Hidden quantum spin gap state in the static stripe phase of La${}_{2-x}$Sr${}_x$CuO${}_4$

M. Kofu, S. -H. Lee, M. Fujita +3

Low energy spin excitations were investigated in the static stripe phase of La_{2-x}Sr_xCuO_4 using elastic and inelastic neutron scattering on single crystals. For x = 1/8 in whic…