Inelastic Light Scattering from Semiconductor Plasmas in a Magnetic Field

1970 ◽  
Vol 1 (3) ◽  
pp. 1125-1135 ◽  
Author(s):  
F. A. Blum
Keyword(s):  
Magnetic Field ◽  
Light Scattering ◽  
Inelastic Light Scattering ◽  
Semiconductor Plasmas

Shell Structure and Electronic Excitations of Quantum Dots in a Magnetic Field Probed by Inelastic Light Scattering

1996 ◽  
Vol 77 (2) ◽  
pp. 354-357 ◽  
Author(s):  
D. J. Lockwood ◽  
P. Hawrylak ◽  
P. D. Wang ◽  
C. M. Sotomayor Torres ◽  
A. Pinczuk ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Light Scattering ◽  
Shell Structure ◽  
Electronic Excitations ◽  
Inelastic Light Scattering

Resonant inelastic light scattering in remotely doped wide parabolic GaAs/AlxGa1−x quantum wells in a magnetic field

1994 ◽  
Vol 305 (1-3) ◽  
pp. 208-214
Author(s):  
J.H. Burnett ◽  
H.M. Cheong ◽  
R.M. Westervelt ◽  
W. Paul ◽  
P.F. Hopkins ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Light Scattering ◽  
Quantum Wells ◽  
Inelastic Light Scattering

scholarly journals Magnetic Modes in Rare Earth Perovskites: A Magnetic-Field-Dependent Inelastic Light Scattering study

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Surajit Saha ◽  
Bing-Chen Cao ◽  
M. Motapothula ◽  
Chun-Xiao Cong ◽  
Tarapada Sarkar ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Rare Earth ◽  
Light Scattering ◽  
Inelastic Light Scattering ◽  
Field Dependent ◽  
Scattering Study

scholarly journals Influence of size polydispersity on magnetic field tunable structures in magnetic nanofluids containing superparamagnetic nanoparticles.

2021 ◽  
Author(s):  
Dillip Kumar Mohapatra ◽  
Philip James Camp ◽  
John Philip
Keyword(s):  
Magnetic Field ◽  
Particle Size ◽  
Light Scattering ◽  
Optical Microscopy ◽  
Brownian Dynamics ◽  
Phase Contrast ◽  
Superparamagnetic Nanoparticles ◽  
Magnetic Nanofluids ◽  
Dynamics Simulations ◽  
Brownian Dynamics Simulations

We probe the influence of particle size polydispersity on field-induced structures and structural transitions in magnetic fluids (ferrofluids) using phase contrast optical microscopy, light scattering and Brownian dynamics simulations. Three...

scholarly journals Ferro-self-assembly: magnetic and electrochemical adaptation of a multiresponsive zwitterionic metalloamphiphile showing a shape-hysteresis effect

2021 ◽  
Vol 12 (1) ◽  
pp. 270-281
Author(s):  
Stefan Bitter ◽  
Moritz Schlötter ◽  
Markus Schilling ◽  
Marina Krumova ◽  
Sebastian Polarz ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Real Time ◽  
Self Assembly ◽  
Hysteresis Effect ◽  
The Self ◽  
Self Organization ◽  
Stimuli Responsive ◽  
Optical Birefringence

The self-organization properties of a stimuli responsive amphiphile can be altered by subjecting the paramagnetic oxidized form to a magnetic field of 0.8 T and monitored in real time by coupling optical birefringence with dynamic light scattering.

An unified approach to inelastic light scattering in Keldysh–Schwinger functional integral formalism

2015 ◽  
Vol 29 (07) ◽  
pp. 1550040 ◽  
Author(s):  
Hyun Cheol Lee
Keyword(s):  
Light Scattering ◽  
Cross Sections ◽  
Golden Rule ◽  
Functional Integral ◽  
Integral Formalism ◽  
Inelastic Light Scattering ◽  
Scattering Geometry ◽  
The One ◽  
Resonant Part ◽  
Functional Integral Formalism

We propose a theoretical framework which can treat the nonresonant and the resonant inelastic light scattering on an equal footing in the form of correlation function, employing Keldysh–Schwinger functional integral formalism. The interference between the nonresonant and the resonant process can be also incorporated in this framework. This approach is applied to the magnetic Raman scattering of two-dimensional antiferromagnetic insulators. The entire set of the scattering cross-sections are obtained at finite temperature, the result for the resonant part agrees with the one obtained by the conventional Fermi golden rule at zero temperature. The interference contribution is shown to be very sensitive to the scattering geometry and the band structure.

ORIENTATION DYNAMICS OF MAGNETORHEOLOGICAL FLUIDS SUBJECT TO ROTATING EXTERNAL FIELDS

2001 ◽  
Vol 15 (06n07) ◽  
pp. 758-766 ◽  
Author(s):  
SONIA MELLE ◽  
MIGUEL A. RUBIO ◽  
GERALD G. FULLER
Keyword(s):  
Magnetic Field ◽  
Light Scattering ◽  
Simple Model ◽  
Critical Frequency ◽  
Optical Methods ◽  
Phase Lag ◽  
Rotating Magnetic Fields ◽  
Mr Fluids ◽  
Small Angle Light Scattering ◽  
The Magnetic Field

The formation and orientation of field-induced structures in magnetorheological (MR) fluids subject to rotating magnetic fields have been studied using two optical methods: scattering dichroism and small angle light scattering (SALS). The SALS patterns show how these chain-like aggregates follow the magnetic field with the same frequency but with a retarded phase angle for all the frequencies measured. Using scattering dichroism two different behaviors for both, dichroism and phase lag, are found below or above a critical frequency. Experimental results have been reproduced by a simple model considering the torques balance on the chain-like aggregates.

MAGNETOSTATIC MODES IN NANOMETER-SIZED FERROMAGNETIC AND ANTIFERROMAGNETIC TUBES

2007 ◽  
Vol 14 (03) ◽  
pp. 471-480 ◽  
Author(s):  
T. K. DAS ◽  
M. G. COTTAM
Keyword(s):  
Magnetic Field ◽  
Spin Dynamics ◽  
Continuum Theory ◽  
Inelastic Light Scattering ◽  
Dipole Interactions ◽  
Large Length ◽  
Magnetostatic Modes ◽  
Magnetostatic Spin Waves ◽  
Macroscopic Continuum ◽  
Cylindrical Axis

A theory is presented for the magnetostatic modes in ferromagnetic and antiferromagnetic nanotubes, which have a large length-to-radius aspect ratio and an external magnetic field parallel to the cylindrical axis. The surface and bulk magnetic excitations (or magnetostatic spin waves) are studied for cases where the dipole–dipole interactions are dominant in the spin dynamics. This situation can be realized at sufficiently small wavevectors by inelastic light scattering or magnetic resonance techniques. A macroscopic continuum theory is developed, using the magnetostatic form of Maxwell's equations and the electromagnetic boundary conditions, and the characteristic equations (or dispersion relations) are deduced for the magnetostatic modes. Numerical calculations are presented for ferromagnetic and antiferromagnetic nanostructures, taking Ni 80 Fe 20 and MnF 2, respectively. The spatial variations of the mode amplitudes are also investigated.

Sign in / Sign up

Export Citation Format

Share Document