Optical Properties of Yttrium Ferrite Films Prepared by Pulse Laser Deposition

被引：0

作者：

Sobola, Dinara ^{[1
]}

Fawaeer, Saleh H. ^{[2
]}

Kockova, Pavla ^{[2
]}

Schubert, Richard ^{[2
]}

Dallaev, Rashid ^{[2
]}

Trcka, Tomas ^{[2
]}

机构：

[1] Czech Acad Sci, Inst Phys Mat, Zizkova 22, Brno 61662, Czech Republic

[2] Brno Univ Technol, Fac Elect Engn & Commun, Dept Phys, Technicka 2848-8, Brno 61600, Czech Republic

来源：

COATINGS | 2024年 / 14卷 / 11期

关键词：

yttrium orthoferrite; plasma laser deposition; optical properties; thin films; bandgap; optoelectronics;

D O I：

10.3390/coatings14111464

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigates the optical properties of yttrium ferrite thin films fabricated via pulse laser deposition. Yttrium orthoferrite, a ferrimagnetic material known for its potential applications in spintronics and photonics, was deposited on single-crystal substrates under controlled conditions to analyze its optical characteristics. The influence of deposition time on the film quality and optical properties was examined. Atomic force microscopy in contact mode revealed surface roughness variations up to 35 nm, indicating the films' ability to cover substrate defects. Reflectance measurements determined the optical band gap, which decreased from 3.17 eV for thinner films (44 nm) to 2.91 eV for thicker films (93 nm). Forbidden electronic transitions were also observed, attributed to heteroepitaxial growth and phonon interactions. These results demonstrate the effect of film thickness on morphology and optical properties, making YFeO3 films promising for a range of optoelectronic applications.

引用

页数：17

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