32 citations · 199 across the 21 of their papers we have counts for
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Strain Induced Relaxor-type Ferroelectricity Near Room Temperature in Delafossite CuCrO2
Preeti Pokhriyal, Ashok Bhakar, Parasmani Rajput +5
Polycrystalline samples of CuCrO2 were synthesized by solid state reaction method. Temperature dependent dielectric measurements, synchrotron x-ray diffraction (SXRD), pyroelectric…
Magneto-dielectric coupling and non-ergodic electrical behaviour in hexagonal Sr0.6Ba0.4MnO3 via local strain driven magnetic ordering
Ritu Rawat, R. J. Choudhary, A. M. Awasthi +6
The crystal structure of hexagonal-Sr0.6Ba0.4MnO3 allows various competing superexchange interactions, leading to intriguing magnetic properties. Local structural changes modify ov…
Interplay of Spin, Lattice, and Charge Degrees of Freedom in Ca3Mn2O7
Pooja Sahlot, A. K. Sinha, A. M. Awasthi
From low-temperature Synchrotron X-ray diffraction, a precise thermal characterization of octahedral distortions in single phase Ruddlesden-Popper Ca3Mn2O7 is performed. Highly sen…
Spin-lattice coupling mediated giant magnetodielectricity across the spin reorientation in Ca2FeCoO5
Gaurav Sharma, Shekhar Tyagi, V. R. Reddy +4
The structural, phonon, magnetic, dielectric, and magneto dielectric responses of the pure bulk Brownmillerite compound Ca2FeCoO5 are reported. This compound showed giant magneto d…
Hexagonal Sr0.6Ba0.4MnO3: Spin and Dipole Coupling via Local Structure
Ritu Rawat, R. J. Choudhary, A. M. Awasthi +5
Hexagonal Sr0.6Ba0.4MnO3 (SBMO) follows P63/mmc symmetry where MnO6 octahedra are both face-shared (Mn2O9 bi-octahedra) and corner-shared via oxygen anion. It undergoes ferroelectr…
Multiferroicity and magnetoelastic coupling in alpha-Mn2O3: A binary perovskite
Mohit Chandra, Satish Yadav, R. J. Choudhary +4
Multiferroics where at least two primary ferroic orders are present and coupled in a single system constitute an important class of materials. They attracted special consideration…
Investigation of La and Al substitution on the spontaneous polarization and lattice dynamics of the Pb(1-x)LaxTi(1-x)AlxO3 ceramics
Arun Kumar Yadav, Anita Verma, Sunil Kumar +6
The phase purity and crystal structure of PLTA samples (synthesized via sol-gel process) were confirmed using synchrotron x-ray powder diffraction (wavelength, lmbda= 0.44573 A. Ri…
Depth resolved chemical speciation of a superlattice structure
Gangadhar Das, A. G. Karydas, Haranath Ghosh +4
We report results of simultaneous x-ray reflectivity and grazing incidence x-ray fluorescence measurements in combination with x-ray standing wave assisted depth resolved near edge…
Giant Rashba effect at the topological surface of PrGe revealing antiferromagnetic spintronics
Soma Banik, Pranab Kumar Das, Azzedine Bendounan +9
Rashba spin-orbit splitting in the magnetic materials opens up a new perspective in the field of spintronics. Here, we report a giant Rashba-type spin-orbit effect on PrGe [010] su…
Low temperature Synchrotron X-ray diffraction studies on spin lattice coupling in Co3TeO6 and Co2.5Mn0.5TeO6
Harishchandra Singh, A. K. Sinha, M. N. Singh +2
In the quest of understanding significant variations in the physical, chemical and electronic properties of the novel functional materials, low temperature Synchrotron X-ray Diffra…
Insights of Dielectric relaxations in Nd and Mn co-substituted BiFeO3
Chandrakanta Panda, Pawan Kumar, A. K. Sinha +2
The composition-driven structural transition from the R3c to Pbnm symmetry was observed. Highest dielectric constant was observed for Bi0.95Nd0.05Fe0.95Mn0.05O3. Conductivity can b…
Two step solid state synthesis and Synchrotron X-ray characterizations of ceramic Co3TeO6; an improper multiferroic
Harishchandra Singh, A. K. Sinha, S. M. Gupta +2
A two step solid state reaction route has been presented to synthesize monophasic cobalt tellurate (Co3TeO6, CTO) using Co3O4 and TeO2 as starting reagents. During synthesis, initi…
Identification of annealing temperature for high--based gate oxides using differential scanning calorimetry
Debaleen Biswas, Anil Kumar Sinha, Supratic Chakraborty
This article identifies the process of crystallization of thin high- dielectric films and an optimal range of annealing temperature in the field of high- dielectric-based met…
Structural insight into ; () solid solutions using Synchrotron X-ray diffraction and XANES
Harishchandra Singh, A. K. Sinha, Haranath Ghosh +2
Structural investigation on ; () solid solutions as a function of Mn concentration using Synchrotron X-ray diffraction (SXRD) and XANES measuremen…
Coexistence of Co3+ and Co2+ in ceramic Co3TeO6; XANES, Magnetization and first principle study
Harishchandra Singh, Haranath Ghosh, T. V. Chandrasekhar Rao +1
Evidence of coexistence of Co3+ with Co2+ in ceramic Co3TeO6 through XANES, DC magnetization and first principal studies is provided. XANES along with linear combination fit provid…
Spontaneous electric polarization and Magneto-dielectric coupling in ceramic multiferroic Co3TeO6
Harishchandra Singh, Haranath Ghosh, A. K. Sinha +4
We report observation of magneto-electric and magneto-dielectric couplings in ceramic Co3TeO6. Temperature dependent DC magnetization and dielectric constant measurements together…
Investigation of charge states and multiferroicity in Fe-doped h-YMnO3
Sonu Namdeo, A. K. Sinha, M. N. Singh +1
Polycrystalline YMn1-xFexO3 (YMFO_x) (0 <= x <= 0.1) compounds have been prepared in single phase and characterized by synchrotron X-ray diffraction, X-ray absorption near edge spe…