahedral R–Mg–Zn (R= rare earth) quasicrystals." Philosophical Magazine 92, no. 35 (2012): 4492-4497. DOI: 10.1080/14786435.2012.714084.

Rights

This material is published by permission of the US DOE under Contract No. DE-AC02-07CH11358. The US Government retains for itself, and others acting on its behalf, a paid-up, non-exclusive, and irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government.

Language

en

File Format

application/pdf

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