1 - 10 of 18 articles
The Fermi surface of niobium has been investigated using the de Haas-van Alphen effect. Data were taken at temperatures as low as 0.3 K and in fields as high as 130 kG. An on-line minicomputer was used to Fourier-transform the digitized signals. Many new extremal area data have been obtained,...
The high -field nonlinear NMR absorption signal of the B phase of 3He with an arbitrary orientation of the rotation axis n with respect to the field is calculated to third order in the amplitude of the perpendicular magnetization. An instability like those in ferromagnetic resonances is...
The magnetization and torque of niobium samples of different shapes rotating in a magnetic field are studied with emphasis on the behavior near the upper critical field H
c2. The observed rotational magnetization is free of hysteresis and is found to represent a good approximation to the...
The exact solution is presented of a fountain-like texture for 3He-A in a half-space, representing the simplest member of a class of textures discussed by Mermin which is singular on the surface only. The present texture may be regarded as the final stable configuration when a topologically...
We present a complete set of data describing the nucleation both of superfluidity and phase separation at container walls in liquid 3He-4He mixtures. The appearance of superfluidity and the growth of phase-separated films are measured locally at the walls. A theoretical interpretation is given,...
The behavior of the superconducting transition temperature T
of singlecrystal and polycrystalline V3Si was investigated as a function of low-fluence neutron irradiation. It is found that the initial degradation of T
is sample-dependent, some specimens showing no degradation in T
up to a...
We investigate the theory of longitudinal nuclear spin relaxation in the normal state of liquid 3He when the nuclear spins of the 3He are coupled to electronic moments in a substrate. We begin by deriving a general form for the relaxation rate in terms of spin correlation functions of the fluid...
Specific heat measurements on 2H-TaS2 single crystals have been carried out between 0.3 and 3 K using the ac calorimetry technique. An upturn in the normal-state data, obtained below 1 K in a 50-kG applied magnetic field, was observed to depend on the measuring frequency. It may be ascribed to a...
The specific heat of the orthorhombically distorted α-ThSi2-type La-Ge intermetallic compound system has been measured in the temperature range 0.07 ⩽ T⩽ 10 K. An anomalous behavior of the lattice part of the specific heat has been discovered. The specific heat data are analyzed and discussions...
The problem of dc current flow through a superconductor-normal metal interface near the critical temperature T
is considered. The equations for the Green's functions integrated with respect to the variable ζ = v(p−p0) are used to calcuate the resistance of the pure and dirty superconductor S....
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