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We report our results of shear acoustic impedance measurements performed on superfluid 3He in 98% porosity silica aerogel. Experiments in high porosity aerogel provide unique opportunity to study the influence of disorder on a p-wave superfluid and compare the behavior with that of the well understood pure bulk. Our experiment is designed to detect acoustic signatures from both bulk liquid and liquid in aerogel. In the past, experiments on 3He in aerogel have been conducted in zero or low magnetic fields (< 1 tesla). We made measurements in magnetic fields as high as 15 tesla at 28.4 and 33.5 bars and observed a new phase in aerogel induced by magnetic fields splitting the superfluid transition into two.
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References
1. J.V. Porto and J.M. Parpia, Phys. Rev. Lett. 74, 4667 (1995).
2. D.T. Sprague et al., Phys. Rev. Lett. 75, 661 (1995).
3. K. Matsumoto et al., Phys. Rev. Lett. 79, 253–256 (1997); Errata ibid. 79, 2922 (1997).
4. E.V. Thuneberg et al., Phys. Rev. Lett. 80, 2861–2864 (1998).
5. B.I. Barker et al., Phys. Rev. Lett. 85, 2148 (2000).
6. P. Brussaard et al., Phys. Rev. Lett. 86, 4850 (2001).
7. G. Gervais et al., Phys. Rev. Lett. 87, 35701 (2001).
8. G. Gervais et al., Phys. Rev. B 66, 054528 (2002).
9. G. Baramidze and G. Kharadze, Physica B 284–288, 305 (2000).
10. J.A. Sauls and P. Sharma, Phys. Rev. B 68, 224502 (2003).
G.A. Baramidze and G.A. Kharadze, cond-mat/0307612 (2003).
12. V. Ambegaokar and N.D. Mermin, Phys. Rev. Lett. 30, 81 (1973).
13. D.D. Osheroff and P.W. Anderson, Phys. Rev. Lett. 33, 686 (1974).
14. D.C. Sagan et al., Phys. Rev. Lett. 53, 1939 (1984).
15. U.E. Israelsson et al., Phys. Rev. Lett. 53, 1943 (1984).
16. P. Remeijer et al., J. Low Temp. Phys. 111, 119 (1998).
17. I.A. Fomin, J. Low Temp. Phys. 134, 769 (2004); cond-mat/0401639 (2004).
18. Y. Lee et al., Nature 400, 431 (1999).
19. D.S. Greywall, Phys. Rev. B 33, 7520 (1986).
20. K. Yawata, Ph.D. thesis, University of Tsukuba (2001).
21. H. Fukuyama et al., Physica B 329, 1560 (2003).
22. D. Vollhardt and P. Wölfle, The Superfluid Phases of Helium Three, Taylor and Francis, London (1990).
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PACS numbers: 67.57Pq, 67.80Mg
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Choi, H., Gray, A., Vicente, C. et al. Effect of Strong Magnetic Fields on Superfluid 3He in 98% Porosity Aerogel. J Low Temp Phys 138, 107–115 (2005). https://doi.org/10.1007/s10909-005-1535-5
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DOI: https://doi.org/10.1007/s10909-005-1535-5