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Browsing Physical & Applied Sciences by Subject "Physics"

Now showing items 1-20 of 393

A small angle neutron scattering study of an SDS micellar solution confined in sodium bentonite

Raut-Dessai, R.; Desa, J.A.E.; Ray, D.; Aswal, V.K. (Applied Clay Science. 135; 2017; 372-377.)

The effect on the structure of a Sodium Dodecyl Sulphate (SDS) micellar solution confined within the porous structure of a bentonite has been investigated using Small Angle Neutron Scattering. Normal bentonite and that ...
Absence of first order magnetic transition, a curious case of Mn3InC

Dias, E.T.; Das, A.; Hoser, A.; Emura, S.; Nigam, A.K.; Priolkar, K.R. (Journal of Applied Physics. 125; 2019; ArticleID_063904.)

The volume expanding magnetostructural transition in Mn3GaC and Mn3SnC has been identified to be due to distortion of Mn6Coctahedra. Despite a similar lattice volume as Mn3SnC and similar valence electron contribution to ...
AC conductivity, electrochemical and magnetic studies of CoWO4/PbWO4 nanocomposites

Jeyakanthan, M.; UmaSubramanian; Tangsali, R.B.; Ramesh, A. (Physica B: Condensed Matter. 586; 2020; ArticleID_412151.)

Structural, AC conductivity, electrochemical and magnetic properties of CoWO4 and CoWO4/PbWO4 nanocomposites are reported in the present manuscript. Structural characterization and HRTEM images of the nanocomposites confirm ...
Air mass motion, temperature, and humidity over the Arabian Sea and western Indian Ocean during the INDOEX intensive phase, as obtained from a set of superpressure drifting balloons

Ethe, C.; Basdevant, C.; Sadourny, R.; Appu, K.S.; Harenduprakash, L.; Sarode, P.R.; Viswanathan, G. (Journal of Geophysical Research-Atmospheres. 107(D19); 2002; Article ID: 8023)

During the Indian Ocean Experiment (INDOEX) Intensive Field Phase, 17 superpressure balloons drifting at lower tropospheric levels were launched from Goa to sample the motion and meteorological characteristics of polluted ...
An algorithm to determine the slope of the spectral absorption of colored dissolved organic matter (CDOM) and detritus

Suresh, T.; Dias, A.B.; Desa, J.A.E.; Sahay, A. (Journal of the Indian Society of Remote Sensing. 46(4); 2018; 625-631.)

A simple method to determine the slope of spectral variations of combined absorption of the colored dissolved organic matter and detritus (CDM) is presented. This method uses the slope of total absorption spectrum excluding ...
An enhanced thermoelectric property of 1-D silicon atomic wire: An ab-initio study

Joshi, H.; Rai, D.P.; Patra, P.K.; Bhamu, K.C.; Thapa, R.K. (Nanoscience and Nanoengineering. 4(4); 2016; 59-63.)

The band structure calculation was performed using the Full Potential Linearized Augmented Plane Wave Method (FP-LAPW) within a frame work of Density Functional Theory (DFT). We have observed a band gap in cubic bulk Silicon ...
Analysis of the Performance of a Pressure Transducer for Sea Level Measurements

Joseph, Antony K.
Anomalous hall-effect in cerium-based kondo systems

Prabhu, R.B.; Barbosa, A.F. (Physica Status Solidi B-Basic Research. 178(2); 1993; 431-440.)

A self-consistent perburbation theory to calculate magnetoresistivity, susceptibility, and the Hall constant for the crystal field split cerium based systems is employed. In this theory, excitonic and other correlations ...
Anomalous magnetic properties in Ni(50)Mn(35)In(15)

Bhobe, P.A.; Priolkar, K.R.; Nigam, A.K. (Journal of Physics D-Applied Physics. 41(23); 2008; Article ID: 235006)

We present here a comprehensive investigation of the magnetic ordering in Ni(50)Mn(35)In(15) composition. A concomitant first order martensitic transition and the magnetic ordering occurring in this off-stoichiometric ...
Antiferromagnetic exchange interactions in the Ni2Mn1.4In0.6 ferromagnetic Heusler alloy

Priolkar, K.R.; Bhobe, P.A.; Lobo, D.N.; D'Souza, S.W.; Barman, S.R.; Chakrabarti, A.; Emura, S. (Physical Review B. 87(14); 2013; Article ID: 144412.)

Magnetism in Ni-Mn-Z (Z=Ga, In, Sn, Sb) Heusler alloys has so far been predominantly attributed to Rudermann-Kittel-Kasuya-Yoshida type interactions between Mn atoms. We investigate magnetic interactions in one such alloy, ...
Antisite disorder and phase segregation in Mn sub(2) NiSn

Malik, S.V.; Dias, E.T.; Nigam, A.K.; Priolkar, K.R. (Journal of Physics D: Applied Physics. 55(16); 2022; ArticleID_165002.)

A systematic study of crystal structure, local structure, magnetic and transport properties in quenched and temper annealed Ni sub(2-x) Mn sub(1+x) Sn alloys indicate the formation of Mn sub(3) Sn type structural defects ...
Associating high oxide-ion conductivity and conduction mechanisms with local atomic environments in Na sub(0.5) Bi sub(0.5-x) Ti sub(1-y) Mg sub(y) O sub(3-Delta)

Santhoshkumar, B.; Priolkar, K.R.; Pollastri, S.; de Souza, D.O.; Carlomagno, I.; Bera, A.K.; Yusuf, S.M.; Pahari, B. (Journal of Physical Chemistry C. 125(36); 2021; 19621-19630.)

Oxide-ion conductors are of high interest in electrochemical devices such as solid-oxide fuel cells, oxygen sensors, and separation membranes. In this paper, high oxide-ion conductivity and associated ion conduction mechanism ...
ATHENA detector proposal - a totally hermetic electron nucleus apparatus proposed for IP6 at the Electron-Ion Collider

Adam, J.; Adamczyk, L.; Agrawal, N.; Aidala, C.; Akers, W.; Palni, P.; et al. (Journal of Instrumentation. 17(10); 2022; ArticleID_P10019.)

ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine tracking and momentum resolution, high performance ...
Au nanoparticles decorated titanium dioxide nanotube arrays with enhanced photocatalytic dye degradation under ultraviolet and sunlight irradiation

Steffi, A.M.; Hyam, R.S. (Results in Surfaces and Interfaces. 12; 2023; ArticleID_100140.)

The aim of this study is to show that the geometry of titanium dioxide (TiO sub(2)) nanotubes has an inevitable role in photocatalytic activity. The TiO sub(2) nanotubes were synthesized by anodization technique. Au ...
Au nanoparticles-coated TiO sub(2) SERS active substrate studies-based on plasmonic photonic interference coupling

Steffi, A.M.; Hyam, R.S. (Materials Science and Engineering: B. 298; 2023; ArticleID_116885.)

In this work, gold nanoparticles coated titanium dioxide surface-enhanced Raman scattering (SERS) substrates were fabricated and tested. Amorphous titanium dioxide nanotubes with different geometry were prepared by anodization ...
Biophysical insights into the binding capability of Cu(II) schiff base complex with BSA protein and cytotoxicity studies against SiHa

Maity, M.; Pramanik, U.; Hathwar, V.R.; Brandao, P.; Mukherjee, S.; Maity, S.; Maity, R.; Maity, T.; Samanta, B.C. (Heliyon. 8(11); 2022; ArticleID_e11345.)

Herein, we have explored the effects of chlorinated mononuclear Cu(II) complex upon binding with BSA protein (bovine serum albumin) and its in vitro anti-proliferative potentiality against SiHa cell. The complex was ...
Bose-Hubbard model in a strong effective magnetic field: Emergence of a chiral Mott insulator ground state

Dhar, A.; Maji, M.; Mishra, T.; Pai, R.V.; Mukerjee, S.; Paramekanti, A. (Physical Review A. 85(4); 2012; Article ID: 041602(R).)

Motivated by experiments on Josephson junction arrays, and cold atoms in an optical lattice in a synthetic magnetic field, we study the "fully frustrated" Bose-Hubbard model with half a magnetic flux quantum per plaquette. ...
Bose-Hubbard models in confining potentials: Inhomogeneous mean-field theory

Pai, R.V.; Kurdestany, J.M.; Sheshadri, K.; Pandit, Rahul (Physical Review B. 85(21); 2012; Article ID: 214524.)

An extensive study of Mott insulator (MI) and superfluid (SF) shells in Bose-Hubbard (BH) models for bosons in optical lattices with harmonic traps is presented. For this we apply the inhomogeneous mean-field theory ...
Carbon-supported Pt-Fe alloy as a methanol-resistant oxygen-reduction catalyst for direct methanol fuel cells

Shukla, A.K.; Raman, R.K.; Choudhury, N.A.; Priolkar, K.R.; Sarode, P.R.; Emura, S.; Kumashiro, R. (Journal of Electroanalytical Chemistry. 563(2); 2004; 181-190.)

Crossover of methanol from the anode to the cathode through the polymer-electrolyte membrane in solid-polymer-electrolyte direct methanol fuel cells constitutes a significant loss in their performance. Pt/C and Pt-Fe/C ...
Carbonyl-iron electrodes for rechargeable-iron batteries

SundarRajan, A.; Ravikumar, M.; Priolkar, K.R.; Sampath, S.; Shukla, A.K. (Electrochemical Energy Technology. 1(1); 2015; 2-9.)

Nickel-iron and iron-air batteries are attractive for large-scale-electrical-energy storage because iron is abundant, low-cost and non-toxic. However, these batteries suffer from poor charge acceptance due to hydrogen ...

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