Journal ArticleDOI
Bismuth in a Strong Magnetic Field: a Gas-Liquid Type Phase Transition and Sound Attenuation
TLDR
In this paper, the effects of the electron-hole correlation on the gas-liquid type phase transition and sound attenuation of a system in a strong magnetic field were investigated in a generalized random phase approximation.Abstract:
The effects of the electron-hole correlation on the gas-liquid type phase transition and sound attenuation of electron-hole system in a strong magnetic field are investigated in a generalized random phase approximation. It is shown that the effects of the correlation amount to changing the effective interaction constant in a previous theory [D. Yoshioka: J. Phys. Soc. Jpn. 44 (1978) 363]. Similar calculation of sound attenuation by Kuramoto [Z. Phys. B 35 (1979) 233] is criticized to be inconsistent in the treatment of the Coulomb interaction.read more
Citations
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Journal ArticleDOI
Ultrasound Attenuation and Quantum Oscillations in BiSb Alloys
TL;DR: In this paper, the attenuation of ultrasound is measured in Bi100−xSbx alloys (x = 0, 1.2, 4, 4.5, 5, 6.4), where the wave vector and the magnetic field are parallel to the trigonal axis of the sample.
Journal ArticleDOI
Dynamical effects of electron-hole correlation and giant quantum attenuation of ultrasound in semimetals
TL;DR: In this paper, a theoretical analysis is presented which emphasizes the importance of dynamical effects of the electron-hole correlation on the real part of the relevant response function which gives changes in sound velocity.
Journal ArticleDOI
Anomalous frequency dependence of giant quantum attenuation in Bismuth below 1 K
TL;DR: In this article, the amplitude and frequency dependences of the peak attenuation due to these two levels are expressed by αp ∝ T-μων with μ ⋍ 1 and ν ⋈ 1 at T > 1 K.
Journal ArticleDOI
Gas-liquid type phase transition in semiivietals at low temperatures and high magnetic fields
TL;DR: In this article, anomalous anomalies have been found in the temperature and frequency dependences of the attenuation coefficient of sound waves in bismuth, antimony and pyrolytic graphite at low temperatures and high magnetic fields.
References
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Journal ArticleDOI
Electron Correlations at Metallic Densities
TL;DR: In this paper, an improved expression of the dielectric function is given, which includes explicitly, in an approximate way, the short-range correlations arising from both Coulomb and exchange effects by being a functional of the structure factor.
Journal ArticleDOI
Electron Correlations at Metallic Densities. V
Priya Vashishta,K. S. Singwi +1 more
TL;DR: In this paper, a modification of an earlier theory of Singwi et al of electron correlations at metallic densities is presented, which allows for the change of the pair correlation function in an external weak field via the density derivative of the equilibrium pair correlation functions.
Journal ArticleDOI
A New Phenomenon is Sound Attenuation in Bismuth under Very Strong Magnetic Fields
Shoichi Mase,Takeshi Sakai +1 more
TL;DR: In this article, the anomalous part of the attenuation at the resonance field position, Δ α, obeys the law Δ α= A (T / T c -1) -(0.49±0.06) in a limited region of reduced temperature (T/T c - 1).
Journal ArticleDOI
Anomalous behavior of giant quantum attenuation in bismuth
Journal ArticleDOI
Further Study" of the Occurrence of the Excitonic Phase Transition in Bismuth under Strong Magnetic Fields by Ultrasonic Attenuation
TL;DR: In this paper, the anomalous temperature dependence of the giant quantum attenuation of longitudinal sound waves in bismuth under strong magnetic fields was extended down to 1.06 K, and further evidence for the occurrence of the excitonic phase transition was obtained.
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