Disorder-driven non-Fermi liquid behavior in itinerant ferromagnet alpha-Co5Ge3

doi:10.1088/1361-648X/ab62be

	Disorder-driven non-Fermi liquid behavior in itinerant ferromagnet alpha-Co5Ge3
	Song, Meng 2,3; Xian, Cong 2,3; Wang, Yihao 2,3; Song, Jiangpeng 2,3; Li, Zhihao 3; Ling, Langsheng 3; Zhang, Lei 3; Han, Yuyan 3; Cao, Liang 3; Xiong, Yimin 1,3
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	2020-04-10
卷号	32
关键词	non-Fermi liquid behavior spin fluctuation disorder itinerant ferromagnet anomalous Hall effect
ISSN号	0953-8984
DOI	10.1088/1361-648X/ab62be
通讯作者	Han, Yuyan(yyhan@hm.ac.cn)
英文摘要	The physical properties of itinerant ferromagnet -Co5Ge3 with both strong disorder and spin fluctuations was studied. The dc and ac susceptibility show that both spin fluctuations and disorder dominate the physical properties. In the spin glass phase, with a coexisting ferromagnetic state (30 K), both non-Fermi liquid behavior and large exponent of scaling relation of are observed and attributed to the spin fluctuations and disorder induced by cobalt defects. Upon the increase of external field, Fermi liquid behavior restores due to the suppression of spin fluctuations and disorder. In addition, a large anomalous Hall coefficient R-s is observed. Our results suggest that -Co5Ge3 is a typical itinerant ferromagnet to explore the interplay of disorder and spin fluctuations.
资助项目	National Key Research and Development Program of China[2016YFA0300404] ; National Key Research and Development Program of China[2017YFA0402900] ; NSFC[U1432138] ; NSFC[11474288] ; NSFC[11574317] ; NSFC[11574322] ; NSFC[U1732276] ; Hundred Talents Program of the Chinese Academy of Sciences ; High Magnetic Field Laboratory of Anhui Province
WOS关键词	QUANTUM CRITICAL-POINT ; MAGNETIC-PROPERTIES ; SPIN FLUCTUATIONS ; FIELD THEORY ; TEMPERATURE ; ELECTRON ; RESISTIVITY ; NI3AL ; PHASE ; MAGNETORESISTANCE
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000520150400001
资助机构	National Key Research and Development Program of China ; NSFC ; Hundred Talents Program of the Chinese Academy of Sciences ; High Magnetic Field Laboratory of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103837]
专题	中国科学院合肥物质科学研究院
通讯作者	Han, Yuyan
作者单位	1.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Song, Meng,Xian, Cong,Wang, Yihao,et al. Disorder-driven non-Fermi liquid behavior in itinerant ferromagnet alpha-Co5Ge3[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2020,32.
APA	Song, Meng.,Xian, Cong.,Wang, Yihao.,Song, Jiangpeng.,Li, Zhihao.,...&Xiong, Yimin.(2020).Disorder-driven non-Fermi liquid behavior in itinerant ferromagnet alpha-Co5Ge3.JOURNAL OF PHYSICS-CONDENSED MATTER,32.
MLA	Song, Meng,et al."Disorder-driven non-Fermi liquid behavior in itinerant ferromagnet alpha-Co5Ge3".JOURNAL OF PHYSICS-CONDENSED MATTER 32(2020).