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1996 (1)
1993 (1)
1Author    P.Craig TaylorRequires cookie*
 Title    Nuclear Quadrupole Resonance in Amorphous Semiconductors  
 Abstract    Nuclear quadrupole resonance (NQR) has provided a valuable tool for investigating the local structural order in semiconducting glasses. Measurements of NQR lineshapes and spin-lattice relaxation times help elucidate the local structural order and the unusual vibrational properties, respectively, of these glasses. In addition, NQR lineshape measurements on samples that are made under conditions that produce solids whose structures are far from equilibrium, such as fast-evap-orated films or rapidly-drawn fibers, provide detailed information on the changes in the local structural order from that which occurs in the well-annealed amorphous semiconductors. 
  Reference    Z. Naturforsch. 51a, 603—610 (1996); received November 20 1995 
  Published    1996 
  Keywords    NQR, chalcogenide glasses, amorphous semiconductors, structure, vibrational properties 
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 TEI-XML for    default:Reihe_A/51/ZNA-1996-51a-0603.pdf 
 Identifier    ZNA-1996-51a-0603 
 Volume    51 
2Author    Roger Blachnik, Peter Lönnecke, Jürgen NußRequires cookie*
 Title    Gläser und Verbindungen im System P4S4-A s 4S4-A s 4Se4-P 4Se4 Glass and Com pounds in the System P4S4-A s 4S4-A s 4Se4-P 4Se4  
 Abstract    Glas forming regions and glass temperatures o f the system P4S4-A s 4S4-A s 4Se4-P 4Se4 have been determined by thermoanalytical and X-ray methods. In the whole system crystalline sam­ ples have been obtained by annealing. From the pure phases A s4S4 and P4Se4 broad regions o f solid solutions extend into the system. In the P4S4 corner the form ation o f A 4B3 (A = P, As; B = S, Se) molecules is observed. As with A 4B3 m olecules, a stepwise substitution o f P by As atoms, and o f S by Se atom s is possible. All molecules o f the series P4_"As"S4 and A s4S4_"Sen (n = 0, 1, 2, 3, 4) were detected by 31P N M R and/or mass spectroscopy. 
  Reference    Z. Naturforsch. 48b, 1175—1180 (1993); eingegangen am 19. Mai 1993 
  Published    1993 
  Keywords    Phosphorus Arsenic Chalcogenides, Chalcogenide Glasses, Solid Solutions 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1175.pdf 
 Identifier    ZNB-1993-48b-1175 
 Volume    48