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...

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Main Author: Wibisana Pratama S, Aumedi
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/69693
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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