Longitudinal sound velocity was measured in bcc 3He crystals at frequencies of 10, 30 and 50 MHz as a function of temperature. Above 0.4 K, the velocity always decreased with increasing temperature and no systematic dependence on frequency was observed. The result was interpreted by taking into account the contribution of vacancies to the sound velocity
The theoretical picture of liquid helium 3 which is currently accepted is due to Landau (1957 a). Ac...
Because of suggestions that at least some alum crystals may become ferroelectric at low temperatures...
18-24An expression for the sound velocity change in anharmonic BaxSr1-xTiO3 ferroelectric crystal i...
We first relate empirically the superconducting transition temperature, Tc, of the bcc d-band metals...
We first relate empirically the superconducting transition temperature, Tc, of the bcc d-band metals...
C. E. Chase (1) showed that the attenuation coefficient for sound waves in liquid helium goes throug...
We first relate empirically the superconducting transition temperature, Tc, of the bcc d-band metals...
Exploratory measurements were made to determine the attenuation of sound in liquid helium as a funct...
The velocity of propagation of longitudinal sound waves in a single crystal of potassium chrome alum...
We report the observation of the Rayleigh sound wave propagation on a gallium single crystal at freq...
We report the observation of the Rayleigh sound wave propagation on a gallium single crystal at freq...
The propagation of sound in liquid He3 was observed at a pressure of 0.32 atm and at fre~quencies o...
The temperature dependencies of the ultrasonic velocities and attenuation coefficients are studied i...
Detailed measurements have been made of the temperature dependence of the velocity of three differen...
We have studied the propagation of ballistic phonons in solid 4He and 3He using the fast-heat-pulse ...
The theoretical picture of liquid helium 3 which is currently accepted is due to Landau (1957 a). Ac...
Because of suggestions that at least some alum crystals may become ferroelectric at low temperatures...
18-24An expression for the sound velocity change in anharmonic BaxSr1-xTiO3 ferroelectric crystal i...
We first relate empirically the superconducting transition temperature, Tc, of the bcc d-band metals...
We first relate empirically the superconducting transition temperature, Tc, of the bcc d-band metals...
C. E. Chase (1) showed that the attenuation coefficient for sound waves in liquid helium goes throug...
We first relate empirically the superconducting transition temperature, Tc, of the bcc d-band metals...
Exploratory measurements were made to determine the attenuation of sound in liquid helium as a funct...
The velocity of propagation of longitudinal sound waves in a single crystal of potassium chrome alum...
We report the observation of the Rayleigh sound wave propagation on a gallium single crystal at freq...
We report the observation of the Rayleigh sound wave propagation on a gallium single crystal at freq...
The propagation of sound in liquid He3 was observed at a pressure of 0.32 atm and at fre~quencies o...
The temperature dependencies of the ultrasonic velocities and attenuation coefficients are studied i...
Detailed measurements have been made of the temperature dependence of the velocity of three differen...
We have studied the propagation of ballistic phonons in solid 4He and 3He using the fast-heat-pulse ...
The theoretical picture of liquid helium 3 which is currently accepted is due to Landau (1957 a). Ac...
Because of suggestions that at least some alum crystals may become ferroelectric at low temperatures...
18-24An expression for the sound velocity change in anharmonic BaxSr1-xTiO3 ferroelectric crystal i...
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