Transport Processes in Magnetosolidmechanics-Adiabatic Conditions

1969 ◽  
Vol 36 (1) ◽  
pp. 107-112
Author(s):  
O. A. Arnas ◽  
G. T. Craig
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
Applied Magnetic Field ◽  
Irreversible Thermodynamics ◽  
Transport Processes ◽  
One Dimensional ◽  
Adiabatic Conditions ◽  
Basic Concepts ◽  
General Relations ◽  
State Case

General phenomenological relations describing the interactions between an externally applied magnetic field and thermal and electrical gradients in a solid are formulated from basic concepts of irreversible thermodynamics. Galvanomagnetic and thermomagnetic effects are defined under adiabatic conditions and the results obtained are compared with previous analyses under isothermal conditions. The general relations are applied to a one-dimensional steady-state case.

Transport Processes in Magnetosolidmechanics

1966 ◽  
Vol 33 (4) ◽  
pp. 770-776 ◽  
Author(s):  
M. R. El-Saden ◽  
O. A. Arnas
Keyword(s):  
Three Dimensional ◽  
Second Law Of Thermodynamics ◽  
Irreversible Thermodynamics ◽  
Transport Processes ◽  
Governing Equations ◽  
Electrical Currents ◽  
One Dimensional ◽  
Current Densities ◽  
Galvanomagnetic Effects ◽  
State Case

Consideration is given to the problem of a solid conducting heat and electrical currents in the presence of externally applied magnetic fields. Interactions due to the thermoelectric, thermomagnetic, and galvanomagnetic effects are taken into consideration. The general three-dimensional governing equations are established. The generalized Ohm’s law and Fourier’s law of heat conduction as formulated by the methods of nonequilibrium (irreversible) thermodynamics are employed. The governing equations are used for the analysis of a one-dimensional steady-state case, assuming constant thermophysical properties. The variations of temperature, electric field, magnetic field, and electric and thermal current densities are presented analytically and graphically. The second law of thermodynamics imposes certain limitations on the validity of the results. These limitations are discussed in detail.

Magnetic field dependent steady-state shear response of Fe3O4 micro-octahedron based magnetorheological fluids

2018 ◽  
Vol 20 (30) ◽  
pp. 20247-20256 ◽  
Author(s):  
A. V. Anupama ◽  
V. B. Khopkar ◽  
V. Kumaran ◽  
B. Sahoo
Keyword(s):  
Magnetic Field ◽  
Steady State ◽  
Yield Stress ◽  
Applied Magnetic Field ◽  
Rheological Behaviour ◽  
Magnetorheological Fluids ◽  
Shear Response ◽  
Field Dependent ◽  
Dynamic Yield ◽  
Magneto Rheological

The magneto-rheological behaviour of fluids containing soft-ferrimagnetic Fe3O4 micro-octahedrons (M = magnetization, τY = dynamic yield-stress and H = applied-magnetic-field).

FLUX FLOW EFFECTS IN VERY LONG JOSEPHSON JUNCTIONS

2000 ◽  
Vol 14 (25n27) ◽  
pp. 3032-3037 ◽  
Author(s):  
M. CIRILLO ◽  
V. MERLO ◽  
R. RUSSO ◽  
P. CIKMACS
Keyword(s):  
Magnetic Field ◽  
Numerical Modeling ◽  
External Magnetic Field ◽  
Applied Magnetic Field ◽  
Plasma Frequency ◽  
Flux Flow ◽  
One Dimensional ◽  
Flow Effects ◽  
Linear Slope ◽  
Josephson Plasma

We report on measurements on very long, L ≃ 30λj, NbAlOxNb underdamped in-line junctions, on which we observed displaced linear slope (DLS) generated by the application of an external magnetic field. We study the behaviour of the branches as a function of the applied magnetic field in terms of both current amplitude and voltage position. The DLS is seen to shift rigidly towards higher voltages when increasing the field, spanning a region roughly centred around the Josephson plasma frequency. We discuss the behaviour of linear branches in terms of one dimensional flux-flow along the extended side of the junction, comparing our data with the results of numerical modeling; from these calculations the non-resonant nature of DLS is very evident, in contrast to the resonant regime giving rise to Fiske steps (FS).

HOPPING CONDUCTIVITY IN ONE-DIMENSIONAL Ca3Co2O6 SINGLE CRYSTAL

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3289-3292 ◽  
Author(s):  
J. M. BROTO ◽  
B. RAQUET ◽  
H. RAKOTO ◽  
M. N. BAIBICH ◽  
S. LAMBERT ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
Applied Magnetic Field ◽  
Low Temperatures ◽  
Electronic Conductivity ◽  
Magnetic Ordering ◽  
One Dimensional ◽  
Coulomb Gap ◽  
Hopping Conductivity ◽  
Magneto Resistance

We studied the electronic conductivity of the quasi-one dimensional Ca3Co2O6 single crystal. The results evidence a VRH conductivity with temperature-induced crossover between 1D (intra-chain) and 3D transport and the opening of a Coulomb gap in the d bands. At low temperatures, an applied magnetic field induces a large negative magneto-resistance (MR) independent from the 3D magnetic ordering. Both spin-dependent hopping and field-induced suppression of the Coulomb gap are discussed.

Applied magnetic field Mössbauer studies of the quasi one-dimensional system AFeS2:A = K, Rb, Cs

1983 ◽  
Vol 36 (1-2) ◽  
pp. 171-174 ◽  
Author(s):  
D.M. Cooper ◽  
D.P.E. Dickson ◽  
P.H. Domingues ◽  
G.P. Gupta ◽  
C.E. Johnson ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Applied Magnetic Field ◽  
Dimensional System ◽  
Mössbauer Studies ◽  
One Dimensional
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