Keywords :
Experimental/ II-VI semiconductors; liquid semiconductors; liquid structure; mercury compounds; neutron diffraction; zinc compounds/ liquid II-VI semiconductors; cinnabar local order; neutron scattering; deformed cinnabar phase; HgS; HgSe; ZnHgTe/ A6125 Studies of specific liquid structures/ HgS/bin Hg /bin S/bin; HgSe/bin Hg /bin Se/bin; ZnHgTe/ss Hg /ss Te/ss Zn/ss
Abstract :
[en] A short wavelength (lambda=0.7 Aring) neutron scattering experiment has been performed on the II-VI compounds HgS, HgSe and Zn xHg 1-xTe. Liquid HgS can be viewed as a distortion of the blende structure; we show that this distortion decreases gradually with temperature. For Zn xHg 1-xTe, we show that the transition between the six coordinated HgTe liquid and the four coordinated ZnTe liquid is not continuous, the intermediate phase being a deformed cinnabar one
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