|Author||Atoji, M. ♦ Schirber, J. E. ♦ Swenson, C. A.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||METALS, CERAMICS, AND MATERIALS ♦ ALLOTROPY ♦ CAMERAS ♦ CONTROL SYSTEMS ♦ CRYOSTATS ♦ CRYSTALLIZATION ♦ CRYSTALS ♦ LATTICES ♦ LOW TEMPERATURE ♦ MERCURY ♦ PRESSURE ♦ SUPERCONDUCTIVITY ♦ X RADIATION|
|Abstract||The crystal structure of beta -Hg, a pressure induced mcdification of mercury which is the stable form below 79 deg K, was determined. Whereas ordinary ( alpha ) mercury crystallizes in a simple rhombohedral lattice, beta - Hg is found to be a body-centered tetragonal with beta = 3.995 A, and b = 2.825 A at 77 deg K. Both phases are superconductors. A brief description of the low temperature x-ray cryostat and camera is given. The relation of alpha -Hg and beta -Hg to Pauling's resonating valence bond theory of metals is discussed. (auth)|
|Learning Resource Type||Article|
|Publisher Department||Iowa State Univ., Ames|
|Journal||Journal of Chemical Physics|
|Organization||Iowa State Univ., Ames|
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