Non-Uniform local magnetism in Al-Mn quasicrystals.
01 January 1986
The distribution of local magnetism in Al-Mn quasicrystal alloys has been studied by NMR spin echo techniques. The (55)Mn resonance position is found to be close to the position observed in non- magnetic orthorhombic Al(6)Mn and "alpha" Al(73)Si(10)Mn(17) despite large paramagnetic susceptibilities in the quasicrystals. Analysis of spectral intensities shows that the paramagnetism is due to a minority of Mn sites having local environments which do not occur in the crystals.