2015
DOI: 10.1007/s10853-015-9321-5
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Heavy ion induced modifications on morphological, magnetic and magneto-transport behaviour of exchange-biased Fe/NiO and NiO/Fe bilayers with Si substrate for spintronic applications

Abstract: Exchange-coupled interfacial structures of Fe/ NiO and NiO/Fe with pSi substrate have been studied and also the effect of swift heavy ion irradiation on the morphological, structural, transport and magnetic behaviour is reported. The interfacial structures have been characterised from X-ray diffraction (XRD), magnetic force microscopy/ atomic force microscopy, X-ray photoelectron spectroscopy and magnetisation characteristics. XRD and X-ray photoelectron spectroscopy studies have shown the formation of various… Show more

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Cited by 5 publications
(2 citation statements)
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References 42 publications
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“…We then estimated E using TRIM, 27) which was also used in previous works on nanometer-thickness magnetic films. 9,44,45) Using TRIM, we modeled the layer structure of the p-MTJ including the 100-nm-thick Au top electrode and calculated the depth profile of the LET of the impinging ions. A simple integral analysis gives E for the target CoFeB layer, which is 17 keV for 400 MeV Fe irradiation, for example.…”
Section: Analytical Modelmentioning
confidence: 99%
“…We then estimated E using TRIM, 27) which was also used in previous works on nanometer-thickness magnetic films. 9,44,45) Using TRIM, we modeled the layer structure of the p-MTJ including the 100-nm-thick Au top electrode and calculated the depth profile of the LET of the impinging ions. A simple integral analysis gives E for the target CoFeB layer, which is 17 keV for 400 MeV Fe irradiation, for example.…”
Section: Analytical Modelmentioning
confidence: 99%
“…The ion beam implantation technique has been widely used for the last two decades to tune material properties by generating defects in a very controlled and reproducible manner. [1][2][3][4][5] In order to alter the physical properties, mainly the magnetic and optical properties of nanostructures by nonmagnetic ion implantation in metal oxides like ZnO, TiO 2 , SnO 2 , MgO, etc., various research groups have extensively investigated varying the ion beam parameters such as current, energy, uence and ion species. [6][7][8][9][10] ZnO is selected due to its high exciton binding energy (60 meV), better resistance to radiation damage, high optical gain (320 cm À1 ) and wide band gap of $3.37 eV at room temperature.…”
Section: Introductionmentioning
confidence: 99%