| dc.contributor.author |
Mohapatra, M. |
|
| dc.contributor.author |
Pandey, B. |
|
| dc.contributor.author |
Upadhyay, C. |
|
| dc.contributor.author |
Anand, S. |
|
| dc.contributor.author |
Das, R.P. |
|
| dc.contributor.author |
Verma, H.C. |
|
| dc.date.accessioned |
2018-10-01T12:22:17Z |
|
| dc.date.available |
2018-10-01T12:22:17Z |
|
| dc.date.issued |
2005 |
|
| dc.identifier.citation |
Journal Of Magnetism And Magnetic Materials, 295(1), 2005: 44-50 |
|
| dc.identifier.issn |
0304-8853 |
|
| dc.identifier.uri |
http://ore.immt.res.in/handle/2018/1157 |
|
| dc.description.abstract |
Vibrating sample magnetometer (VSM) and Mossbauer spectroscopy are used to characterize the magnetic behaviour of fine magnetite particles obtained from (i) pure goethite and (ii) Ni-doped goethite, in ammoniacal solution. The latter sample has 0.4 wt% Ni which has significantly changed the properties of the sample. The Ni-doped magnetite shows a much higher overoccupancy of tetrahedral sites by iron atoms as compared to the undoped sample. TEM study shows that presence of Ni ions leads to narrower size distribution of magnetite particles as compared to the magnetite obtained from undoped goethite. The coercive field is also affected by presence of Ni, being only 105 Oe for the Ni-doped magnetite as against 170 Oe in the undoped sample. (c) 2005 Elsevier B.V. All rights reserved. |
|
| dc.language |
en |
|
| dc.publisher |
Elsevier |
|
| dc.relation.isreferencedby |
SCI |
|
| dc.rights |
Copyright [2005]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository. |
|
| dc.subject |
Materials Sciences |
|
| dc.subject |
Physical Sciences |
|
| dc.title |
Effect of Ni doping on the properties of fine magnetite particles |
|
| dc.type |
Journal Article |
|
| dc.affiliation.author |
IIT Kanpur, Kanpur-208016, Uttar Pradesh, India |
|