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Ranjan Datta: Recent submissions

Now showing items 21-31 of 31

The origin of low thermal conductivity in Sn1-xSbxTe: phonon scattering via layered intergrowth nanostructures

Banik, Ananya; Vishal, Badri; Perumal, Suresh; Datta, Ranjan; Biswas, Kanishka (Royal Society of Chemistry, 2016)

Inorganic solids with low thermal conductivity are of great interest for thermoelectric applications. The formation of synthetic nanostructures by matrix encapsulation is one of the important strategies for thermal ...
High-Yield Synthesis of Sub-10 nm Pt Nanotetrahedra with Bare < 111 > Facets for Efficient Electrocatalytic Applications

Rana, Moumita; Chhetri, Manjeet; Loukya, B.; Patil, Pramod K.; Datta, Ranjan; Gautam, Ujjal K. (American Chemical Society, 2015)

Unlike other shapes, the design of tetrahedral Pt nanocrystals (Pt-NTd), which have the largest number of Pt(111) surface atoms and highest catalytic activities toward the electron transfer reactions, has widely been ...
Structural and optical property characterization of epitaxial ZnO:Te thin films grown by pulsed laser deposition

Sahu, R.; Dileep, K.; Negi, D. S.; Nagaraja, K. K.; Shetty, S.; Datta, Ranjan (Elsevier Science Bv, )

We have investigated the Te atom incorporation, solubility, structural features and the corresponding optical property of epitaxial ZnO:Te thin film grown on c-plane sapphire by pulsed laser deposition. Incorporation of ...
Ambipolar behavior of Te and its effect on the optical emission of ZnO: Te epitaxial thin film

Sahu, R.; Dileep, K.; Negi, D. S.; Nagaraja, K. K.; Datta, Ranjan (Wiley-V C H Verlag Gmbh, 2015)

We present control over the ambipolar nature of Te in ZnO and the corresponding optical band gap in epitaxial thin film grown by pulsed laser deposition. Experimentally, the decrease in band gap is found to be strongly ...
Effect of Bloch wave electron propagation and momentum-resolved signal detection on the quantitative and site-specific electron magnetic chiral dichroism of magnetic spinel oxide thin films

Loukya, B.; Negi, D. S.; Dileep, K.; Pachauri, N.; Gupta, A.; Datta, Ranjan (American Physical Society, )

Electron magnetic chiral dichroism (EMCD) in a transmission electron microscope is an element-specific magnetic characterization technique and is extremely powerful for understanding magnetism of materials at the nanoscale. ...
Metastable monoclinic and orthorhombic phases and electric field induced irreversible phase transformation at room temperature in the lead-free classical ferroelectric BaTiO3

Kalyani, Ajay Kumar; Khatua, Dipak Kumar; Loukya, B.; Datta, Ranjan; Fitch, Andy N.; Senyshyn, Anatoliy; Ranjan, Rajeev (American Physical Society, )

For decades it has been a well-known fact that among the few ferroelectric compounds in the perovskite family, namely, BaTiO3, KNbO3, PbTiO3, and Na1/2Bi1/2TiO3, the dielectric and piezoelectric properties of BaTiO3 are ...
High Thermoelectric Performance and Enhanced Mechanical Stability of p-type Ge1-xSbxTe

Perunnal, Suresh; Roychowdhury, Subhajit; Negi, Devendra S.; Datta, Ranjan; Biswas, Kanishka (American Chemical Society, 2015)

High thermoelectric figure of merit, zT, of similar to 1.85 at 725 K along with significant cydable temperature stability was achieved in Pb-free p-type Ge1-xSbxTe samples through simultaneous enhancement in Seebeck ...
Spatially resolved quantitative magnetic order measurement in spinel CuCr2S4 nanocrystals

Negi, D. S.; Loukya, B.; Ramasamy, K.; Gupta, A.; Datta, Ranjan (American Institute of Physics, 2015)

We have utilized spatially resolved high resolution electron energy loss spectroscopy to quantify the relative percentage of ferromagnetic order in the core and the surface regions of CuCr2S4 nanoparticles with nanocube ...
Study of structural and ferromagnetic resonance properties of spinel lithium ferrite (LiFe5O8) single crystals

Pachauri, Neha; Khodadadi, Behrouz; Althammer, Matthias; Singh, Amit V.; Loukya, B.; Datta, Ranjan; Iliev, Milko; Bezmaternykh, Leonard; Gudim, Irina; Mewes, Tim; Gupta, Arunava (American Institute of Physics, 2015)

The effect of B-site cation ordering on the room temperature structural and ferromagnetic resonance (FMR) properties of single crystal spinel lithium ferrite (LiFe5O8, LFO) have been investigated. A detailed microstructural ...
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 ...

Now showing items 21-31 of 31

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