Knight shifts and bonding in liquid semiconductors

Ott, K.; Dürrwächter, M.; Haghani, M.A.; Hartrott, M. v.; Sauer, Bettina; Quitmann, D.

doi:10.1016/0022-3093(89)90734-5

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1990

1992

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Cited by 2 publications

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“…The necessary minimum cluster size is 1 + No (the 1 is for the Bi). Our results, (7) thus indicate a small number like 2 or 3 in condensed matter at high temperature. It may be compared to the minimum cluster sizes for isolated metallic clusters where, e.g., the number is about 10 for Na clusters in U ~C U O [27].…”

Section: Nosupporting

confidence: 60%

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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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Section: Nosupporting

confidence: 60%

“…The wider shapes calculated in figure 2 for larger No may well apply to systems other than the one of interest here. A discussion of the similar case of an As impurity in liquid Ga,Tel-, will be given elsewhere [28].…”

Section: Nomentioning

confidence: 99%