Home page of
Haruo Kojima
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Home page of Haruo Kojima |
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| Position: | Faculty |
| Research group: | Condensed Matter Experiment |
| Research interests: | Kojima Group |
| Email address: | Kojima@physics.rutgers.edu |
| Telephone: | (732) 445-3875, 5-2252 lab |
| Dept. Fax: | (732) 445-4343 |
| Office: | Serin W120 |
| Mailing address: | Haruo Kojima Department of Physics and Astronomy Rutgers, The State University of New Jersey 136 Frelinghuysen Road Piscataway, NJ 08854-8019 USA |
Superfluid He-3, which occurs below 2.6 mK, has a rich variety of phenomena whose analogs can be found in superfluid He-4,nematic liquid crystals, antiferromagnets, and ferromagnets. We have been carrying out a number of experiments to measure magnetic, thermodynamic, and hydrodynamic properties of superfluidHe-3. Our most recent research has been with the superfluid He-3 A-1 phase in magnetic fields as high as 15 teals. A special nuclear demagnetization apparatus has been built to cool liquid He-3 down to 1.5 mK in such high magnetic fields. A unique hybrid form of second sound, called spin-entropy wave exists in A-1 phase. The velocity and attenuation of the spin-entropy are being measured to extract the superfluid fraction, the spin diffusivity, and the thermal conductivity. Under suitable conditions, the spin-entropy wave can be used to study liquid crystal-like anisotropy effects. Textural transitions induced by superfluid flows are being studied using the spin-entropy wave. Preliminary work on sonoluminescence in water is being carried out. Measurements spin-lattice relaxation time and susceptibility of a non-Fermi liquid system,CeCu_6-xAux are also being carried out using NQR and SQUID techniques.
Revised July 20, 2001