Explanipedia

Tuning Magnetic and Electronic Properties of Double Perovskite La$_2$CoIr$_{1-x}$Ti$_x$O$_6$ Open

Sromona Nandi, Virendra Kumar Yadav, S.P. Anjali Devi, C. S. Yadav, Bikash Kumar Das , et al. · 2025

The La$_2$CoIr$_{1-x}$Ti$_x$O$_6$ double perovskite series serves as an effective platform for investigating the evolution of magnetic and electronic properties as a function of chemical pressure (doping) or hydrostatic pressure due to the…

Magnetodielectric properties in two dimensional magnetic insulators Open

K. Dey, Hasina Khatun, Anudeepa Ghosh, Soumik Das, Bikash Kumar Das , et al. · 2025

Magnetodielectric (MD) materials are important for their ability to spin-charge conversion, magnetic field control of electric polarization and vice versa. Among these, two-dimensional (2D) van der Waals (vdW) magnetic materials are of par…

Dimensional crossover and emergence of novel phases in puckered PdSe$_2$ under pressure Open

Tanima Kundu, Soumik Das, Koushik Dey, Boby Joseph, Mainak Palit , et al. · 2025

We investigate the pressure-driven structural and electronic evolution of PdSe$_2$ using powder X-ray diffraction, Raman spectroscopy, and first-principles calculations. Beyond 2.3 GPa, suppression of the Jahn-Teller distortion induces i…

Magnon-Phonon Coupling in Layered Antiferromagnet Open

Somsubhra Ghosh, Mainak Palit, Sujan Maity, Subhadeep Datta · 2024

We present a fully analytical model of hybridization between magnon, and phonons observed experimentally in magneto-Raman scattering in van der Waals (vdW) antiferromagnets (AFM). Here, the representative material, FePS3, has been shown to…

Electron-Magnon Coupling Mediated Magnetotransport in Antiferromagnetic van der Waals Heterostructure Open

Sujan Maity, Soumik Das, Mainak Palit, K. Dey, Bikash Das , et al. · 2024

Electron-magnon coupling reveals key insights into the interfacial properties between non-magnetic metals and magnetic insulators, influencing charge transport and spin dynamics. Here, we present temperature-dependent Raman spectroscopy an…

Unraveling electronic structure of GeS through ARPES and its correlation with anisotropic optical and transport behavior Open

Rahul Paramanik, Tanima Kundu, Soumik Das, Alexei Barinov, Bikash Das , et al. · 2024

Two-dimensional (2D) van der Waals (vdW) materials with lower symmetry (triclinic, monoclinic or orthorhombic) exhibit intrinsic anisotropic in-plane structure desirable for future optoelectronic surface operating devices. Herein, we repor…

Manipulating Spin‐Lattice Coupling in Layered Magnetic Topological Insulator Heterostructure via Interface Engineering Open

Sujan Maity, Dibyendu Dey, Anudeepa Ghosh, Suvadip Masanta, Binoy Krishna De , et al. · 2024

Induced magnetic order in a topological insulator (TI) can be realized either by depositing magnetic adatoms on the surface of a TI or engineering the interface with epitaxial thin film or stacked assembly of 2D van der Waals (vdW) materia…

Dimension-dependent critical scaling analysis and emergent competing interaction scales in a two-dimensional van der Waals magnet Open

P. C. Mahato, Suprotim Saha, Bikash Das, Subhadeep Datta, Rajib Mondal , et al. · 2024

We investigate thickness-dependent transformation from a paramagnetic to ferromagnetic phase in Cr$_{2}$Ge$_{2}$Te$_{6}$ (CGT) in bulk and few-layer flake forms. 2D Ising-like critical transition in bulk CGT occurs at $T_{c}$ = 67 K with o…

Negative Capacitance for Stabilizing Logic State in Tunnel Field-Effect Transistor Open

Koushik Dey, Bikash Das, Pabitra Kumar Hazra, Tanima Kundu, Sanjib Naskar , et al. · 2024

The study investigates the influence of negative capacitance on the transfer characteristics of vdW FETs on the heterophase of CIPS ferroelectric. Notably, a less pronounced NC resulting from the spatial distribution of the ferroelectric a…

Raman signatures of lattice dynamics across inversion symmetry breaking phase transition in quasi-1D compound, (TaSe$_4$)$_3$I Open

Arnab Bera, Partha Sarathi Rana, Suman Kalyan Pradhan, Mainak Palit, Sk Kalimuddin , et al. · 2023

Structural phase transition can occur due to complex mechanisms other than simple dynamical instability, especially when the parent and daughter structure is of low dimension. This article reports such an inversion symmetry-breaking struct…

Emergence of a Non‐Van der Waals Magnetic Phase in a Van der Waals Ferromagnet Open

Bikash Das, Subrata Ghosh, Shamashis Sengupta, Pascale Auban‐Senzier, M. Monteverde , et al. · 2023

Manipulation of long‐range order in 2D van der Waals (vdW) magnetic materials (e.g., CrI 3 , CrSiTe 3 ,etc.), exfoliated in few‐atomic layer, can be achieved via application of electric field, mechanical‐constraint, interface engineering, …

Emergence of a Non-van der Waals Magnetic Phase in a van der Waals Ferromagnet Open

Bikash Das, Subrata Ghosh, Shamashis Sengupta, Pascale Auban‐Senzier, M. Monteverde , et al. · 2023

Manipulation of long-range order in two-dimensional (2D) van der Waals (vdW) magnetic materials (e.g., CrI$_3$, CrSiTe$_3$ etc.), exfoliated in few-atomic layer, can be achieved via application of electric field, mechanical-constraint, int…

Pressure induced insulator-to-metal transition in few-layer FePS$_3$ at 1.5 GPa Open

Bidyut Mallick, Mainak Palit, Rajkumar Jana, Soumik Das, Anudeepa Ghosh , et al. · 2023

In two-dimensional (2D) van der Waals (vdW) layered materials the application of pressure often induces a giant lattice collapse, which can subsequently drive an associated Mott transition. Here, we investigate room-temperature layer-depen…

Tunable Electron Transport in Defect-Engineered PdSe$_\mathrm{2}$ Open

Tanima Kundu, Barnik Pal, Bikash Das, Rahul Paramanik, Sujan Maity , et al. · 2023

Tuning the ambipolar behavior in charge carrier transport via defect-engineering is crucial for achieving high mobility transistors for nonlinear logic circuits. Here, we present the electric-field tunable electron and hole transport in a …

Manipulating Spin-Lattice Coupling in Layered Magnetic Topological Insulator Heterostructure $via$ Interface Engineering Open

Sujan Maity, Dibyendu Dey, Anudeepa Ghosh, Suvadip Masanta, Binoy Krishna De , et al. · 2022

Induced magnetic order in a topological insulator (TI) can be realized either by depositing magnetic adatoms on the surface of a TI or engineering the interface with epitaxial thin film or stacked assembly of two-dimensional (2D) van der W…

Anisotropic Magnetodielectric Coupling in Layered Antiferromagnetic FePS$_3$ Open

Anudeepa Ghosh, Magdalena Birowska, Pradeepta Kumar Ghose, Miłosz Rybak, Sujan Maity , et al. · 2022

We report anisotropic magnetodielectric (MD) coupling in layered van der Waals (vdW) antiferromagnetic (AFM) FePS$_3$ (Néel temperature $T_{\mathrm{N}}$ $\sim$ 120K) with perpendicular anisotropy. Above $T_N$, while dielectric response fun…

Magnon polarons in the van der Waals antiferromagnet Open

Diana Václavková, Mainak Palit, J. Wyzula, Somsubhra Ghosh, Alex Delhomme , et al. · 2021

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Magnon-polarons in van der Waals antiferromagnet FePS3 Open

Diana Václavková, Mainak Palit, J. Wyzula, Somsubhra Ghosh, Alex Delhomme , et al. · 2021

The hybridization of magnons (spin waves) with phonons, if sufficiently strong and comprising long wavelength excitations, may offer a new playground when manipulating the magnetically ordered systems with light. Applying a magnetic field …

CCDC 1872174: Experimental Crystal Structure Determination Open