An optical method for simulating nonuniform systems

Alperovich, L.; Grachev, S. A.; Gurvich, Yu. A.; Litvak-Gorskaya, L. B.; Melnikov, A. P.; Chaikovskii, I. A.

doi:10.1134/1.567313

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…The type of behaviour predicted in the preceding theoretical discussion has been confirmed in experiments with semiconductor films in strong magnetic fields [27]. Essentially, the idea was to create, in a homogeneous semiconductor, a stochastic distribution of current carriers n(r) by an illumination through a special masking film in which different sectors have different transparency.…”

Section: Experimental Laboratory Corroborationmentioning

confidence: 66%

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On the effective conductivity of the magnetized bounded partially ionized plasma with random irregularities

Alperovich

Chaikovsky

1999

Plasma Phys. Control. Fusion

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Abstract. The effective conductivity σ eff of a magnetized plasma with random irregularities has been studied theoretically. The main aim of this research is to construct a general theory valid to unbounded (closed Hall circuit) as well as to bounded plasma systems (opened Hall circuit) with one kind of current carrier. Our results reveal essential differences in behaviour of σ eff in these cases.The behaviour σ eff following from the theoretical considerations has been confirmed in experiments on thin non-homogeneous plates of crystal p-Si in crossed electric and magnetic fields (from 0 to 15 kGs) placed in liquid He.In the case of an open Hall circuit, σ eff differs only slightly from the average σ in the whole range of the magnetic fields. In contrast, σ eff may be higher than σ for a closed Hall circuit when the magnetization parameter is greater than 10.

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Section: Experimental Laboratory Corroborationmentioning

confidence: 66%

“…In the appendix we show a formal solution, the procedure reducing to an expansion of fluctuating variables in the Fourier series. Substitution of the series into (27) …”

Section: Stochastic Inhomogeneities and The Effective Conductivitymentioning

confidence: 99%

On the effective conductivity of the magnetized bounded partially ionized plasma with random irregularities

Alperovich

Chaikovsky

1999

Plasma Phys. Control. Fusion

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“…18 Nonuniform illumination of homogeneous semiconductors was used to create an inhomogeneous concentration of n(r) carriers and in that way to model transport processes in inhomogeneous materials. One of the possible ways is to illuminate a thin semiconductor plate through a special masking film in which different sectors have different transparency.…”

Section: Testing the Methods In A Model Experiment: Discussion Ofmentioning

confidence: 99%

A method for determining microinhomogeneities in semiconductors

Chaikovsky

Alperovich

1998

Journal of Applied Physics

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Articles you may be interested inGate controlled magnetoresistance in a silicon metal-oxide-semiconductor field-effect-transistor Appl. Phys. Lett. 97, 082106 (2010); 10.1063/1.3475771 Weak localization and correlation effects in thin-film degenerate n -type silicon Strain compensation in boron-indium coimplanted laser thermal processed silicon J. Appl. Phys. 97, 093525 (2005); 10.1063/1.1891282Impedance analysis: A powerful method for the determination of the doping concentration and built-in potential of nonideal semiconductor p n diodes A method is suggested for determining random irregularities in semiconductors. The method is based on the anomalous sensitivity of the effective electrical conductivity of semiconductors with weak random irregularities to an applied strong magnetic field. The primary advantage of this method is the possibility to control the sensitivity of measurements of small values of concentration of random weak inhomogeneities changing an external magnetic field. Preliminary results are presented here of experiments with Si:B thin layers at He temperatures under a broad range of magnetic fields ͑0-30 kOe͒. The experimentally determined measure of the sample inhomogeneity was found to be close to the theoretical predicted value.

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The effect of local irregularities on large-scale ionospheric currents

Alperovich

1998

Advances in Space Research

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An optical method for simulating nonuniform systems

Cited by 5 publications

References 2 publications

On the effective conductivity of the magnetized bounded partially ionized plasma with random irregularities

On the effective conductivity of the magnetized bounded partially ionized plasma with random irregularities

A method for determining microinhomogeneities in semiconductors

The effect of local irregularities on large-scale ionospheric currents

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