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New Findings on Low Dimensional Structures Described by Investigators at Nizhnii Novgorod State University (Influence of conduction via a channel of...

July 22, 2014



New Findings on Low Dimensional Structures Described by Investigators at Nizhnii Novgorod State University (Influence of conduction via a channel of an impurity delta-layer on the magneto-quantum effects in AlGaAs/GaAs/AlGaAs heterostructures)

By a News Reporter-Staff News Editor at Physics Week -- Investigators discuss new findings in Low Dimensional Structures. According to news reporting out of Nizhny Novgorod, Russia, by VerticalNews editors, research stated, "The lateral magnetoresistance of the multi-layer AlGaAs/GaAs/AlGaAs heterostructures with quantum wells and impurity delta-layers in the adjacent barriers has been studied at 4.2 K. It is shown that both the classical magnetoresistivity tensor components and the magneto-quantum effects in such structures considerably depend on the contribution to conduction from the channel with small mobility formed in the impurity delta-layer."

Our news journalists obtained a quote from the research from Nizhnii Novgorod State University, "The obtained results are analyzed within the frame of the model of electron transport via two parallel channels with different electron mobilities."

According to the news editors, the research concluded: "Based on this model the electron concentration in both the structural and delta-layer quantum wells and the dependence of the components of the magnetoresistivity tensor, including the magneto-quantum effects, on magnetic field strength have been calculated for samples with different doping level and manifest a good agreement between experimental results and calculations."

For more information on this research see: Influence of conduction via a channel of an impurity delta-layer on the magneto-quantum effects in AlGaAs/GaAs/AlGaAs heterostructures. Physica E-Low-Dimensional Systems & Nanostructures, 2014;60():31-36. Physica E-Low-Dimensional Systems & Nanostructures can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.

Our news journalists report that additional information may be obtained by contacting V.V. Vainberg, Nizhnii Novgorod State Univ, Technical Phys Res Inst, Nizhnii Novgorod 603950, Russia. Additional authors for this research include A.S. Pylypchuk, V.N. Poroshin, O.G. Sarbey, N.V. Baidus and A.A. Biryukov.

Keywords for this news article include: Russia, Eurasia, Nizhny Novgorod, Low Dimensional Structures

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Source: Physics Week


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