Grain boundaries in graphene do not affect spin transport

Researchers from the ICN2 Theoretical and Computational Nanoscience Group as well as the Université catholique de Louvain have used numerical simulations to show that spin diffusion length is independent of grain size. The ...

Lead halide perovskites are not ferroelectric

In a solar cell, when the sunlight impacts the material, a charge is generated. Specifically, this charge corresponds to an electron-hole pair, where an electron is excited to the conduction band, leaving a hole in the valence ...

Magnetite nanowires with sharp insulating transition

Magnetite (Fe3O4) is best known as a magnetic iron ore, and is the source of lodestone. It also has potential as a high-temperature resistor in electronics. In new research led by Osaka University, published in Nano Letters, ...

The engineering work of ants can influence paleoclimatic studies

Ants of the species Messor barbarus modify the grain size and mineralogical composition of the soils they inhabit, influencing the results obtained in palaeoclimatic and palaeoenvironmental studies, according to research ...

Unmasking the properties of 2-D materials

It is now possible to grow large-area ultrathin sheets of molybdenum disulfide, a two-dimensional (2D) material promising the next generation of electronic and optoelectronic devices, thanks to a new twist on a standard method ...

Solar cells get growth boost

Researchers at the Okinawa Institute of Science and Technology Graduate University's (OIST) Energy Materials and Surface Sciences Unit have found that growing a type of film used to manufacture solar cells in ambient air ...

Acoustic emissions unveil internal motion in granular materials

When confronted with a heavy load or deformed by stress, the individual particles in a granular material will sometimes reorganize to a more stable arrangement. At small scales these reorganizations are little more than the ...

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