FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES
The Landau-Lifshitz-Gilbert (LLG) equation shows precession of magnetization inside magnetic materials upon excitation by external magnetic field. Individual spins of electrons could experience a collective excitation and form magnons. On the other hand, polaritons emerge out of strong light-matt...
Saved in:
Main Author: | |
---|---|
Format: | Final Project |
Language: | Indonesia |
Online Access: | https://digilib.itb.ac.id/gdl/view/69693 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Institut Teknologi Bandung |
Language: | Indonesia |
id |
id-itb.:69693 |
---|---|
spelling |
id-itb.:696932022-11-16T10:28:40ZFORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES Wibisana Pratama S, Aumedi Indonesia Final Project ISRR, magnon, microwave cavities, polariton, scattering INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/69693 The Landau-Lifshitz-Gilbert (LLG) equation shows precession of magnetization inside magnetic materials upon excitation by external magnetic field. Individual spins of electrons could experience a collective excitation and form magnons. On the other hand, polaritons emerge out of strong light-matter interaction. Magnonpolariton is a type of polariton produced by interaction between excited magnetic materials and an incident electromagnetic wave. Their presence is shown by a splitting of the dispersion curve which also shows an anticrossing behavior. This thesis shows such interaction through solving the LLG and Maxwell wave equation simultaneously. By setting the electromagnetic wave frequency to be at resonance with the photon and magnon mode, the curve obtained from the scattering approach exhibits the same splitting and anticrossing properties. The magnon-polariton interaction can be influenced by the geometry of the resonator. The resonator used here is in a form of an ISRR attached to a microstrip. The strength of the coupling can be tuned by adjusting the orientation of the ISRR with respect to the microstrip. The magnon mode experiences lower damping as the magnetic field of the ISRR grows stronger than the microstrip’s. This interaction has various application potentials in the field of spintronics. text |
institution |
Institut Teknologi Bandung |
building |
Institut Teknologi Bandung Library |
continent |
Asia |
country |
Indonesia Indonesia |
content_provider |
Institut Teknologi Bandung |
collection |
Digital ITB |
language |
Indonesia |
description |
The Landau-Lifshitz-Gilbert (LLG) equation shows precession of magnetization
inside magnetic materials upon excitation by external magnetic field. Individual
spins of electrons could experience a collective excitation and form magnons. On
the other hand, polaritons emerge out of strong light-matter interaction. Magnonpolariton is a type of polariton produced by interaction between excited magnetic
materials and an incident electromagnetic wave. Their presence is shown by a
splitting of the dispersion curve which also shows an anticrossing behavior. This
thesis shows such interaction through solving the LLG and Maxwell wave equation
simultaneously. By setting the electromagnetic wave frequency to be at resonance
with the photon and magnon mode, the curve obtained from the scattering approach
exhibits the same splitting and anticrossing properties. The magnon-polariton
interaction can be influenced by the geometry of the resonator. The resonator used
here is in a form of an ISRR attached to a microstrip. The strength of the coupling
can be tuned by adjusting the orientation of the ISRR with respect to the microstrip.
The magnon mode experiences lower damping as the magnetic field of the ISRR
grows stronger than the microstrip’s. This interaction has various application
potentials in the field of spintronics. |
format |
Final Project |
author |
Wibisana Pratama S, Aumedi |
spellingShingle |
Wibisana Pratama S, Aumedi FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES |
author_facet |
Wibisana Pratama S, Aumedi |
author_sort |
Wibisana Pratama S, Aumedi |
title |
FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES |
title_short |
FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES |
title_full |
FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES |
title_fullStr |
FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES |
title_full_unstemmed |
FORMULATION OF MAGNON POLARITON INTERACTION INSIDE HOLLOW AND PLANAR CAVITIES |
title_sort |
formulation of magnon polariton interaction inside hollow and planar cavities |
url |
https://digilib.itb.ac.id/gdl/view/69693 |
_version_ |
1822278557816061952 |