Direct Observation of Paramagnons in Palladium

	Direct Observation of Paramagnons in Palladium
	Doubble, R ; Hayden, SM ; Dai, PC ; Mook, HA ; Thompson, JR ; Frost, CD
刊名	PHYSICAL REVIEW LETTERS
	2010
卷号	105 期号:2
关键词	FERROMAGNETIC METALS ELECTRONIC-STRUCTURE SPIN FLUCTUATIONS PD TRANSITION HEAT TEMPERATURE ALLOYS NI3GA
ISSN号	0031-9007
通讯作者	Doubble, R (reprint author), Univ Bristol, HH Wills Phys Lab, Tyndall Ave, Bristol BS8 1TL, Avon, England.
中文摘要	We report an inelastic neutron scattering study of the spin fluctuations in the nearly ferromagnetic element palladium. Dispersive over-damped collective magnetic excitations or "paramagnons'' are observed up to 128 meV. We analyze our results in terms of a Moriya-Lonzarich-type spin-fluctuation model and estimate the contribution of the spin fluctuations to the low-temperature heat capacity. In spite of the paramagnon excitations being relatively strong, their relaxation rates are large. This leads to a small contribution to the low-temperature electronic specific heat.
收录类别	SCI
资助信息	U.S. NSF [DMR-0756568]
语种	英语
公开日期	2014-02-20
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57839]
专题	物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文
推荐引用方式 GB/T 7714	Doubble, R,Hayden, SM,Dai, PC,et al. Direct Observation of Paramagnons in Palladium[J]. PHYSICAL REVIEW LETTERS,2010,105(2).
APA	Doubble, R,Hayden, SM,Dai, PC,Mook, HA,Thompson, JR,&Frost, CD.(2010).Direct Observation of Paramagnons in Palladium.PHYSICAL REVIEW LETTERS,105(2).
MLA	Doubble, R,et al."Direct Observation of Paramagnons in Palladium".PHYSICAL REVIEW LETTERS 105.2(2010).