Samiran Choudhury
YOU?
Author Swipe
View article: Tunable strong magnon-magnon coupling in two-dimensional array of diamond shaped ferromagnetic nanodots
Tunable strong magnon-magnon coupling in two-dimensional array of diamond shaped ferromagnetic nanodots Open
Hybrid magnonics involving coupling between magnons and different quantum particles have been extensively studied during past few years for varied interests including quantum electrodynamics. In such systems, magnons in magnetic materials …
View article: Crystallographic dependence of the spin Hall angle in epitaxial Pt films: Comparison of optical and electrical detection of spin-torque ferromagnetic resonance techniques
Crystallographic dependence of the spin Hall angle in epitaxial Pt films: Comparison of optical and electrical detection of spin-torque ferromagnetic resonance techniques Open
The spin Hall effect appears in nature in two forms. Its intrinsic form is highly dependent on the crystal symmetry while its extrinsic form stems from impurity scattering. Its efficiency is defined by the spin Hall angle, θSH, and has pro…
View article: Voltage controlled on-demand magnonic nanochannels
Voltage controlled on-demand magnonic nanochannels Open
On-demand magnonic nanochannels are achieved by modulation of voltage-controlled magnetic anisotropy in CoFeB/MgO heterostructure.
View article: Structural Phase Dependent Giant Interfacial Spin Transparency in W/CoFeB Thin Film Heterostructure
Structural Phase Dependent Giant Interfacial Spin Transparency in W/CoFeB Thin Film Heterostructure Open
Pure spin current has transfigured the energy-efficient spintronic devices and it has the salient characteristic of transport of the spin angular momentum. Spin pumping is a potent method to generate pure spin current and for its increased…
View article: Structural Phase Dependent Giant Interfacial Spin Transparency in\n W/CoFeB Thin Film Heterostructure
Structural Phase Dependent Giant Interfacial Spin Transparency in\n W/CoFeB Thin Film Heterostructure Open
Pure spin current has transfigured the energy-efficient spintronic devices\nand it has the salient characteristic of transport of the spin angular\nmomentum. Spin pumping is a potent method to generate pure spin current and for\nits increa…
View article: Observation of spectral narrowing and mode conversion in two-dimensional binary magnonic crystal
Observation of spectral narrowing and mode conversion in two-dimensional binary magnonic crystal Open
View article: Observation of angle-dependent mode conversion and mode hopping in 2D annular antidot lattice
Observation of angle-dependent mode conversion and mode hopping in 2D annular antidot lattice Open
We report spin-wave excitations in annular antidot lattice fabricated from 15 nm-thin Ni 80 Fe 20 film. The nanodots of 170 nm diameters are embedded in the 350 nm (diameter) antidot lattice to form the annular antidot lattice, which is ar…
View article: All-optical detection of interfacial spin transparency from spin pumping in β-Ta/CoFeB thin films
All-optical detection of interfacial spin transparency from spin pumping in β-Ta/CoFeB thin films Open
An all-optical method identifies the spin transparency for pure spin current transport through heavy metal/ferromagnet interface.
View article: Active Control of Mode Crossover and Mode Hopping of Spin Waves in a\n Ferromagnetic Antidot Lattice
Active Control of Mode Crossover and Mode Hopping of Spin Waves in a\n Ferromagnetic Antidot Lattice Open
Active control of spin-wave dynamics is demonstrated using broadband\nferromagnetic resonance in two-dimensional Ni80Fe20 antidot lattices arranged\nin hexagonal lattice with fixed lattice constant but varying antidot diameter.\nA strong m…
View article: Active Control of Mode Crossover and Mode Hopping of Spin Waves in a Ferromagnetic Antidot Lattice
Active Control of Mode Crossover and Mode Hopping of Spin Waves in a Ferromagnetic Antidot Lattice Open
Active control of spin-wave dynamics is demonstrated using broadband ferromagnetic resonance in two-dimensional Ni80Fe20 antidot lattices arranged in hexagonal lattice with fixed lattice constant but varying antidot diameter. A strong modi…
View article: All optical detection of picosecond spin-wave dynamics in 2D annular antidot lattice
All optical detection of picosecond spin-wave dynamics in 2D annular antidot lattice Open
Novel magnetic structures with precisely controlled dimensions and shapes at\nthe nanoscale have potential applications in spin logic, spintronics and other\nspin-based communication devices. We report the fabrication of two-dimensional\nb…
View article: All-optical detection of the spin Hall angle in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi mathvariant="normal">W</mml:mi><mml:mo>/</mml:mo><mml:mi>CoFeB</mml:mi><mml:mo>/</mml:mo><mml:msub><mml:mi>SiO</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>heterostructures with varying thickness of the tungsten layer
All-optical detection of the spin Hall angle inheterostructures with varying thickness of the tungsten layer Open
The development of advanced spintronics devices hinges on the efficient generation and utilization of pure spin current. In materials with large spin-orbit coupling, the spin Hall effect may convert charge current to pure spin current and …
View article: Direct Observation of Interfacial Dzyaloshinskii-Moriya Interaction from Asymmetric Spin-wave Propagation in W/CoFeB/SiO2 Heterostructures Down to Sub-nanometer CoFeB Thickness
Direct Observation of Interfacial Dzyaloshinskii-Moriya Interaction from Asymmetric Spin-wave Propagation in W/CoFeB/SiO2 Heterostructures Down to Sub-nanometer CoFeB Thickness Open