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The phase diagram obtained for Nd0.5Ca0.5-ySryMnO3 from the temperature dependent magnetization and electron spin resonance measurements are presented in this paper. It is found from magnetization measurements that y=0.25 is a critical point where a magnetic transformation occurs, accompanied by a nonmonotonic variation in the c lattice parameter. Below a certain transition temperature, compounds with y<0.25 exhibit charge ordering and those with y≥0.25 show ferromagnetic ordering. An antiferromagnetic transition occurs for y=0 at still lower temperatures whereas a phase separation into antiferromagnetically and ferromagnetically ordered states occurs for 00. [ABSTRACT FROM AUTHOR]

Develops a high-temperature X-ray-diffractometer stage specifically designed for low-angle measurements of multilayers. Combination of low-angle X-ray diffraction measurements of multilayers with in situ annealing; Thermal-expansion coefficient of a metallic multilayered system; Changes in the structure W/Cu multilayers.

We derive a spin-diffusion length at 4.2 K in sputtered Au, l[SUBsf,SUPAu] = 35[SUB-5,SUP+65] nm, spin-memory-loss at Au/Cu interfaces, δ[SUBAu/Cu] = 0.13[SUB-0.02,SUP+0.08], and Au/Cu interface specific resistance, 2AR[SUBAu/Cu] = 0.35[SUB-0.05,SUP+0.10] fΩ m[SUP2]. We also show that exchange biased spin valves with Au sandwiched between Co layers produce changes in specific resistance, A Δ R, comparable to those for Cu and Ag. [ABSTRACT FROM AUTHOR]

The phase diagram obtained for Nd0.5Ca0.5-ySryMnO3 from the temperature dependent magnetization and electron spin resonance measurements are presented in this paper. It is found from magnetization measurements that y=0.25 is a critical point where a magnetic transformation occurs, accompanied by a nonmonotonic variation in the c lattice parameter. Below a certain transition temperature, compounds with y<0.25 exhibit charge ordering and those with y≥0.25 show ferromagnetic ordering. An antiferromagnetic transition occurs for y=0 at still lower temperatures whereas a phase separation into antiferromagnetically and ferromagnetically ordered states occurs for 00. [ABSTRACT FROM AUTHOR]