Magnetophonon resonances in quasi-one-dimensional electronic systems in tilted magnetic fields

Abstract In continuation of the work on interaction between shock waves and magnetic fields 1,2 the experiments reported here measured the atomic and electron densities in the interaction region by means of an interferometric and a spectroscopic method. The transient atomic density was also calculated using a one-dimensional theory based on the work of Johnson3 , but modified to give an improved physical model. The experimental results were compared with the theoretical predictions.

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Hamiltonian Approach to Magnetic Fields with Toroidal Surfaces

Zeitschrift für Naturforschung A ◽

10.1515/zna-1985-1001 ◽

1985 ◽

Vol 40 (10) ◽

pp. 959-967

Author(s):

A. Salat

Keyword(s):

Magnetic Field ◽

Hamiltonian System ◽

Magnetic Fields ◽

Constant Pressure ◽

Time Dependent ◽

Hamiltonian Approach ◽

One Dimensional ◽

Mhd Equilibrium ◽

Magnetic Surfaces ◽

Rotational Transform

The equivalence of magnetic field line equations to a one-dimensional time-dependent Hamiltonian system is used to construct magnetic fields with arbitrary toroidal magnetic surfaces I = const. For this purpose Hamiltonians H which together with their invariants satisfy periodicity constraints have to be known. The choice of H fixes the rotational transform η(I). Arbitrary axisymmetric fields, and nonaxisymmetric fields with constant η(I) are considered in detail.Configurations with coinciding magnetic and current density surfaces are obtained. The approach used is not well suited, however, to satisfying the additional MHD equilibrium condition of constant pressure on magnetic surfaces.

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One-particle spectral functions of the one-dimensional Fermionic Hubbard model with one fermion per site at zero and finite magnetic fields

Physical Review B ◽

10.1103/physrevb.103.195129 ◽

2021 ◽

Vol 103 (19) ◽

Author(s):

José M. P. Carmelo ◽

Tilen Čadež ◽

Pedro D. Sacramento

Keyword(s):

Magnetic Fields ◽

Hubbard Model ◽

Spectral Functions ◽

One Dimensional ◽

The One

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Theory of ultrasonic attenuation in one and two dimensional metals

Canadian Journal of Physics ◽

10.1139/p76-172 ◽

1976 ◽

Vol 54 (14) ◽

pp. 1454-1460 ◽

Cited By ~ 3

Author(s):

T. Tiedje ◽

R. R. Haering

Keyword(s):

Ultrasonic Attenuation ◽

Three Dimensional ◽

Electronic Systems ◽

Two Dimensional ◽

Temperature Dependent ◽

One Dimensional ◽

The Difference

The theory of ultrasonic attenuation in metals is extended so that it applies to quasi one and two dimensional electronic systems. It is shown that the attenuation in such systems differs significantly from the well-known results for three dimensional systems. The difference is particularly marked for one dimensional systems, for which the attenuation is shown to be strongly temperature dependent.

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