YbAgGa<sub>2</sub>: Synthesis, crystal structure and magnetic behaviour
- Grin, Y.
- Ellner, M.
- Hiebl, K.
- Baumgartner, B.
- Rogl, P.
DOIAbstract
A novel intermetallic compound with two crystallographic modifications, alpha- and beta-YbAgGa2, was prepared by argon high frequency melting from ingots of the elements in tantalum crucibles with homogenization heat treatments at 600 degrees C (beta-YbAgGa2) and 400 degrees C (alpha-YbAgGa2). The crystal structure of beta-YbAgGa2 has been refined from powder diffraction data obtained using a Ge(111) primary monochromator and a linear position-sensitive detector. The sample was measured in transmission mode with Cu K alpha(1) radiation in the range 10 degrees<2 theta<130 degrees, Delta theta=0.02 degrees: a=6.9653(3) Angstrom, b=4.3362(2) Angstrom, c=10.3386(4) Angstrom, V=311.85(4) Angstrom(3). Full profile refinement led to the residual v...
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