Yet another example of the high quality of h-BN dielectrics that have been engineered and provided by Kenji Watanabe and Takashi Taniguchi from the National Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, 17 Tsukuba 305-0044, Japan.
Roy’s paper “Phase dependent microwave response of a graphene Josephson junction” is now out. See Phys. Rev. Research 4, 013198 (2022). Roy shows that one can obtain both the resistive the resistive loss and the critical current from GHz reflectometry measurements.
Today, our paper on strained induced scalar potential in graphene appeared, see: publication. When graphene is uniaxially strained, the unit cell is elongated which leads to a chnage in the binding energy. This change has the same effect as an electrostatic
Mehdi Ramezani’s paper entitled Superconducting Contacts to a Monolayer Semiconductor just appeared today (24th of June 2021) in Nano Letters. See: link-to-paper Schottky barriers in semiconductors usually prohibit achieving transparent enough contacts required to induce superconductivity in the semiconductor by the
Graphene, the first truly two-dimensional material isolated, is never perfectly flat. Even when it is sandwiched between other atomically flat crystals, it still slightly ripples. These out-of-plane corrugations, the deformation of the graphene layer into the third dimension, have profound
There are various ways to measure the magnetic field, for example, by the force exerted on a ferromagnetic needle, by the voltage measured at the two ends of a wire wound into a coil or through the Hall effect that
Our paper titled “A Double Quantum Dot Spin Valve” has appeared in Communications Physics. In this work, we reported a new approach for spin injection and spin detection in a semiconducting InAs NW device. We used two weakly-coupled semiconductor quantum dots (QDs)
From June 22nd till the 26th we had the installation of our new low temperature scanning confocal Raman microscope from attocube. It is a marriage of attocube attoDRY 2100 with the attoCFM/Raman and a WITEC spectrometer setup. We had the
Magnetic field independent sub-gap states in hybrid Rashba nanowires Most reports on the highly visible topic of Majorana Fermions in solid state systems are based on the observation of magnetic field independent transport resonances at zero bias, so-called zero-bias peaks.
One-dimensional edge transport in few-layer WTe2 In 2016 the Nobel Prize in Physics was given to three theorists who introduced a new state of matter, topological matter. A subclass is defined by topological insulators (TIs), which are crystals that are