Superfluid He3 in planar aerogel
| Autor: | A. N. Yudin, A. Y. Mikheev, M. S. Kutuzov, Vladimir V. Dmitriev, Victor N. Morozov, A. A. Soldatov |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Condensed matter physics Condensed Matter::Other Aerogel 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter::Disordered Systems and Neural Networks 01 natural sciences Superfluidity Paramagnetism Planar Pairing Phase (matter) 0103 physical sciences 010306 general physics 0210 nano-technology Anisotropy Spin (physics) |
| Zdroj: | Physical Review B. 102 |
| ISSN: | 2469-9969 2469-9950 |
| Popis: | We report results of experiments with liquid $^{3}\mathrm{He}$ confined in a high-porosity anisotropic nanostructure which we call planar aerogel. This aerogel consists of nanofibers (with diameters $\ensuremath{\sim}10$ nm) which are randomly oriented in the plane normal to the specific axis. We used two samples of planar aerogel prepared using different techniques. We have found that on cooling from the normal phase of $^{3}\mathrm{He}$ the superfluid transition in both samples occurs into an equal spin pairing superfluid phase. NMR properties of this phase qualitatively agree with the properties of the superfluid A phase in the anisotropic Larkin-Imry-Ma state. We have observed differences between results obtained in the presence and absence of solid paramagnetic $^{3}\mathrm{He}$ on the aerogel strands. We propose that these differences may be due, at least in part, to a magnetic scattering channel, which appears in the presence of solid paramagnetic $^{3}\mathrm{He}$. |
| Databáze: | OpenAIRE |
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