KAJIAN TEORITIS RAGAM POLARITON FONON DALAM BAHAN GIANT DIELECTRIC L i AND T DOPED N i O (LTNO)

SITI NOOR FATIMAH, NIM. 07620009 (2013) KAJIAN TEORITIS RAGAM POLARITON FONON DALAM BAHAN GIANT DIELECTRIC L i AND T DOPED N i O (LTNO). Skripsi thesis, UIN SUNAN KALIJAGA.

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Abstract

A theoretical study of the polariton dispersion curves on the surface of the giant dielectric material Li and Ti doped NiO (LTNO) has been done. This study gives a theoretical description of the (LTNO) surface and bulk modes at frequency range of 0-100 cm -1 . The dispersion relation is obtained through Maxwell equation. Substitution of H field and E field into the wave differential equation and application of boundary conditions will lead to the dispersion relations. The dynamics of internal or parameters system is included in the material permitivity. The surface polariton only propagate in TM mode (Transverse Magnetic) and they are resiprocal in the sense that the change of wave vector direction does not change the frequency, or     qq   . The computation of ATR (Attenuated Total Reflection) reflectivity shows that the surface polariton can be detected when the distance between the Silicon prism and the sample reaches an optimum value of 0,1 cm. Surface modes are also provided by using ATR which is in agreement with the relation dispersion. Key words : Phonon Polariton – Giant Dielectric–Resiprocal

Item Type: Thesis (Skripsi)
Subjects: Fisika
Divisions: Fakultas Sains dan Teknologi > Fisika (S1)
Depositing User: Miftahul Ulum [IT Staff]
Date Deposited: 12 Jul 2013 15:41
Last Modified: 28 Jan 2016 11:38
URI: http://digilib.uin-suka.ac.id/id/eprint/8843

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