نتایج جستجو برای: nuclear magnetism
تعداد نتایج: 246031 فیلتر نتایج به سال:
We modeled liquid oxygen using ab initio molecular dynamics in which both the atomic structure and the noncollinear magnetic structure evolve without constraints. The atomic structure shows preference for parallel alignment of first-neighbor molecules and is supported by an excellent agreement between theoretical and experimental nuclear structure factors. The magnetic structure shows short-ran...
The magnetic properties of molecule-based magnets are commonly rationalized by considering only a single nuclear configuration of the system under study (usually an X-ray crystal structure). Here, by means of a computational study, we compare the results obtained using such a static approach with those obtained by explicitly accounting for thermal fluctuations, and uncover the serious limitatio...
The prospect of carbon-based magnetic materials is of immense fundamental and practical importance, and information on atomic-scale features is required for a better understanding of the mechanisms leading to carbon magnetism. Here we report the first direct detection of the microscopic magnetic field produced at (13)C nuclei in a ferromagnetic carbon material by zero-field nuclear magnetic res...
Rights: © 1990 American Physical Society (APS). This is the accepted version of the following article: Hakonen, Pertti J. & Yin, S. & Lounasmaa, O. V. 1990. Nuclear magnetism in silver at positive and negative absolute temperatures in the low nanokelvin range. Physical Review Letters. Volume 64, Issue 22. 2707-2710. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.64.2707, which has been publ...
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