Facile Synthesis, Magnetic and Electric Characterization of Mixed Valence La(0.75)K(0.25)AMnTiO(6) (A = Sr and Ba) Perovskites

doi:10.1021/acs.inorgchem.7b01337

	Facile Synthesis, Magnetic and Electric Characterization of Mixed Valence La(0.75)K(0.25)AMnTiO(6) (A = Sr and Ba) Perovskites
	Zhang, Ganghua 1; Chen, Haijie 1; Gu, Zheming ; Zhang, Peizhi 2; Zeng, Tao ; Huang, Fuqiang 1
刊名	INORGANIC CHEMISTRY
	2017
卷号	56 期号:17 页码:10404
ISSN号	0020-1669
DOI	10.1021/acs.inorgchem.7b01337
英文摘要	A new series of mixed valence perovskites, La(0.75)K(0.25)AMnTiO(6) (A = Sr and Ba) nanocubes, have been synthesized by a mild hydrothermal route. From powder X-ray diffraction (XRD) analysis, the crystal structure of La(0.75)K(0.25)AMnTiO(6) was solved as the orthorhombic symmetry (space group Pbnm) with a random A-site or B-site arrangement. The phase purity of the products was confirmed by ICP, SEM, and EDS analyses, and the oxidation states of the B-site metal atoms were determined to be +4 for Ti and +3/+4 for Mn from XPS results. The soft ferromagnetic behavior is present in both samples. The Curie point T-C has been detected as high as 309 K in La0.75K0.25SrMnTiO6 and 217 K in La0.75K0.25BaMnTiO6. A Griffiths phase can be observed at the high temperature region, which is related to the magnetic inhomogeneity induced by the existence of short-range ferromagnetic clusters. The resistivity measurements indicate that the semiconducting properties of the samples can be depicted better by variable range hopping (VRH) due to a diluted double-exchange interaction of Mn3+-O-Mn4+ with Ti4+ doping.
WOS记录号	WOS:000410005600035
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26646]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Shanghai Res Inst Mat, Shanghai Key Lab Engn Mat Applicat & Evaluat, Shanghai 200437, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 3.Minist Powder Mat, Shanghai Res Inst Mat, Shanghai 200437, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ganghua,Chen, Haijie,Gu, Zheming,et al. Facile Synthesis, Magnetic and Electric Characterization of Mixed Valence La(0.75)K(0.25)AMnTiO(6) (A = Sr and Ba) Perovskites[J]. INORGANIC CHEMISTRY,2017,56(17):10404.
APA	Zhang, Ganghua,Chen, Haijie,Gu, Zheming,Zhang, Peizhi,Zeng, Tao,&Huang, Fuqiang.(2017).Facile Synthesis, Magnetic and Electric Characterization of Mixed Valence La(0.75)K(0.25)AMnTiO(6) (A = Sr and Ba) Perovskites.INORGANIC CHEMISTRY,56(17),10404.
MLA	Zhang, Ganghua,et al."Facile Synthesis, Magnetic and Electric Characterization of Mixed Valence La(0.75)K(0.25)AMnTiO(6) (A = Sr and Ba) Perovskites".INORGANIC CHEMISTRY 56.17(2017):10404.