On the structure of liquid IV-VI semiconductors

Experimental/ electrical resistivity; germanium compounds; IV-VI semiconductors; liquid semiconductors; liquid structure; neutron diffraction; tin compounds; van der Waals forces/ structure; liquid IV-VI semiconductors; crystalline structure; stoichiometric IV-VI semiconductors; NaCl structure; distortion amplitude; corrugated planes; covalently bonded atoms; dispersion Van der Waals forces; neutron scattering; liquid phases; GeS; GeSe; GeTe; SnS; SnSe; SnTe; local order; conductivity/ A6125K Structure of molten salts A7220F Low-field transport and mobility; piezoresistance (semiconductors/insulators) A7280P Electrical conductivity of liquid semiconductors/ GeS/bin Ge /bin S/bin; GeSe/bin Ge /bin Se/bin; GeTe/bin Ge /bin Te/bin; SnS/bin Sn /bin S/bin; SnSe/bin Se /bin Sn/bin; SnTe/bin Sn /bin Te/bin

Abstract :

[en] The crystalline structure of most stoichiometric IV-VI semiconductors can be viewed as a distortion of the NaCl structure; the distortion amplitude depends on the components. As a result, corrugated planes of covalently bonded atoms are linked by dispersion (Van der Waals) forces. Neutron scattering experiments were performed on the liquid phases of a series of IV-VI compounds (GeS, GeSe, GeTe, SnS, SnSe and SnTe). We show that the evolution of the local order is correlated with the conductivity measurements

Disciplines :

Physics
Chemistry

Author, co-author :

Raty, Jean-Yves ; Université de Liège - ULiège > Département de physique > Physique de la matière condensée

Gaspard, Jean-Pierre ; Université de Liège - ULiège > Département de physique > Département de physique

Bionducci, M.

Ceolin, R.

Bellissent, R.

Language :

English

Title :

On the structure of liquid IV-VI semiconductors

Publication date :

1999

Journal title :

Journal of Non-Crystalline Solids

ISSN :

0022-3093

Publisher :

Elsevier Science, Amsterdam, Netherlands

Volume :

250-252

Pages :

277-280280

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://www.sciencedirect.com/science/article/pii/S0022309399002367

Available on ORBi :

since 25 January 2012

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