期刊
CERAMICS INTERNATIONAL
卷 44, 期 15, 页码 19054-19057出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2018.07.088
关键词
Terahertz; TbFeO3; Antiferromagnetic resonances; Ferromagnetic resonances; Thermal tunability
资金
- National Key Research and Development Program of China [2017YFB0406300]
- National Natural Science Foundation of China [51788104, 51532004]
- Science and Technology Plan of Guangdong Province [20148090907002, 20178090907004]
- Science and Technology Plan of Shenzhen City [JCYJ20160301154309393]
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 anti ferromagnetic (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 = nu(o)/Delta nu). 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.
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