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    Magnetic and transport properties of (Ba1-xKx)Fe2As2

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    Brock_Reuvekamp_Patrick_2009.pdf
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    Author
    Reuvekamp, Patrick.
    Keyword
    Superconductors--Magnetic properties.
    Superconductors--Electric properties.
    
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    URI
    http://hdl.handle.net/10464/2863
    Abstract
    Single crystals of (Bal - xKx)Fe2As2 were prepared using the Sn flux method. Two heating methods were used to prepare the single crystals: the slow heating and rapid heating methods. It was found that the single crystals grown using the slow heating method were not superconducting due to a significant loss of potassium. When the rapid heating method was used, the single crystals were observed to be superconducting with the desired potassium concentration. The energy dispersive X-ray spectroscopy analysis indicated the presence of multiple phases in the single crystals. Using single crystal X-ray diffraction, the crystal structure of the single crystals was found to be 14/mmm tetragonal at room temperature. The magnetic measurements on the single crystals indicated the presence of multiple phases and magnetic impurities.
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