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Super-necking crystal growth and structural and magnetic properties of SrTb2O4 single crystals
Chen,Zhenqiang1,2; Tang,Zikang3; Li,Hai Feng3; Wu,Si3; Zhu,Yinghao3; Gao,Haoshi3,4; Xiao,Yinguo5; Xia,Junchao3; Zhou,Pengfei3; Ouyang,Defang4; Li,Zhen1,2
Source PublicationACS Omega

We report on single-crystal growths of the SrTb2O4 compound by a super-necking technique with a laser-floating-zone furnace and study the stoichiometry, growth mode, and structural and magnetic properties by scanning electronic microscopy, neutron Laue, X-ray powder diffraction, and the physical property measurement system. We optimized the growth parameters, mainly the growth speed, atmosphere, and the addition of a Tb4O7 raw material. Neutron Laue diffraction displays the characteristic feature of a single crystal. Our study reveals an atomic ratio of Sr:Tb = 0.97(2):2.00(1) and a possible layer by layer crystal growth mode. Our X-ray powder diffraction study determines the crystal structure, lattice constants, and atomic positions. The paramagnetic (PM) Curie-Weiss (CW) temperature θCW = 5.00(4) K, and the effective PM moment Mmea eff = 10.97(1) μB per Tb3+ ion. The data of magnetization versus temperature can be divided into three regimes, showing a coexistence of antiferromagnetic and ferromagnetic interactions. This probably leads to the magnetic frustration in the SrTb2O4 compound. The magnetization at 2 K and 14 T originates from both the Tb1 and Tb2 sites and is strongly frustrated with an expected saturation field at ∼41.5 T, displaying an intricate phase diagram with three ranges.

URLView the original
Indexed BySCIE
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000562142500030
Scopus ID2-s2.0-85089293212
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorChen,Zhenqiang; Tang,Zikang; Li,Hai Feng
Affiliation1.Guangdong Provincial Engineering Research Center of Crystal and Laser Technology,Guangzhou, Guangdong,510632,China
2.Department of Optoelectronic Engineering,Jinan University,Guangzhou, Guangdong,510632,China
3.Joint Key Laboratory of the Ministry of Education,Institute of Applied Physics and Materials Engineering,University of Macau,Taipa,Avenida da Universidade,999078,Macao
4.State Key Laboratory of Quality Research in Chinese Medicine,Institute of Chinese Medical Sciences (ICMS),University of Macau,Taipa,Avenida da Universidade,999078,Macao
5.School of Advanced Materials,Peking University,Shenzhen Graduate School,Shenzhen,518055,China
Recommended Citation
GB/T 7714
Chen,Zhenqiang,Tang,Zikang,Li,Hai Feng,et al. Super-necking crystal growth and structural and magnetic properties of SrTb2O4 single crystals[J]. ACS Omega,2020,5(27):16584-16594.
APA Chen,Zhenqiang,Tang,Zikang,Li,Hai Feng,Wu,Si,Zhu,Yinghao,Gao,Haoshi,Xiao,Yinguo,Xia,Junchao,Zhou,Pengfei,Ouyang,Defang,&Li,Zhen.(2020).Super-necking crystal growth and structural and magnetic properties of SrTb2O4 single crystals.ACS Omega,5(27),16584-16594.
MLA Chen,Zhenqiang,et al."Super-necking crystal growth and structural and magnetic properties of SrTb2O4 single crystals".ACS Omega 5.27(2020):16584-16594.
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