Significantly Altered Macroscopic Magnetic Properties and Terahertz Magnetic Resonance of Gadolinium Orthoferrite by Titanium Addition
Significantly Altered Macroscopic Magnetic Properties and Terahertz Magnetic Resonance of Gadolinium Orthoferrite by Titanium Addition
复制标题
添加钛显着改变钆正铁氧体的宏观磁性能和太赫兹磁共振
DOI：
10.1109/tmag.2015.2512219
复制
发表时间：
2016-05
影响因子：
2.1
通讯作者：
Cui, Tie Jun
中科院分区：
文献类型：
--
作者：
Fu, Xiaojian;Zeng, Xinxi;Zhou, Ji;Cui, Tie Jun
本文制备了组成为GdFe 1-xTixO 3的掺钛钆铁氧体陶瓷，并对其相结构、拉曼光谱、宏观磁性能和太赫兹磁响应进行了研究。结果表明，当Ti含量达到10 at%时，由于晶格膨胀，衍射峰和低频拉曼模发生红移。Ti的加入增加了陶瓷的铁磁（F）成分，导致了低温下磁化强度的增强以及太赫兹透射谱中F模的出现，特别是对于x = 0.01的陶瓷。同时，当x增大到0.10时，减弱的内场也导致了室温下磁滞回线的出现和200 K以上反铁磁模的红移。在复合陶瓷中观察到F和AF响应，这意味着在太赫兹磁性器件中的潜在应用。
In this paper, titanium-doped gadolinium orthoferrite ceramics with the composition of GdFe1-xTixO3 were prepared, and the phase structure, Raman spectra, macroscopic magnetic property, and terahertz magnetic response were thoroughly investigated. It is shown that as Ti content reaches 10 at%, the diffraction peaks and low-frequency Raman modes shift red due to lattice expansion. The increased ferromagnetic (F) component by Ti addition results in the enhancement of magnetization at low temperatures as well as the emergency of F mode in the terahertz transmission spectra, especially for x = 0.01 ceramic. Simultaneously, as x increases to 0.10, the weakened internal field also causes the arising of hysteresis loop at room temperature and the red shift of antiferromagnetic (AF) mode above 200 K. Both the F and AF responses were observed in the composite ceramics, which implies the potential application in terahertz magnetic devices.
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影响因子：
3.3
作者：
I. Solovyev
通讯作者：
I. Solovyev
影响因子：
2.5
作者：
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通讯作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
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