Study of the effect of SHI irradiation on nanocrystalline vacancy doped (La,Sr)(Mn,Fe)O system and its comparison with hydrostatic pressure using Mossbauer spectroscopy

被引：0
作者：
Yadav, Nisha [3 ]
Baid, Payal [3 ]
Chandra, Usha [1 ,3 ]
Kumar, Ravi [2 ]
Asokan, K. [2 ]
机构：
[1] Univ Rajasthan, High Pressure Phys Lab, Jaipur 302055, Rajasthan, India
[2] Inter Univ Accelerator Ctr, New Delhi 110067, India
[3] Univ Rajasthan, Dept Phys, Jaipur 302055, Rajasthan, India
来源：
HYPERFINE INTERACTIONS | 2008年 / 183卷 / 1-3期
关键词：
Manganite; Swift heavy ion; Irradiation; X-ray diffraction; Mossbauer spectroscopy; Hydrostatic pressure;
D O I：
10.1007/s10751-008-9742-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The swift heavy ion irradiated La0.9Mn0.8Fe0.2O3 (La-deficient) system with 200 Mev Ag16+ ion beam at fluence 5 x 10(12) ions/cm(2) was studied with X-ray diffraction (XRD) and Mossbauer spectroscopic measurements. Comparison of Mossbauer parameters with those of unirradiated sample showed an increase in line width on irradiation which may be due to reduction in particle size as well as due to creation of defects. An increase in quadrupole splitting with no appreciable change in isomer shift showed ion-induced structural disorder in the material after irradiation. An attempt is made to compare the effect of fluence with the hydrostatic pressure on the sample.
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页码：141 / 146
页数：6
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