Extreme field-sensitivity of the magnetic tunneling in Fe-doped Li${}_3$N

M. Fix, J. H. Atkinson, P. C. Canfield +2

The magnetic properties of dilute Li${}_2$(Li${}_{1-x}$Fe${}_x$)N with $x\sim 0.001$ are dominated by the spin of single, isolated Fe atoms. Below $T=10$ K the spin-relaxation times b…