Growth of manganite single crystals and their properties
|Yakov M. Mukovskii|
Moscow State Steal & Alloys Institute, Moscow 117936, Russian Federation
Features of manganite single crystal growth by the non-crucible floating zone melting method with radiation heating are discussed. Compounds( La1-xAx)MnO3 (A = Sr, Ca, Ba) with x < 0.2 can be fabricated using feed rods of (La1-xAx)yMnO3 composition with y = 0.93-0.97 because Mn is evaporated from the melt larger than other elements. Due to the fact that the distribution coefficient (K = CSolid/CLiquid) for Ca and Ba is considerably less than unity growing of such crystals with x > 0.2 is rather unstable, and element distribution along an ingot is inhomogeneous. To fabricate quality crystals travelling solvent floating zone method was used.
Presentation: invited oral at E-MRS Fall Meeting 2003, Symposium D, by Yakov M. Mukovskii
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-05-12 11:27 Revised: 2009-06-08 12:55