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  • Alkali metal manganese selenides  (1)
  • GalnAs  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Microelectronic Engineering 18 (1992), S. 149-173 
    ISSN: 0167-9317
    Keywords: GaInP ; GalnAs ; GalnAsP ; InP ; Low-pressure MOVPE ; Process parameters ; Reactor design ; Substrate preparation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    ISSN: 0044-2313
    Keywords: Alkali metal manganese selenides ; alkali metal manganese tellurides ; crystal structure ; spin structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alkali Metal Manganese Selenides and Tellurides - Synthesis, Crystal and Spin StructuresThe compounds Rb2Mn3Se4, Cs2Mn3Se4, Rb2Mn3Te4 and Cs2Mn3Te4 were synthesized by the reaction of alkali metal carbonates with chalcogen and Mn or MnCO3 in a stream of hydrogen charged with chalcogen.Structural investigations show that all compounds crystallize in isotypic atomic arrangements (Cs2Mn3S4-type, space group Ibam, Z = 4). Additionally neutron diffraction experiments were carried out and yielded the spin structures of Rb2Mn3Se4 and Cs2Mn3Se4 (Shubnikov space group Ibam').The structural related selenides ALiMnSe2 and ALiZnSe2 (A = K, Rb or Cs) were synthesized by analogous reactions. All these compounds are isotypic and crystallize in the BaZn2P2-structure type.
    Notes: Die Verbindungen Rb2Mn3Se4, Cs2Mn3Se4, Rb2Mn3Te4 und Cs2Mn3Te4 wurden durch Umsetzungen von Alkalimetallcarbonaten mit Mangan oder Mangancarbonat und Chalkogen in einem mit Chalkogen beladenen Wasserstoffstrom erhalten.Kristallstrukturuntersuchungen ergaben, daß alle Verbindungen isotyp kristallisieren (Cs2Mn3S4-Typ, Raumgruppe Ibam, Z = 4). Neutronenbeugungsuntersuchungen ermöglichten darüber hinaus die Bestimmung der antiferromagnetischen Spinstrukturen von Rb2Mn3Se4 und Cs2Mn3Se4 (Shubnikov-Raumgruppe Ibam').Die strukturverwandten Selenide ALiMnSe2 und ALiZnSe2 mit A = K, Rb oder Cs wurden über analoge Umsetzungen synthetisiert. Sie kristallisieren alle im BaZn2P2-Typ.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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