Thermally tunable terahertz magnetic responses of TbFeO3 ceramic
| Autor: | Xiaoqing Xi, Bo Li, Ji Zhou, Xinxi Zeng, Lingling Wu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Terahertz radiation Physics::Optics 02 engineering and technology 01 natural sciences Quality (physics) 0103 physical sciences Materials Chemistry Transmittance Antiferromagnetism Ceramic 010306 general physics Spectroscopy business.industry Process Chemistry and Technology 021001 nanoscience & nanotechnology Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ferromagnetism Excited state visual_art Ceramics and Composites visual_art.visual_art_medium Optoelectronics 0210 nano-technology business |
| Zdroj: | Ceramics International. 44:19054-19057 |
| ISSN: | 0272-8842 |
| Popis: | Terahertz (THz) radiation produces complex and intriguing interactions with many of the magnetically ordered materials. We introduced a THz time-domain spectroscopy with a temperature control attachment to investigate thermally tunable terahertz magnetic responses of TbFeO3. Ferromagnetic (FM) resonances and antiferromagnetic (AFM) resonances were excited simultaneously at T = 3–290 K. The performance of temperature effect on resonances was assessed by their transmittance, resonant frequency shifts and a defined quality factor (Q-factor, Q = ν0/Δν). Transmittance, defined Q-factor and frequency shifts were introduced to assess the thermally tunable performances of terahertz magnetic responses. Overall increased transmittance, increased Q-factor and blue shifts were observed as temperature cools. This will be beneficial to the THz spectroscopic application in controlling responses of various materials. |
| Databáze: | OpenAIRE |
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