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Nanophysics Oct 17, 2019

Double layer of graphene helps to control spin currents

In order to make transistors that operate using the spin of electrons rather than their charge, it is necessary to find a way of switching spin currents on and off. Furthermore, the lifetime of the spins should at least be ...

Quantum Âé¶¹ÒùÔºics Sep 27, 2019

Observations of Rydberg exciton polaritons and their condensate in a perovskite cavity

In quantum physics, Rydberg excitons with high principal value can exhibit strong dipole-dipole interactions. However, polaritons (quasiparticles) with an excitonic constituent in an excited state, known as Rydberg exciton ...

Materials Science Sep 26, 2019

Electrostatically controlled surface boundary conditions in nematic liquid crystals and colloids

Liquid crystals differ from isotropic fluids (fluids with similar properties in different directions) to exhibit highly anisotropic (varying properties in different directions) interactions with surfaces. In a new report ...

Biochemistry Sep 23, 2019

Probes shed new light on Alzheimer's cause

Rice University researchers have found a way to track the formation of soluble amyloid beta peptide aggregates implicated in the onset of Alzheimer's disease.

General Âé¶¹ÒùÔºics Sep 18, 2019

Ultrafast optical field-ionized gases: A laboratory platform to study kinetic plasma instabilities

Kinetic instabilities commonly arise from anisotropic (different properties in different directions) electron velocity distributions within ionospheric, cosmic and terrestrial plasmas. But only a handful of experiments have ...

General Âé¶¹ÒùÔºics Aug 30, 2019

New study presents multiferroicity in atomic Van der Waals heterostructures

Multiferroics are defined as materials that simultaneously exhibit ferromagnetism and ferroelectricity. Such properties make those materials promising building blocks of novel multifunctional materials for a variety of applications. ...

Nanomaterials Aug 26, 2019

Can't get thinner than this: synthesis of atomically flat boron sheets

Since its rediscovery and characterization in 2004, graphene has been the focus of countless research efforts across multiple fields. It is a versatile material consisting of a two-dimensional (2-D) carbon network, a thin ...

General Âé¶¹ÒùÔºics Aug 13, 2019

Scientists discover potential path to improving samarium-cobalt magnets

Scientists have discovered a potential tool to enhance magnetization and magnetic anisotropy, making it possible to improve the performance of samarium-cobalt magnets.

General Âé¶¹ÒùÔºics Aug 1, 2019

Slip layer dynamics reveal why some fluids flow faster than expected

Whether it is oil gushing through pipelines or blood circulating through arteries, how liquids flow through tubes is perhaps the most fundamental problem in hydrodynamics. The challenge is to maximize transport efficiency ...

Cell & Microbiology Jul 15, 2019

Ribosome standby: How bacteria translate proteins from structurally blocked mRNAs

Bacterial ribosomes need a single-stranded ribosome binding site (RBS) to initiate protein synthesis, whereas stable RNA structure blocks initiation. Paradoxically, structured mRNAs can nevertheless be efficiently translated. ...

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