Room-temperature simultaneously enhanced magnetization and electric polarization in BiFeO3 ceramic synthesized by magnetic annealing

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	Room-temperature simultaneously enhanced magnetization and electric polarization in BiFeO3 ceramic synthesized by magnetic annealing
	Luo, WJ ; Wang, DL ; Wang, FW ; Liu, T ; Cai, JW ; Zhang, LY ; Liu, YL
刊名	APPLIED PHYSICS LETTERS
	2009
卷号	94 期号:20
关键词	THIN-FILM HETEROSTRUCTURES NANOPARTICLES
ISSN号	0003-6951
通讯作者	Luo, WJ (reprint author), Chinese Acad Sci, Inst Elect Engn, Lab Appl Superconduct, Beijing 100190, Peoples R China.
中文摘要	We present a muon spin rotation (mu SR) study of the magnetic and superconducting properties of single crystals of electron-doped BaFe2-xCoxAs2 with x = 0(08, 0.20 and 0.25 (T-c = 9, 25 and 20 K) and of polycrystalline hole-doped Pr1-xSrxFeAsO with x = 0 and 0.2 (T-c = 15 K). In the former series, we observe some interesting parallels with the electron-doped SmFeAsO1-xFx 1111-type system (Drew et al 2009 Nat. Mater. 8 310). In particular, we obtain evidence that strongly disordered static magnetism coexists with superconductivity on a microscopic scale in underdoped samples and even at optimum doping there is a slowing down (or enhancement) of dynamic magnetic correlations below T-c approximate to 25 K. In contrast, for the hole-doped Pr1-xSrxFeAsO samples we obtain evidence for a mesoscopic phase segregation into regions with nearly unperturbed antiferromagnetic (AF) order and others that are nonmagnetic and most likely superconducting. The observed trend resembles the one that was previously reported for hole-doped Ba1-xKxFe2As2 (Aczel et al 2008 Phys. Rev. B 78 214503, Park et al 2009 Phys. Rev. Lett. 102 117006) and thus might be a common property of the hole-doped systems.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/52262]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Luo, WJ,Wang, DL,Wang, FW,et al. Room-temperature simultaneously enhanced magnetization and electric polarization in BiFeO3 ceramic synthesized by magnetic annealing[J]. APPLIED PHYSICS LETTERS,2009,94(20).
APA	Luo, WJ.,Wang, DL.,Wang, FW.,Liu, T.,Cai, JW.,...&Liu, YL.(2009).Room-temperature simultaneously enhanced magnetization and electric polarization in BiFeO3 ceramic synthesized by magnetic annealing.APPLIED PHYSICS LETTERS,94(20).
MLA	Luo, WJ,et al."Room-temperature simultaneously enhanced magnetization and electric polarization in BiFeO3 ceramic synthesized by magnetic annealing".APPLIED PHYSICS LETTERS 94.20(2009).