Sr${}_2$Cu(PO${}_4$)${}_2$: A real material realization of the 1D nearest neighbor Heisenberg chain

M. D. Johannes, J. Richter, S. -L. Drechsler +1

We present evidence that crystalline Sr_2Cu(PO_4)_2 is a nearly perfect one-dimensional (1D) spin-1/2 anti-ferromagnetic Heisenberg model (AHM) chain compound with nearest neighbor…