Faculty Publications (ICMS): Recent submissions

Now showing items 61-71 of 71

Native defect induced charge and ferromagnetic spin ordering and coexisting electronic phases in CoO epitaxial thin film

Negi, D. S.; Loukya, B.; Datta, Ranjan (American Institute of Physics, )

We report on the observation of Co vacancy (VCo) induced charge ordering and ferromagnetism in CoO epitaxial thin film. The ordering is associated with the coexistence of commensurate, incommensurate, and discommensurate ...
Mechanochemical Synthesis of Free-Standing Platinum Nanosheets and Their Electrocatalytic Properties

Chhetri, Manjeet; Rana, Moumita; Loukya, B.; Patil, Pramod K.; Datta, Ranjan; Gautam, Ujjal K. (Wiley-V C H Verlag Gmbh, 2015)

Robust, 26 nm thick free-standing platinum nanosheets, an extremely rare morphology for metal nanostructures, are obtained by employing fluid induced shearing force of the order of 1.8 N and differential shear-stress of ...
Shape of Dynamical Heterogeneities and Fractional Stokes-Einstein and Stokes-Einstein-Debye Relations in Quasi-Two-Dimensional Suspensions of Colloidal Ellipsoids

Mishra, Chandan K.; Ganapathy, Rajesh (American Physical Society, 2015)

We examine the influence of the shape of dynamical heterogeneities on the Stokes-Einstein (SE) and Stokes-Einstein-Debye (SED) relations in quasi-two-dimensional suspensions of colloidal ellipsoids. For ellipsoids with ...
Direct measurements of growing amorphous order and non-monotonic dynamic correlations in a colloidal glass-former

Nagamanasa, K. Hima; Gokhale, Shreyas; Sood, A. K.; Ganapathy, Rajesh (Nature Publishing Group, 2015)

The transformation of flowing liquids into rigid glasses is thought to involve increasingly cooperative relaxation dynamics as the temperature approaches that of the glass transition. However, the precise nature of this ...
Role of quantum confinement in giving rise to high electron mobility in GaN nanowall networks

Bhasker, H. P.; Thakur, Varun; Shivaprasad, S. M.; Dhar, S. (Pergamon-Elsevier Science Ltd, 2015)

Origin of unprecedentedly high electron mobility observed in the c-axis oriented GaN nanowall networks is investigated by studying the depth distribution of structural, electrical and optical properties of several such ...
Surface Modification Induced Photoluminescence Enhancement of GaN Nanowall Network Grown on c-Sapphire

Thakur, Varun; Nayak, Sanjay Kumar; Nagaraja, Kodihalli Keeriti; Shivaprasad, S. M. (The Korean Institute of Metals and Materials, 2015)

Surface nitridation of the c-sapphire substrate is used to improve the optical and structural quality of a GaN nanowall network film grown by plasma assisted molecular beam epitaxy. The nitridation results in the formation ...
Enhanced Hydrogenation Properties of Size Selected Pd-C Core-Shell Nanoparticles; Effect of Carbon Shell Thickness

Singh, Vinod; Mehta, Bodh R.; Sengar, Saurabh K.; Kulriya, Pawan K.; Khan, Saif A.; Shivaprasad, Sonnada M. (American Chemical Society, 2015)

Effect of nanoparticle size and alloying has been well studied in Pd and Pd alloy nanoparticles and explained on the basis of modifications in the crystal structure and Pd 4d binding energy position. In the present study, ...
Pre-nitridation induced In incorporation in InxGa1-xN nanorods on Si(111) grown by molecular beam epitaxy

De, Arpan; Tangi, Malleswararao; Shivaprasad, S. M. (American Institute of Physics, 2015)

We address the issue of obtaining high quality green emitting InGaN nanorods without any phase separation. Role of pre-nitridation of the Si(111) substrate and growth, temperature on the morphology, structural and optical ...
A WO3-poly(butyl viologen) layer-by-layer film/ruthenium purple film based electrochromic device switching by 1 volt application

Sydam, Rambabu; Deepa, Melepurath; Shivaprasad, S. M.; Srivastava, A. K. (Elsevier Science Bv, 2015)

A layer-by-layer (LbL) assembly of poly(butyl viologen) (PBV) and poly(peroxotungstate) was used for preparing a cathodically coloring dual electrochrome WO3-PBV film. A new formulation containing ferrocenecarboxaldehyde ...
Electronic structure of GaN nanowall network analysed by XPS

Thakur, Varun; Shivaprasad, S. M. (Elsevier Science Bv, 2015)

This work examines the changes in bonding of GaN nanowall network samples with varying morphology grown by rf-plasma assisted molecular beam epitaxy system. X-ray photoelectron spectroscopy is employed to study the valence ...
Quantum coherence of electrons in random networks of c-axis oriented wedge-shaped GaN nanowalls grown by molecular beam epitaxy

Bhasker, H. P.; Thakur, Varun; Shivaprasad, S. M.; Dhar, S. (IOP Publishing Ltd, 2015)

The depth distribution of the transport properties as well as the temperature dependence of the low field magneto-conductance for c-axis oriented GaN nanowall network samples grown with different average wall-widths (t(av)) ...

Now showing items 61-71 of 71

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