In:
physica status solidi c, Wiley, Vol. 4, No. 10 ( 2007-09), p. 3530-3533
Abstract:
Recently, we have found that 100–200 MeV heavy ion irradiation induces ferromagnetic state in B2 type Fe‐50at.%Rh intermetallic alloy below antiferromagnetic‐ferromagnetic transition temperature of unirradiated alloy. In order to characterize the lattice defects induced by swift heavy ion irradiation, we performed Doppler‐broadening experiments for unirradiated Fe‐Rh alloy and that irradiated with 200 MeV 136 Xe ions by using a slow positron beam. The S‐parameter increases gradually with increasing the ion‐fluence up to 5 x 10 12 ions.cm –2 . Above 5 x 10 12 ions.cm –2 , the rate of S‐parameter increase is slowly saturated. From the dependence of S‐parameter on ion‐fluence, we have calculated the concentration of vacancy‐type defects surviving in the specimen, which is much smaller than that estimated by TRIM‐code. The result implies that anti‐site type defects dominantly remain in the irradiated specimen, which stabilize the ferromagnetic state in Fe‐50at.%Rh alloy. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Type of Medium:
Online Resource
ISSN:
1862-6351
,
1610-1642
DOI:
10.1002/pssc.200675829
Language:
English
Publisher:
Wiley
Publication Date:
2007
detail.hit.zdb_id:
2105580-4
detail.hit.zdb_id:
2102966-0
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