Figure 2: Transport properties of spin valves with and without spin mixers.
From: Evidence for spin selectivity of triplet pairs in superconducting spin valves
Four-point resistance measurements of Nb(4 nm)/Py(8 nm)/Ho(dHo)/Nb(dNb)/Ho(dHo)/Py(5 nm)/FeMn(5 nm) spin valves in the superconducting transition. (a) R–H for 5-nm-thick top and bottom Ho layers and a 26-nm-thick Nb layer; (b) MR versus T and also R–T data for the same spin valve for parallel (black data points and black solid line) and antiparallel (grey data points and grey solid line) configurations of the Py layers. (c) R–H and (d) MR versus T for 5-nm-thick Ho layers and a 20-nm-thick Nb layer. (e) R–H for a 32-nm-thick layer of Nb and no Ho, and the corresponding variation of temperature T on H (demonstrating the stability of T during the measurement of R–H). (f) MR versus T for the spin valve without Ho. Coloured arrows in a,c,e indicate the most probable magnetic configuration of the Py layers in the spin valves. Horizontal black arrows in b and e indicate the corresponding y axis to which the plots correspond to.
