120 MeV Au+9 swift heavy ion irradiation of pulsed laser deposited BaM/LSMO bilayers

Magnetic field control and swift heavy ion beam assisted tuning of resistive switching properties of BSFO/CFO/LNO heterostructures

“…These suggest the absence of impure secondary phases. The evidently clear weakening of peak intensities with increase in fluence corresponding to BSFO, CFO and LNO suggest the gradual amorphization of the sample [8,12,18]. Average crystallite size (D) taken from the XRD peaks were calculated using Scherrer's formula [19,20] and are given below confirming the nano structure of the thin film.…”

“…150 MeV Ag 11+ ions were used to irradiate BSFO/ CFO/LNO multilayered thin film at three different ion fluences of ∼1 × 10 +11 ions cm −2 , 1 × 10 +12 ions cm −2 and 5 × 10 +12 ions cm −2 represented as 1E11, 1E12 and 5E12 respectively taken for the current of 0.7 pnA (particle nanoampere). The effect of heavy ion with high energy on the interface was studied [18]. The samples were mounted on irradiation ladder in a high vacuum irradiation chamber.…”

“…The created defects are primarily due to the electron energy loss as compared to the nuclear energy loss in all three layers. As the standard thermal spike model reveals; the creation of latent tracks is a result of dominancy of electron energy loss [8,18]. This can be explained as follows: According to the thermal spike model, secondary electrons are produced on the ion track path due to the deposited energy.…”

Magnetotransport properties of Fe substituted Ca3CoMnO6

“…frequency independent as can be seen in figure 5. It is understood that at higher frequency regions, the charge carriers cannot switch fast enough with the variations in the applied field AC field [36,37], whereas in the lower frequency region, the electric dipole follows the frequency of the applied field and responds to it swiftly. The dielectric behavior on the basis of space charge polarization is largely mediated by Fe +2 , Fe +3 , Mn +3 and Mn +4 ions and corresponding electron hopping mechanisms such as Fe +2 <=> Fe +3 and Mn +3 <=> Mn +4 etc and charge balanced Mn +3 +Fe +3 <=> Fe +2 +Mn +4 pairs [38].…”