12 citations · 38 across the 6 of their papers we have counts for
6 papers
Enhanced magnetic properties in ZnCoAlO caused by exchangecoupling to Co nanoparticles
Qi Feng, Wala Dizayee, Xiaoli Li +12
Wereport the results of a sequence of magnetisation and magneto-optical studies on laser ablated thin films of ZnCoAlO and ZnCoO that contain a small amount of metallic cobalt. The…
Negative activation energy and dielectric signatures of excitons and excitonic Mott transitions in quantum confined laser structures
Amit Bhunia, Kanika Bansal, Mohamed Henini +2
Mostly, optical spectroscopies are used to investigate the physics of excitons, whereas their electrical evidences are hardly explored. Here, we examined a forward bias activated d…
Dynamic frequency dependence of bias activated negative capacitance in semiconductor diodes under high forward bias
Kanika Bansal, Mohamed Henini, Marzook S. Alshammari +1
We observed qualitatively dissimilar frequency dependence of negative capacitive response under high charge injection in two sets of junction diodes which are functionally differen…
Magnetic and Optical properties of strained films of multiferroic GdMnO3
Mohammed S. Al Qahtani, Marzook Alshammari, H. J Blythe +5
The effects of strain on a film of mulitferroic GdMnO3 are investigated using both magnetometry and magneto-optic spectroscopy. Optical spectra, in the energy range 1.5eV - 3.5eV,…
On Using Magnetic and optical methods to determine the size and characteristics of nanoparticles embedded in oxide semiconductors
Gillian A. Gehring, Harry J. Blythe, Qi Feng +5
Films of oxides doped with transition metals are frequently believed to have magnetic inclusions. Magnetic methods to determine the amount of nanophases and their magnetic characte…
Magneto-optical properties of Co/ZnO multilayer films
David S Score, Marzook Alshammari, Qi Feng +6
Multilayer films of ZnO with Co were deposited on glass substrates then annealed in a vacuum. The magnetisation of the films increased with annealing but not the magnitude of the m…