金属学报  1995, Vol. 31 Issue (10): 438-444

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金属的传导电子密度与正电子湮没率的关系

王京阳;熊良钺;龙期威

中国科学院金属研究所;中国科学院国际材料物理中心

CONDUCTION ELECTRON DENSITY AND POSITRON ANNIHILATION RATE IN METAL

WANG Jingyang; XIONG Liangyue; LONG Qiwei(LUNG CW) (Institute of Metal Research; Chinese Academy of Sciences; International Centre for Materials Physics;Shenyang 110015)(Manuscript received 1995-02-09;in revised form 1995-06-02)

王京阳;熊良钺;龙期威. 金属的传导电子密度与正电子湮没率的关系[J]. 金属学报, 1995, 31(10): 438-444.
, , . CONDUCTION ELECTRON DENSITY AND POSITRON ANNIHILATION RATE IN METAL[J]. Acta Metall Sin, 1995, 31(10): 438-444.

摘要 参考文献 相关文章 Metrics 全文: PDF(521 KB)   摘要: 应用电荷自洽离散变分Ｘα方法（ＳＣＣ─ＤＶＭ─ＸαＭｅｔｈｏｄ）计算了金属中的传导电子密度，得出了金属的传导电子密度与正电子湮没率的关系，并由此直接给出了增强因子的形式。同时讨论了在这些金属中正电子与芯电子湮没所占比例及其对正电子湮没率的影响。 关键词 ： 金属传导电子密度,  正电子湮没率,  离散变分Ｘ＿α方法     Abstract：Self─consistent charge discrete variational Xα cluster method (SCC─DVM ─Xα) is used to calculate the conduction electron densities of metals. Comparing with experimental data of positron annihilation rate,a relation between electron density and positron annihilation rate,and an expression of enhancement factor were obtained. Based on this relation,the fractions of core electron annihilation are discussed.Correspondent: WANG Jingyang, Institute of Metal Research ,Chinese Academy of Sciences, International Centre for Materials Physics, Shenyang 110015. Key words： conduction electron density    positron annihilation rate    discrete variational X_α method 收稿日期: 1995-10-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 王京阳 熊良钺 龙期威 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1995/V31/I10/438 1BoronskiE,NieminenRM．PhysRev,1986;B34:38202ChakkrabortyT,PietilainenP．PhysRevLett,1982;49:10343SeegerA,BanhartF．PhysStatusSolidi,1987;(a)102:1714DaniukS,SobM,RubaszekA．PhysRev,1991;B43:25805WelchDO,LynnKG．PhysStatusSolidi1976;(b)77:2776StottMJ,P．Kubica．PhysRev,1975;B11:117Arias─LiimontaJ,VarlashkinPG．PhysRev,1975;B11:1428SternePA,KaiserJH．PhysRev,1991;B43:138299邓文.中国科学院金属研究所博士学位论文,199410BrandtW,DupasquierA．PositronSolid─StatePhysics,Amsterdem,NewYork,Oxford:NorthHolland,1983:20011TsujimotoT,HashimotoK．MRSSympProc,1989;133:39112ColettiJ,BabuVS,PavlovicAS,SeehraMS．PhysRev,1990;B42:1075413徐东升.中国科学院金属研究所博士学位论文,1994 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed