dc leakage behavior and conduction mechanism in (BiFeO3)m(SrTiO3)m superlattices

Coherent phonon heat conduction in superlattices.

The control of heat conduction through the manipulation of phonons as coherent waves in solids is of fundamental interest and could also be exploited in applications, but coherent heat conduction has not been experimentally confirmed. We report the experimental observation of coherent heat conduction through the use of finite-thickness superlattices with varying numbers of periods. The measured...

Anisotropic behavior of quantum transport in graphene superlattices Coexistence of ballistic conduction with Anderson insulating regime

Jesper Goor Pedersen,1,2 Aron W. Cummings,2 and Stephan Roche2,3 1DTU Nanotech–Department of Microand Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark 2Institut Català de Nanociència i Nanotecnologia (ICN2), Campus de la UAB, Edifici ICN2, 08193 Bellaterra, Barcelona, Spain 3ICREA Institucio Catalana de Recerca i Estudis Avancats, 08010 Barcelona, Spain (Received 30...

Sliding-Mode Control of the DC-DC Ćuk Converter in Discontinuous Conduction Mode

In this paper, a novel approach for two-loop control of the DC-DC Ćuk converter in discontinuousconduction mode is presented using a sliding mode controller. The proposed controller can regulatethe output of the converter in a wide range of input voltage and load resistance. Controllerparameters are selected using PSO algorithms. In order to verify the accuracy and efficiency of thedeveloped sl...

Thermal conduction in lattice–matched superlattices of InGaAs/InAlAs

Discrete-time Averaging of Continuous Conduction Mode PWM DC-DC Converters with Feedback Considering Conduction Losses

This paper extends the results of discrete-time averaged model presented before to include the effect of feedback loop in the PWM system. This model provides the exact one-cycle-average (OCA) values of the output signal with the presence of feedback even at low switching frequency. This model also provides the accurate OCA values considering non-ideality in the switching stage components. In ad...