Publications (20)
Photoinduced demagnetization and insulator-to-metal transition in ferromagnetic insulating BaFeO thin films
T. Tsuyama, S. Chakraverty, N. Pontius +4
We studied the electronic and magnetic dynamics of ferromagnetic insulating BaFeO3 thin films by using pump-probe time-resolved resonant x-ray reflectivity at the Fe 2p edge. By ch…
Observation of planar Hall effect in Type-II Dirac semimetal PtTe
Amit Vashist, R. K. Singh, Neha Wadehra +2
We report experimental observation of the Planar Hall effect (PHE) in a type-II Dirac semimetal PtTe. This unusual Hall effect is not expected in nonmagnetc materials such as P…
Ferrimagnetism and spontaneous ordering of transition-metals in La2CrFeO6 double-perovskite films
S. Chakraverty, A. Ohtomo, D. Okuyama +8
We report on atomic ordering of B-site transition-metals and magnetic properties of epitaxial La2CrFeO6 double-perovskite films grown by pulsed-laser deposition under various condi…
Observation of Shubnikov-de Haas Oscillations, Non-trivial Berry Phase, Planar Hall and Anisotropic Magnetoresistance at the conducting interface of EuO-KTaO
Nand Kumar, Neha Wadehra, Ruchi Tomar +3
The momentum dependent splitting of spin-bands in an electronic system is known as the "Rashba effect". Systems with the "Rashba effect" possess a Dirac point in momentum space. An…
Artificial Neural Network Approach for Solving Fractional order initial value problems
Susmita Mall, S. Chakraverty
In this paper, an Artificial Neural Network (ANN) technique is developed to find solution of celebrated Fractional order Differential Equations (FDE). Compared to integer order dif…
X-ray spectroscopic study of BaFeO thin films; an Fe ferromagnetic insulator
T. Tsuyama, T. Matsuda, S. Chakraverty +7
We investigated the electronic and magnetic properties of fully oxidized BaFeO3 thin films, which show ferromagnetic-insulating properties with cubic crystal structure, by hard x-r…
The effect of a weak ferromagnetic matrix on a system of nanomagnetic particles
S. Chakraverty, A. Frydman, V. G. Pol +2
The study of system of magnetic nano-particle has received increasing attention recently both because of the novel physical concepts involved and also because of their vast potenti…
Planar Hall Effect and Anisotropic Magnetoresistance in a polar-polar interface of LaVO-KTaO with strong spin-orbit coupling
Neha Wadehra, Ruchi Tomar, R. K Gopal +3
Among the perovskite oxide family, KTaO (KTO) has recently attracted considerable interest as a possible system for the realization of the Rashba effect. In this work, we impro…
Physics-Informed Functional Link Constrained Framework with Domain Mapping for Solving Bending Analysis of an Exponentially Loaded Perforated Beam
Iswari Sahu, Ramanath Garai, S. Chakraverty
This article presents a novel and comprehensive approach for analyzing bending behavior of the tapered perforated beam under an exponential load. The governing differential equatio…
Response Prediction of Structural System Subject to Earthquake Motions using Artificial Neural Network
S. Chakraverty, T. Marwala, Pallavi Gupta +1
This paper uses Artificial Neural Network (ANN) models to compute response of structural system subject to Indian earthquakes at Chamoli and Uttarkashi ground motion data. The syst…
Multigap superconductivity with non-trivial topology in a Dirac semimetal PdTe
Amit Vashist, Bibek Ranjan Satapathy, Harsha Silotia +2
Recently, PdTe has been identified as a Dirac semimetal with potential for unconventional superconductivity based on ARPES measurements. This study presents electrical transport an…
Engineered spin-valve type magnetoresistance in FeO-CoFeO core-shell nanoparticles
P. Anil Kumar, Sugata Ray, S. Chakraverty +1
Naturally occurring spin-valve-type magnetoresistance (SVMR), recently observed in Sr2FeMoO6 samples, suggests the possibility of decoupling the maximal resistance from the coerciv…
Fuzzy and interval finite element method for heat conduction problem
Sarangam Majumdar, Sukanta Nayak, S. Chakraverty
Traditional finite element method is a well-established method to solve various problems of science and engineering. Different authors have used various methods to solve governing…
Bulk Rashba spin splitting and Dirac surface state in -type (BiSbSe single crystal
P. K. Ghose, S. Bandyopadhyay, T. K. Dalui +7
We report bulk Rashba spin splitting (RSS) and associated Dirac surface state in (BiSbSe, exhibiting dominant -type conductivity. We argue from the synchr…
"Stochastic Modeling of Coercivity " - A Measure of Non-equilibrium State
S. Chakraverty, M. Bandyopadhyay
A typical coercivity versus particle size curve for magnetic nanoparticles has been explained by using the Gilbert equation followed by the corresponding Fokker Plank equation. Kra…
A de Hass-van Alphen study of the Type-II Dirac semimetal candidates Te ( Pt, Pd)
Amit, R. K. Singh, Neha Wadhera +2
We report on a magneto-transport and quantum oscillations study on high quality single crystals of the transition metal di-tellurides PtTe and PdTe. The de Haas-van Alphen…
Signatures of Chiral Anomaly in the Magnetoresistance of a Quasi-3-Dimensional Electron Gas at the Interface of LaVO and KTaO
Harsha Silotia, Anamika Kumari, Anshu Gupta +4
In a Dirac semimetal charges flow between two Weyl nodes when electric and magnetic fields (B||E) are parallel to each other manifesting interesting physical properties such as neg…
Light-enhanced gating effect at the interface of oxide heterostructure
Neha Wadehra, Ruchi Tomar, Yuichi Yokoyama +5
In semiconducting materials, electrostatic gating and light illumination are widely used stimuli to tune the electronic properties of the system. Here, we show a significant enhanc…
Numerical solution of moving plate problem with uncertain parameters
S. Nayak, S. Chakraverty
This paper deals with uncertain parabolic fluid flow problem where the uncertainty occurs due to the initial conditions and parameters involved in the system. Uncertain values are…
Comparative Study of Bending Analysis using Physics-Informed Neural Networks and Numerical Dynamic Deflection in Perforated nanobeam
Ramanath Garai, Iswari Sahu, S. Chakraverty
In this chapter, we investigate the bending behavior of a perforated nanobeam subjected to sinusoidal loading using an efficient and computationally robust Physics-Informed Functio…