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Temperature-dependent structure and magnetization of YCrO3 compound |
| Qian Zhao(赵前)1,2,†, Ying-Hao Zhu(朱英浩)1,3,†, Si Wu(吴思)1,3, Jun-Chao Xia(夏俊超)1,3, Peng-Fei Zhou(周鹏飞)1, Kai-Tong Sun(孙楷橦)1, and Hai-Feng Li(李海峰)1,‡ |
1 Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR 999078, China;
2 State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;
3 Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology, Dongguan 523803, China |
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Abstract We have grown a YCrO$_3$ single crystal by the floating-zone method and studied its temperature-dependent crystalline structure and magnetization by x-ray powder diffraction and PPMS DynaCool measurements. All diffraction patterns were well indexed by an orthorhombic structure with space group of $Pbnm$ (No. 62). From 36 K to 300 K, no structural phase transition occurs in the pulverized YCrO$_3$ single crystal. The antiferromagnetic phase transition temperature was determined as $T_\textrm{N} = 141.58(5)$ K by the magnetization versus temperature measurements. We found weak ferromagnetic behavior in the magnetic hysteresis loops below $T_\textrm{N}$. Especially, we demonstrated that the antiferromagnetism and weak ferromagnetism appear simultaneously upon cooling. The lattice parameters ($a$, $b$, $c$, and $V$) deviate downward from the Grüneisen law, displaying an anisotropic magnetostriction effect. We extracted temperature variation of the local distortion parameter $\varDelta$. Compared to the $\varDelta$ value of Cr ions, Y, O1, and O2 ions show one order of magnitude larger $\varDelta$ values indicative of much stronger local lattice distortions. Moreover, the calculated bond valence states of Y and O2 ions have obvious subduction charges.
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Received: 23 August 2021
Revised: 24 September 2021
Accepted manuscript online: 29 September 2021
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PACS:
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61.05.C-
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(X-ray diffraction and scattering)
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61.50.Ah
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(Theory of crystal structure, crystal symmetry; calculations and modeling)
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75.50.-y
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(Studies of specific magnetic materials)
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75.60.Ej
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(Magnetization curves, hysteresis, Barkhausen and related effects)
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| Fund: Authors acknowledge the opening project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (Grant No. SKL201907SIC), Science and Technology Development Fund, Macao SAR, China (File Nos. 0090/2021/A2 and 0051/2019/AFJ), Guangdong Basic and Applied Basic Research Foundation, China (Guangdong-Dongguan Joint Fund No. 2020B1515120025), University of Macau (MYRG2020-00278-IAPME and EF030/IAPMELHF/2021/GDSTIC), and Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology (Grant No. 2019B121205003). |
Corresponding Authors:
Hai-Feng Li
E-mail: haifengli@um.edu.mo
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Cite this article:
Qian Zhao(赵前), Ying-Hao Zhu(朱英浩), Si Wu(吴思), Jun-Chao Xia(夏俊超), Peng-Fei Zhou(周鹏飞), Kai-Tong Sun(孙楷橦), and Hai-Feng Li(李海峰) Temperature-dependent structure and magnetization of YCrO3 compound 2022 Chin. Phys. B 31 046101
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