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Article
Raman scattering studies of the lattice dynamics in layered MoS2
We report non-resonant and resonant Raman scattering studies of layered MoS2. Owing to its reduced dimensionality, few layered MoS2 is more sensitive to the difference between inter- and intra-layer coupling, whi...
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Article
Local current–voltage behaviors of preferentially and randomly textured Cu(In,Ga)Se2 thin films investigated by conductive atomic force microscopy
Electrical transport properties on polycrystalline Cu(In,Ga)Se2 (CIGS) (Ga/(In+Ga) ≈35%) thin films were examined by conductive atomic force microscopy. The CIGS thin films with a (112) preferential or random tex...
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Article
Neutron-diffraction studies of YMnO3
We have made thermal expansion and neutron-diffraction studies of YMnO3, and found that our bulk measurements showed anomalous behavior at TN=80 K. The analysis of the neutron-diffraction data shows that the magn...
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Article
Magnetic structure studies of ErMnO3
ErMnO3 forms in a hexagonal structure with P63cm space group. Our neutron-diffraction studies from room temperature to 10 K show that ErMnO3 undergoes an antiferromagnetic transition at around 80 K, consistent wi...
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Article
Structural and ferroelectric properties of Bi4Ti3O12 thin films on IrO2 prepared by rf magnetron sputtering
Bismuth titanate, Bi4Ti3O12, thin films were grown on IrO2/SiO2/Si substrates by radio-frequency magnetron sputtering. Crystallinity and microstructure of the films were characterized over a wide range of oxygen ...