This article addresses the design, development, and evaluation of T-shirt prototypes that embed novel textile sensors for the capture of cardio and respiratory signals. The sensors are connected through textile interconnects to either an embedded custom-designed data acquisition and transmission unit or to snap fastener terminals for connection to external monitoring devices. The performance of the T-shirt prototype is evaluated in terms of signal-to-noise ratio amplitude and signal interference caused by baseline wander and motion artefacts, through laboratory tests with subjects in standing and walking conditions. Performance tests were also conducted in a hospital environment using a T-shirt prototype connected to a commercial three-channel Holter monitoring device. The textile sensors and interconnects were realized with the assistance of an industrial six-needle digital embroidery tool and their resistance to wear addressed with normalized tests of laundering and abrasion. The performance of these wearable systems is discussed, and pathways and methods for their optimization are highlighted.

Co-Re superlattices were prepared that show either antiferromagnetic or ferromagnetic coupling between the Co layers depending on the Re spacer thickness. Enhanced saturation magnetoresistance occurs for antiferromagnetically coupled layers. The saturation magnetoresistance decays exponentially with Re thickness but does not depend critically on the Co thickness.

Co‐Re superlattices were prepared with nominal periodicities of 65–67 Å and varying bilayer composition. The structural characterization was made by x‐ray diffraction and Rutherford backscattering spectrometry (RBS). First, second, and third order satellites are observed in the x‐ray diffractogram at 2θ values and with intensities close to those predicted by simulation. This confirms the coherence of the superlattice. RBS measurements combined with RUMP simulations give information on interface sharpness and the absolute thicknesses of the Co and Re layers. Discrepancies between the experimental and simulated diffractograms are found for Co thicknesses below 18 Å

We report on exchange bias of ${\mathrm{Mn}}_{\text{100−x}}{\mathrm{Pt}}_x/{\mathrm{Co}}_{90}{\mathrm{Fe}}_{10}$ bottom-pinned bilayers prepared by ion beam deposition. The Pt content in the film was varied 6 at. % with x between 46 and 52 at. % by changing the angle of substrate relative to the target in a range of 40°. Exchange coupling for a ${\mathrm{Mn}}_{\text{100−x}}{\mathrm{Pt}}_x\text{(20\hspace{0.17em}}\mathrm{nm}\mathrm{)/}{\mathrm{Co}}_{90}{\mathrm{Fe}}_{10}\text{(5\hspace{0.17em}}\mathrm{nm})$ bilayer was found to be maximum ${\mathrm{(J}}_{\mathrm{ex}}\text{=0.34\hspace{0.17em}}{\mathrm{erg/cm}}^2)$ at a composition with $\text{x=50\hspace{0.17em}}\mathrm{at.}\mathrm{ \%.}$ Structure and magnetic properties of the bilayers deposited on Ta, Ta/Ru, and ${\mathrm{Ta/Ni}}_{81}{\mathrm{Fe}}_{19}$ seed layers were studied by vibrating sample magnetometry, x-ray diffraction, Rutherford backscattering spectroscopy, and atomic force microscopy. Exchange bias and coercive field can be tuned as functions of the seed layer. The effect of different annealing conditions on exchange bias is discussed to improve thermal stability of the bilayers. Maximum exchange coupling is obtained at an annealing temperature $T_A\text{⩾280\hspace{0.05em}°}\mathrm{C},$ while the blocking temperature $T_B$ keeps increasing with annealing up to $T_A\text{=420\hspace{0.05em}°}\mathrm{C}.$