Acoustic transparency of layered conductors

Galbova, O.; Ivanovski, G.; Kirichenko, O. V.; Peschansky, V. G.

doi:10.1063/1.593344

Cited by 5 publications

(3 citation statements)

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“…If an electron drifts along the sound wavevector (for instance, the sound wave propagates along the y-axis) the sound decrement reduces in (klη) 2 times for r/l ≪ krη ≪ 1 [47]. The solution of the kinetic equation in this case takes the form…”

Section: 33)mentioning

confidence: 99%

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Electron phenomena in layered conductors

Kirichenko¹,

Kolesnichenko²,

Peschansky³

2010

Preprint

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The quasi-two-dimensional nature of the charge carriers energy spectrum in layered conductors leads to specific effects in an external magnetic field. The magnetoresistance of layered conductors in a wide range of strong magnetic fields directed in the plane of the layers can increase proportionally to a magnetic field value. The electromagnetic impedance and the sound attenuation rate depend essentially on the polarization of normal to the layers. Propagation of electromagnetic and acoustic waves in these conductors involves virtually all charge carriers in the transfer of acoustic pulses and electromagnetic field spikes to the bulk of the conductor. The orbits of Fermi electrons in a magnetic field are virtually indistinguishable, which allows the inclusion of large number of conduction electrons in the formation of peculiar oscillatory and resonant effects which are absent in the case of ordinary metals. Investigation of these effects introduce the possibilities for detailed study of the dissipative processes in electron systems of layered conductors and the charge carriers energy spectrum.

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Section: 33)mentioning

confidence: 99%

“…We consider the propagation of acoustic waves and co-moving electromagnetic waves with reference to the electron-electron interaction [52][53][54]. Charge carriers are supposed to form, not a Fermi-gas but a Fermi-liquid in which the correlation effects are essential.…”

Section: Fermi-liquid Effectsmentioning

confidence: 99%

Electron phenomena in layered conductors

Kirichenko¹,

Kolesnichenko²,

Peschansky³

2010

Preprint

Self Cite

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“…In a strong magnetic field H ( τ 1; τ is the charge-carrier relaxation time), all 0953-8984/98/5011765+08$19.50 c 1998 IOP Publishing Ltd of the kinetic and thermodynamic characteristics of conductors are very sensitive to the form of the electron energy spectrum. A series of effects exist which are typical for layered conductors with metal-type conductivity, but non-existent for ordinary metals [1][2][3][4][5][6]. Among these effects, arising from the quasi-two-dimensional nature of the charge-carrier energy spectrum, is the high acoustic transparency of a conductor in the absence of charge-carrier drift along the sound wavevector k in the range of the magnetic field for which 1 kr kl.…”

mentioning

confidence: 99%

Giant oscillations of the rate of sound attenuation in layered conductors placed in a magnetic field

Ivanovski¹,

Kirichenko

Krstovska³

et al. 1998

J. Phys.: Condens. Matter

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The propagation of sound waves in layered conductors with quasi-two-dimensional electron energy spectra is studied theoretically. It is shown that in a magnetic field H the rate of sound attenuation G oscillates with a great amplitude as a function of and of the angle between H and the sound wavevector k, if the charge carriers are capable of drifting along k, and the radius of curvature of their trajectories r is much less than the electron mean free path l but significantly exceeds the wavelength of sound . The diameter of the Fermi surface in the direction orthogonal to the vectors k and H can be determined to a high degree of accuracy from the measured period of the oscillations.

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On the propagation of acoustic waves in quasi-two-dimensional conductors in a quantizing magnetic field

Kirichenko

Peschansky

Galbova³

et al. 2003

Low Temperature Physics

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The damping of acoustic waves propagating perpendicular to the layers of a quasi-two-dimensional conductor is analyzed for the case of low temperatures, at which the energy quantization of the conduction electrons leads to an oscillatory dependence of the acoustic damping coefficient on the inverse magnetic field. The acoustic damping decrement is found for different orientations of the magnetic field with respect to the layers. It is shown that that a layered conductor is most transparent for an acoustic wave in the case when the magnetic field is perpendicular to the layers.

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Acoustic transparency of layered conductors

Cited by 5 publications

References 0 publications

Electron phenomena in layered conductors

Electron phenomena in layered conductors

Giant oscillations of the rate of sound attenuation in layered conductors placed in a magnetic field

On the propagation of acoustic waves in quasi-two-dimensional conductors in a quantizing magnetic field

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