Sebastian C. Peter: Recent submissions

Now showing items 1-20 of 31

Neutron diffraction studies on structural and magnetic properties of RE2NiGe3 (RE=La, Ce)

Kalsi, Deepti; Rayaprol, S.; Siruguri, V.; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2014)

We report the crystallographic properties of RE(2)NiG(e)3 (RE=La, Ce) synthesized by arc melting. Rietveld refinement on the powder neutron diffraction (ND) data suggest both compounds are isostructural and crystallize in ...
TbRhSn and DyRhSn - Detailed magnetic and Sn-119 Mossbauer spectroscopic studies

Gurgul, Jacek; Latka, Kazimierz; Pacyna, Andrzej W.; Peter, Sebastian C.; Poettgen, Rainer (Elsevier Sci Ltd, 2014)

The results of magnetic studies and Mossbauer spectroscopic investigations are reported for the stannides TbRhSn and DyRhSn crystallizing in the hexagonal ZrNiAl-type structure. The polycrystalline samples of these ternary ...
Flux Growth of Yb6.6Ir6Sn16 Having Mixed-Valent Ytterbium

Peter, Sebastian C.; Subbarao, Udumula; Rayaprol, Sudhindra; Martin, Joshua B.; Balasubramanian, Mahalingarn; Malliakas, Christos D.; Kanatzidis, Mercouri G. (American Chemical Society, 2014)

The compound Yb6.6Ir6Sn16 was obtained as single crystals in high yield from the reaction of Yb with Ir and Sn run in excess indium. Single-crystal X-ray diffraction analysis shows that Yb6.6Ir6Sn16 crystallizes in the ...
Structural and magnetic properties in the polymorphs of CeRh0.5Ge1.5

Kalsi, Deepti; Subbarao, Udumula; Rayaprol, Sudhindra; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2014)

We investigate the structural and magnetic properties in the polymorphs of a new compound CeRh0.5Ge1.5. Depending upon the starting materials, and the slightly different synthesis method, we find that CeRh0.5Ge1.5 compound ...
Effect of ordered and disordered phases of unsupported Ag3In nanoparticles on the catalytic reduction of p-nitrophenol

Sarkar, Sumanta; Balisetty, Lahari; Shanbogh, Pradeep P.; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2014)

A detailed study has been done on the combined effect of the reaction time and the effect of surfactants namely, polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide in the formation of ordered (Ag3In) and disordered ...
Ligand mediated valence fluctuation of copper in new hybrid materials constructed from decavanadate and a Cu(1,10-phenanthroline) complex

Iyer, Abishek K.; Roy, Soumyabrata; Haridasan, Remesh; Sarkar, Sumanta; Peter, Sebastian C. (Royal Society of Chemistry, 2014)

Two new organic hybrid materials [H4V10O28][CuCl(Hn(2)O)2(1,10-phenanthroline)](2)center dot 4H(2)O (V10O28-CuCl-phen) and [H4V10O28][Cu(H2O)3(1,10-phenanthroline)](2)center dot 4H(2)O (V10O28-CuO-phen) were synthesized ...
Effect of Li and Mg substitution on the crystal structure and magnetism of the REGa2 (RE = Ce and Eu) and EuGa4 compounds

Iyer, Abishek K.; Balisetty, Lahari; Sarkar, Sumanta; Peter, Sebastian C. (Elsevier Science Sa, 2014)

The compounds CeGa2, Ce0.82Mg0.50Ga1.68, Eu(Mg/Li)(x)Ga2-x (0 <= x <= 0.4) and Eu(Mg/Li)(x)Ga4-x(0 <= x <= 0.73) were synthesized and characterized by X-ray diffraction. CeGa2 and Ce0.82Mg0.50Ga1.68 crystallize in the AlB2 ...
Crystal growth, structure and magnetic properties of Sm3Ni5Al19: A compound in the Sm2n+mNi4n+mAl15n+4m homologous series

Subbarao, Udumula; Ghosh, Aloke Kumar; Sarkar, Sumanta; Peter, Sebastian C. (Indian Academy of Sciences, 2014)

Sm3Ni5Al19 was obtained as large rod shaped single crystals from reactive aluminium flux. Single crystal X-ray diffraction suggests that Sm3Ni5Al19 crystallizes in the Gd3Ni5Al19 structure type, orthorhombic space group ...
Crystal structure of Yb2CuGe6 and Yb3Cu4Ge4 and the valency of ytterbium

Peter, Sebastian C.; Subbarao, Udumula; Sarkar, Sumanta; Vaitheeswaran, G.; Svane, Axel; Kanatzidis, Mercouri G. (Elsevier Science Sa, 2014)

The Yb2CuGe6 and Yb3Cu4Ge4 compounds were synthesized from reaction mixtures using indium as flux. Both powder and single crystal X-ray diffraction data were used to refine the crystal structures. Yb2CuGe6 crystallizes in ...
Two-Dimensional Bicapped Supramolecular Hybrid Semiconductor Material Constructed from the Insulators alpha-Keggin Polyoxomolybdate and 4,4 '-Bipyridine

Iyer, Abishek K.; Peter, Sebastian C. (American Chemical Society, 2014)

A new organic inorganic hybrid material [SiMo14O44](H4,4'-bpy)(2)center dot xH(2)O (4,4'-bpy = 4,4'-bipyridine) was synthesized using a hydrothermal method. The compound was characterized using single crystal X-ray diffraction ...
The crystal structure and magnetic properties of a Zintl phase EuIrIn4: the first member of the Eu-Ir-In in family

Sarkar, Sumanta; Gutmann, Matthias J.; Peter, Sebastian C. (Royal Society of Chemistry, 2014)

The indium-rich intermetallic compound EuIrIn4 was synthesized using indium as the active metal flux. The crystal structure of EuIrIn4 was investigated by X-ray powder and single crystal diffraction. EuIrIn4 crystallizes ...
Layer specific optical band gap measurement at nanoscale in MoS2 and ReS2 van der Waals compounds by high resolution electron energy loss spectroscopy

Dileep, K.; Sahu, R.; Sarkar, Sumanta; Peter, Sebastian C.; Datta, Ranjan (American Institute Physics, 2016)

Layer specific direct measurement of optical band gaps of two important van der Waals compounds, MoS2 and ReS2, is performed at nanoscale by high resolution electron energy loss spectroscopy. For monolayer MoS2, the twin ...
Pressure-induced electronic topological transition in Sb2S3

Sorb, Y. A.; Rajaji, V.; Malavi, P. S.; Subbarao, U.; Halappa, P.; Peter, Sebastian C.; Karmakar, S.; Narayana, Chandrabhas (IoP Publishing Ltd, 2016)

We report the high-pressure vibrational properties and a pressure-induced electronic topological transition in the wide bandgap semiconductor Sb2S3 (E-g = 1.7-1.8 eV) using Raman spectroscopy, resistivity and x-ray diffraction ...
Size and morphology controlled NiSe nanoparticles as efficient catalyst for the reduction reactions

Subbarao, Udumula; Marakatti, Vijaykumar S.; Amshumali, Mungalimane K.; Loukya, B.; Singh, Dheeraj Kumar; Datta, Ranjan; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2016)

Facile and efficient ball milling and polyol methods were employed for the synthesis of nickel selenide (NiSe) nanoparticle. The particle size of the NiSe nanoparticle has been controlled mechanically by varying the ball ...
Nickel-antimony nanoparticles confined in SBA-15 as highly efficient catalysts for the hydrogenation of nitroarenes

Marakatti, Vijaykumar S.; Peter, Sebastian C. (Royal Society of Chemistry, 2016)

NiSb nanoparticles confined in SBA-15 are found to be highly efficient catalysts for nitroarene reduction reactions. The NiSb/SBA-15 catalysts with different chemical compositions were prepared using an adsorption-reduction ...
Electrochemical Dealloying of PdCu3 Nanoparticles to Achieve Pt-like Activity for the Hydrogen Evolution Reaction

Jana, Rajkumar; Bhim, Anupam; Bothra, Pallavi; Pati, Swapan Kumar; Peter, Sebastian C. (Wiley-V C H Verlag Gmbh, 2016)

Manipulating the d-band center of the metal surface and hence optimizing the free energy of hydrogen adsorption (G(H)) close to the optimal adsorption energy (G(H)=0) for hydrogen evolution reaction (HER), is an efficient ...
Heterostructure composites of rGO/GeO2/PANI with enhanced performance for Li ion battery anode material

Sarkar, Sumanta; Borah, Rohan; Santhosha, A. L.; Dhanya, R.; Narayana, Chandrabhas; Bhattacharyya, Aninda J.; Peter, Sebastian C. (Elsevier Science Bv, 2016)

A novel solvothermal method has been used for the synthesis of porous ellipsoidal GeO2 particles with oleic acid and oleylamine as solvent and co-surfactant, respectively and its performance has been studied as an anode ...
Crystal Structure and Band Gap Engineering in Polyoxometalate-Based Inorganic-Organic Hybrids

Roy, Soumyabrata; Sarkar, Sumanta; Pan, Jaysree; Waghmare, Umesh V.; Dhanya, R.; Narayana, Chandrabhas; Peter, Sebastian C. (American Chemical Society, 2016)

We have demonstrated engineering of the electronic band gap of the hybrid materials based on POMs (polyoxometalates), by controlling its structural complexity through variation in the conditions of synthesis. The pH- and ...
A review on the synthesis, crystal growth, structure and physical properties of rare earth based quaternary intermetallic compounds

Mumbaraddi, Dundappa; Sarkar, Sumanta; Peter, Sebastian C. (Academic Press Inc Elsevier Science, 2016)

This review highlights the synthesis and crystal growth of quaternary intermetallic compounds based on rare earth metals. In the first part of this review, we highlight briefly about intermetallics and their versatile ...
Swinging Symmetry, Multiple Structural Phase Transitions, and Versatile Physical Properties in RECuGa3 (RE = La-Nd, Sm-Gd)

Subbarao, Udumula; Rayaprol, Sudhindra; Dally, Rebecca; Graf, Michael J.; Peter, Sebastian C. (American Chemical Society, 2016)

The compounds RECuGa3 (RE = La-Nd, Sm-Gd) were synthesized by various techniques. Preliminary X-ray diffraction (XRD) analyses at room temperature suggested that the compounds crystallize in the tetragonal system with ...

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