We report on the first observation of diffusion anisotropy of gaseous helium-3 entrapped in ordered aerogels at 4.2 K. The origins of He diffusion anisotropy in aerogels of different porosity are discussed.
View Article and Find Full Text PDFThe results ofHe gas pulsed NMR spin-lattice relaxation study in high-porosity (84.9%-97.9%) nematically ordered AlOaerogels at 1.
View Article and Find Full Text PDFJ Phys Condens Matter
February 2020
We report on the first observation of He diffusion anisotropy in He-He liquid mixture confined in ordered aerogels at 1.5-4.2 K temperatures.
View Article and Find Full Text PDFShames et al. made a comment on our article (DOI: 10.1039/C7CP05898E) stating that their experience in EPR studies of detonation nanodiamonds suggests the existence of two main types of paramagnetic center in detonation nanodiamonds which questions our results.
View Article and Find Full Text PDFIn this article a method to assess the location of paramagnetic centers in nanodiamonds was proposed. The nuclear magnetic relaxation of adsorbed He used as a probe in this method was studied at temperatures of 1.5-4.
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