YbRhSn: a valence fluctuating system with ultra-low thermal conductivity.

YbRhSn crystallizes with a unique structural arrangement [space group 4/, = 9.6997(4) Å, = 13.7710(7) Å], which is related with primitive cubic YbRhSn and body-centered tetragonal (SnTb)TbRhSn types.

Graphene Magnetoresistance Control by Photoferroelectric Substrate.

Ultralow dimensionality of 2D layers magnifies their sensitivity to adjacent charges enabling even postprocessing electric control of multifunctional structures. However, functionalizing 2D layers remains an important challenge for on-demand device-property exploitation. Here we report that an electrical and even fully optical way to control and write modifications to the magnetoresistive response of CVD-deposited graphene is achievable through the electrostatics of the photoferroelectric substrate.

Single Wavelength Operating Neuromorphic Device Based on a Graphene-Ferroelectric Transistor.

As global data generation continues to rise, there is an increasing demand for revolutionary in-memory computing methodologies and efficient machine learning solutions. Despite recent progress in electrical and electro-optical simulations of machine learning devices, the all-optical nonthermal function remains challenging, with single wavelength operation still elusive. Here we report on an optical and monochromatic way of neuromorphic signal processing for brain-inspired functions, eliminating the need for electrical pulses.

Heat Capacity Function, Enthalpy of Formation and Absolute Entropy of Mg(AlH ).

In this investigation, we set out first to characterize the thermodynamics of Mg(AlH ) and secondly to use the determined data to reevaluate and update existing estimation procedures for heat capacity functions, enthalpies of formation and absolute entropies of alanates. Within this study, we report the heat capacity function of Mg(AlH ) in the temperature range from 2 K to 370 K and its enthalpy of formation and absolute entropy at 298.15 K, being  kJ mol and 133.

Superconductivity of structurally disordered YIrSn.

The structural and physical properties of YIrSn grown from Sn-flux as large single crystals are studied. YIrSn crystallizes with a unique structure [space group 3̄, = 13.7706(1) Å], which is characterized by a strong disorder.