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We report on the first high electron density SrTiO3/GdTiO3 (STO/GTO) heterostructure field effect transistors (HFETs). Recently, there has been great interest in high density 2DEGs formed at the interfaces between perovskite oxides [1]. In particular, the STO/GTO interface has been shown to have a sheet charge density of 3 × 1014 cm−2, equivalent to 0.5 e− per unit cell [2], due to the polar discontinuity...
A new technique to sequence single strand DNA by translocation through a synthetic graphene nanopore is discussed. An amplifier connecting the two sides of the nanopore produces a feedback signal sufficient for dielectrophoresis of ssDNA through the nanopore. The feedback signal also amplifies the size and electrical differences in the DNA bases as they translocate through the nanopore. Focused electron...
PTCR thermistors are thermally sensitive resistors that show positive temperature coefficient of resistance and are good candidates for applications as self-regulating heating elements and thermal control switches. For these applications, the current–time behavior of thermistors is of primary importance. In this work, heat transfer models were developed to simulate the electrothermal behavior of BaTiO...
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