Local and nonlocal magnetic behavior of dilute manganese-doped nickel alloys
J. Appl. Phys. 105, 083918 (2009); doi:10.1063/1.3116154
Published 24 April 2009
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We report magnetic behavior of a dilute ferromagnetic alloy Ni1−xMnx, 0<x<25%. Magnetic circular dichroism (MCD) is used to examine the local magnetic moment on each element, and superconducting quantum interference device magnetometry is used to evaluate the magnetization of the alloy as a whole. Both MCD and hysteresis loops show a collapse in moment at x
15% measured at 100 K. The Mn doping appears to disturb the long-range ordering of the host nickel spins which, in the concentration range studied, is a precursor disordered ferromagnet prior to a spin-glass phase.
©2009 American Institute of Physics
15% measured at 100 K. The Mn doping appears to disturb the long-range ordering of the host nickel spins which, in the concentration range studied, is a precursor disordered ferromagnet prior to a spin-glass phase.
©2009 American Institute of Physics
| History: | Received 18 November 2008; accepted 5 March 2009; published 24 April 2009 |
| Permalink: |
http://link.aip.org/link/?JAPIAU/105/083918/1 |
KEYWORDS and PACS
doping,
ferromagnetic materials,
magnetic circular dichroism,
magnetic moments,
magnetisation,
manganese alloys,
nickel alloys,
spin glasses
- 75.30.Cr
Saturation moments and magnetic susceptibilities in magnetically ordered materials - 75.50.Cc
Ferromagnetism of nonferrous metals and alloys - 78.20.Ls
Magnetooptical effects (bulk materials/thin films) - 75.60.Ej
Magnetization curves, hysteresis, Barkhausen and related effects - 75.50.Lk
Spin glasses and other random magnets - 61.72.Bb
Theories and models of crystal defects - 61.72.up
Doping and impurity implantation in other materials - YEAR: 2009
RELATED DATABASES
PUBLICATION DATA
0021-8979 (print)
1089-7550 (online)
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