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Standing surface waves produced by second sound in superfluid 4He have been observed optically. A spectrum of 84 frequencies was obtained. The theoretical spectrum calculated by using the conventional boundary condition of zero heat transfer does not agree with the experimental spectrum. Good...
Values of % MathType!MTEF!2!1!+-% feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXafv3ySLgzGmvETj2BSbqefm0B1jxALjhiov2D% aebbfv3ySLgzGueE0jxyaibaiiYdd9qrFfea0dXdf9vqai-hEir8Ve% ea0de9qq-hbrpepeea0db9q8as0-LqLs-Jirpepeea0-as0Fb9pgea%...
An analog of the RKKY formula is derived for an anisotropic metal. Scattering of electrons by impurities is analyzed and it is proved that its only effect is the modulation of the interaction amplitude by a factor exp (−r/l
being the mean free path for electrons corresponding to the...
A generalization of our previous microscopic theory is used to derive the spin and density correlation functions for the Anderson-Brinkman-Morel (ABM) state. The coupling of the 18 fluctuation components of the order parameter due to the nuclear dipole interaction is taken into account...
Electron escape from a two-dimensional surface state on liquid helium to three-dimensional free space is studied. A thermal-activation-type temperature dependence of the escape rate is observed at 1.1>T>0.9 K for the first time. The mechanism of electron escape is discussed.
We present numerical results for the specific heat of 3He-B in the weak-coupling-plus model. We find that the full temperature dependence of the specific heat is accurately determined by the specific heat jump at T
.This provides a test of the T
expansion scheme for calculating strong...
The equilibrium concentration of superfluid turbulence on two sides of small-pore filters is studied as a function of pore size. The filter forms a common wall between two second-sound resonance cavities. The attenuation of standing waves of second sound is used to detect the turbulence which is...
The specific heat of a single crystal of the A-15-type compound V3Si in the normal, mixed, and superconducting states has been measured from 4 to 30 K in magnetic fields up to 50 kOe. The analysis has been performed in a self-consistent way based on the second-order phase transition from the...
The third-order elastic (TOE) constants of cobalt, ruthenium, and erbium have been calculated as a function of temperature using the nearest neighbor central-force model of Srinivasan and Ramji Rao, taking into account the temperature variation of the second-order elastic (SOE) constants of the...
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