Hyperfineinteraction in the Liquid Tl-Bi-System via NMR of <sup>209</sup>Bi and TDPAD of <sup>206m</sup>Bi*

Şenel, İsmet; Haghani, M.A.; Ploumbidis, D.; Quitmann, D.

doi:10.1524/zpch.1988.156.part_2.605

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…The similarity of results for K against c for Bi-In [8] and Bi-T1 [23], the magnitude and sign of K for liquid p metals and alloys, and the general tendency d K/dc,, > 0 all point to the usefulness of the basic ansatz equation (l), which is based on conduction electrons with local s character at E ~. This is an apparent contradiction to the prevalence of p character suggested by the recent precise UPS and XPS results for liquid p metals in [ 171.…”

Section: Discussionmentioning

confidence: 95%

“…The inapplicability of the free-electron model is stressed in Bi-In by the deviations from linear interpolations (Bi to In) that occur for K(Bi), K(In), x and electrical conductivity, at always roughly around In,Bi [8,22,23]. In [8] the slope and plateaulike behaviour of K(Bi) and K(1n) were ascribed to the occurrence of an association Bi + In e InBi in the liquid alloy.…”

Section: Concentration Dependencementioning

confidence: 99%

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Effects of magnetic impurity plus association on the Knight shifts in liquid Bi-In-Ni alloys

Şenel

Ploumbidis

Quitmann

1989

J. Phys.: Condens. Matter

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In liquid Bi-In-Ni alloys the dependences of the Bi Knight shift K(Bi) and the In Knight shift, K(In), respectively, on the concentrations as well as the linewidths. The concentration ranges were cNi=0-0.20, cBi=0-1 and cIn=0-1, at temperatures of 1000-1300 K. The addition of Ni increases K by Gamma =cNi-1. dK/K approximately=1 for In, and Gamma approximately=0.5 for Bi. The considerable nonlinear changes in K(Bi) and K(In) with cBi/cIn that are known to occur in the binary Bi-In system retain their general shapes on addition of Ni. The contribution of Ni d electrons to both Knight shifts has a large term proportional to cNi2, which is negative for K(In) and positive for K(Bi). The spin polarisation is evaluated. Changes in K in the ternary liquid alloy are compared with a superposition of the changes known from the binaries; at cNi approximately=0.20, deviations occur for K(In).

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Section: Discussionmentioning

confidence: 95%

Section: Concentration Dependencementioning

confidence: 99%

Effects of magnetic impurity plus association on the Knight shifts in liquid Bi-In-Ni alloys

Şenel

Ploumbidis

Quitmann

1989

J. Phys.: Condens. Matter

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“…One may assume that the Knight shift determined by the metallic surrounding of Bi shows a linear dependence on the concentration. This appears justified in view of the comparatively small variations of KB, in the liquid T1-Bi [15] and Te-Bi [14] systems: KA, i.e. Kfor Bi in pure liquid T1, has been measured as KA = 1.0% [15], and KB can be extrapolated from the liquid Bi-Te system [14] as KB = 1.065%.…”

Section: Nomentioning

confidence: 99%

“…This appears justified in view of the comparatively small variations of KB, in the liquid T1-Bi [15] and Te-Bi [14] systems: KA, i.e. Kfor Bi in pure liquid T1, has been measured as KA = 1.0% [15], and KB can be extrapolated from the liquid Bi-Te system [14] as KB = 1.065%. Then one arrives at…”

Section: Nomentioning

confidence: 99%

On the minimum size of metallic clusters in a liquid semiconductor system

Haghani

Dürrwächter

Hartrott

et al. 1990

J. Phys.: Condens. Matter

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Use is made of the fact that the NMR Knight shift K can be used as a local, i.e. atomic scale, indicator of whether the electronic state of the atom is metallic or non-metallic. The authors have measured K for the probe atom Bi in the liquid semiconductor system Tl-Te, and find that KBi drops in a narrower range around Tl2Te than either KTe or the susceptibility. Adopting the quasichemical model for the analysis, it is concluded for this system that a Bi atom needs only a very small number of metallic neighbours (either Tl or Te) in order to show the metallic value of K.

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Measurements of metallic shifts and relaxations in liquid metals and alloys

Quitmann

1990

Hyperfine Interact

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Hyperfineinteraction in the Liquid Tl-Bi-System via NMR of ²⁰⁹Bi and TDPAD of ^206mBi*

Cited by 3 publications

References 3 publications

Effects of magnetic impurity plus association on the Knight shifts in liquid Bi-In-Ni alloys

Effects of magnetic impurity plus association on the Knight shifts in liquid Bi-In-Ni alloys

On the minimum size of metallic clusters in a liquid semiconductor system

Measurements of metallic shifts and relaxations in liquid metals and alloys

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Hyperfineinteraction in the Liquid Tl-Bi-System via NMR of 209Bi and TDPAD of 206mBi*

Cited by 3 publications

References 3 publications

Effects of magnetic impurity plus association on the Knight shifts in liquid Bi-In-Ni alloys

Effects of magnetic impurity plus association on the Knight shifts in liquid Bi-In-Ni alloys

On the minimum size of metallic clusters in a liquid semiconductor system

Measurements of metallic shifts and relaxations in liquid metals and alloys

Contact Info

Product

Resources

About

Hyperfineinteraction in the Liquid Tl-Bi-System via NMR of ²⁰⁹Bi and TDPAD of ^206mBi*