TY - JOUR
T1 - Defect induced modification of structural, topographical and magnetic properties of zinc ferrite thin films by swift heavy ion irradiation
AU - Raghavan, Lisha
AU - Joy, P. A.
AU - Vijaykumar, B. Varma
AU - Ramanujan, R. V.
AU - Anantharaman, M. R.
N1 - Publisher Copyright:
© 2017
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Swift heavy ion irradiation provides unique ways to modify physical and chemical properties of materials. In ferrites, the magnetic properties can change significantly as a result of swift heavy ion irradiation. Zinc ferrite is an antiferromagnet with a Neel temperature of 10 K and exhibits anomalous magnetic properties in the nano regime. Ion irradiation can cause amorphisation of zinc ferrite thin films; thus the role of crystallinity on magnetic properties can be examined. The influence of surface topography in these thin films can also be studied. Zinc ferrite thin films, of thickness 320 nm, prepared by RF sputtering were irradiated with 100 MeV Ag ions. Structural characterization showed amorphisation and subsequent reduction in particle size. The change in magnetic properties due to irradiation was correlated with structural and topographical effects of ion irradiation. A rough estimation of ion track radius is done from the magnetic studies.
AB - Swift heavy ion irradiation provides unique ways to modify physical and chemical properties of materials. In ferrites, the magnetic properties can change significantly as a result of swift heavy ion irradiation. Zinc ferrite is an antiferromagnet with a Neel temperature of 10 K and exhibits anomalous magnetic properties in the nano regime. Ion irradiation can cause amorphisation of zinc ferrite thin films; thus the role of crystallinity on magnetic properties can be examined. The influence of surface topography in these thin films can also be studied. Zinc ferrite thin films, of thickness 320 nm, prepared by RF sputtering were irradiated with 100 MeV Ag ions. Structural characterization showed amorphisation and subsequent reduction in particle size. The change in magnetic properties due to irradiation was correlated with structural and topographical effects of ion irradiation. A rough estimation of ion track radius is done from the magnetic studies.
KW - Spin glass
KW - Swift heavy ion
KW - Zinc ferrite
UR - http://www.scopus.com/inward/record.url?scp=85011093611&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85011093611&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2017.01.046
DO - 10.1016/j.nimb.2017.01.046
M3 - Article
AN - SCOPUS:85011093611
SN - 0168-583X
VL - 396
SP - 68
EP - 74
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -