کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1625157 | 1516426 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: 1H NMR spectra and echoes in Pd–H and Pd–Ag–H alloys 1H NMR spectra and echoes in Pd–H and Pd–Ag–H alloys](/preview/png/1625157.png)
The paper presents the experimental results of rigid-lattice proton magnetic resonance spectra and second moments in Pd–H, Pd0.90Ag0.10–H, Pd0.80Ag0.20–H, Pd0.75Ag0.25–H, and Pd0.65Ag0.35–H alloys at T = 2.4 K in a wide hydrogen concentration range. Free induction decay (FID), solid and inhomogeneous echoes were detected and interpreted. The interpretation based on dipole–dipole interaction of homogeneously distributed proton spin system is satisfactory at high hydrogen concentration, but an inhomogeneous field of paramagnetic origin (most probably coming from Fe impurities) plays the dominant role at small hydrogen content. An unexpected correlation was found between the macroscopic magnetic susceptibility and the second moment coming from the inhomogeneous internal field.
Journal: Journal of Alloys and Compounds - Volume 450, Issues 1–2, 14 February 2008, Pages 22–27