Spin reorientation transition and spin dynamics study of perovskite orthoferrite TmFeO(3)detected by electron paramagnetic resonance

doi:10.1039/d0cp00918k

	Spin reorientation transition and spin dynamics study of perovskite orthoferrite TmFeO(3)detected by electron paramagnetic resonance
	Sharma, Poorva 7,8; Fan, Jiyu 7; Kumar, Ashwini 8; Yogi, Arvind 9; Chai, Yisheng 5; Ren, Wei 1; Cao, Shixun 1; Wang, Caixia 6; Ma, Chunlan 2; Tong, Wei 3
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2020-10-07
卷号	22
ISSN号	1463-9076
DOI	10.1039/d0cp00918k
通讯作者	Sharma, Poorva(poorva@nuaa.edu.cn) ; Fan, Jiyu(jiyufan@nuaa.edu.cn) ; Yang, Hao(yanghao@nuaa.edu.cn)
英文摘要	The temperature-dependent spin-reorientation transition (SRT) and spin interaction mechanism of bulk TmFeO(3)were studied by the electron paramagnetic resonance (EPR) method. The combined experimental results of magnetic curves and EPR spectra confirmed that there is an antiferromagnetic transition at 85 K with a reentering ferromagnetic state due to the spin-reorientation behavior. In the high-temperature region ofT> 90 K, there are three distinct resonance peaks in the EPR spectrum, which indicates the presence of multiple magnetic phases (canted antiferromagnetic, weak ferromagnetic, and paramagnetic phases). In the low-temperature region (T< 85 K), the temperature dependence of the EPR linewidth, effectiveg-factor, and intensity can be used to infer a strong spin-lattice correlation. Different magnetic interactions such as Fe3+-Fe3+, Fe3+-Tm3+, and Tm3+-Tm(3+)lead to a paramagnetic-canted antiferromagnetic phase atT> 85 K, with SRT between 85-65 K and ferromagnetic interaction at the lower temperature, respectively. Above 90 K, we find that the spin relaxation mechanism is determined by the mixture of spin-spin and spin-lattice interactions. Below 85 K, the transverse relaxation rate increases with the decrease in temperature, which is consistent with the weakening of the fluctuating internal field in this temperature region. This EPR detection provides a new method to clarify the strong spin coupling in antiferromagnetic materials.
资助项目	Faculty Startup Fund for Scientific Research by Nanjing University of Aeronautics and Astronautics[1008YAH19081] ; National Key Research and Development Program of China[2017YFA0403502] ; National Natural Science Foundation of China[11774172] ; National Natural Science Foundation of China[11974181]
WOS关键词	MAGNETIC-PROPERTIES ; LATTICE ; RELAXATION ; EPR ; FERROMAGNETISM ; LINEWIDTH
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000573875300041
资助机构	Faculty Startup Fund for Scientific Research by Nanjing University of Aeronautics and Astronautics ; National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104305]
专题	中国科学院合肥物质科学研究院
通讯作者	Sharma, Poorva; Fan, Jiyu; Yang, Hao
作者单位	1.Shanghai Univ, Int Ctr Quantum & Mol Syst, Mat Genome Inst, Dept Phys, Shanghai 200444, Peoples R China 2.Suzhou Univ Sci & Technol, Sch Phys Sci & Technol, Key Lab Micro & Nano Heat Fluid Flow Technol & En, Suzhou, Peoples R China 3.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China 4.Lomonosov Moscow State Univ, Fac Phys, Dept Magnetism, Leninskie Gory B 1-2,GSP 1, Moscow 119991, Russia 5.Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China 6.Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou, Jiangsu, Peoples R China 7.Nanjing Univ Aeronaut & Astronaut, Dept Appl Phys, Nanjing 210016, Peoples R China 8.Luzhou Vocat & Tech Coll, Key Lab Multfunct Mat, Dept Elect Engn, Luzhou 646000, Sichuan, Peoples R China 9.UGC DAE Consortium Sci Res, Indore 452001, India
推荐引用方式 GB/T 7714	Sharma, Poorva,Fan, Jiyu,Kumar, Ashwini,et al. Spin reorientation transition and spin dynamics study of perovskite orthoferrite TmFeO(3)detected by electron paramagnetic resonance[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2020,22.
APA	Sharma, Poorva.,Fan, Jiyu.,Kumar, Ashwini.,Yogi, Arvind.,Chai, Yisheng.,...&Yang, Hao.(2020).Spin reorientation transition and spin dynamics study of perovskite orthoferrite TmFeO(3)detected by electron paramagnetic resonance.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,22.
MLA	Sharma, Poorva,et al."Spin reorientation transition and spin dynamics study of perovskite orthoferrite TmFeO(3)detected by electron paramagnetic resonance".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 22(2020).