|
International Scientific and Practical Conference
"Electronics and Information Technologies"
| Issue 10, Pages: B-66-B-69 |
| DOI: https://doi.org/10.30970/elit2018.B20 |
| Transport Properties of La0.7Sr0.3MnO3/MgB2 Random Nanocomposites |
| V. Tarenkov, V. Krivoruchko, O. Boliasova |
| We have investigated electrical transport properties of random binary networks composed of superconducting MgB2 micro-particles and half-metallic ferromagnet La0.7Sr0.3MnO3 nano-particles. Unusually large value of the threshold for a percolation transition to a superconducting state of the nanocomposite has been detected for MgB2. We explain the observed behavior by significant geometric disparity between particles of the constituents and unconventional (triplet) superconducting state induced in the nanocomposite due to the proximity effect. The effect of high-frequency irradiation on a superconducting transition of the nanocomposite was investigated as well. The influence of a high-frequency signal on the critical current magnitude and superconducting transition of a nanocomposite is revealed. A nonthermal effect of an external electromagnetic irradiation on the nanocomposite characteristics has been found. |
|
© Ivan Franko National University of Lviv, 2018
Developed and supported - Laboratory of high performance computing systems
|