In general, when you measure material properties such as optical permittivity, your measurement doesn’t depend on the direction in which you make it. However, recent research has shown that this is ...
Certain two-dimensional (2D) van der Waals-bonded bilayers (e.g., WTe₂ and h-BN) exhibit “sliding ferroelectricity (SF),” where electric polarization arises from specific stacking configurations ...
Ultrathin bismuthene islands on graphite slide freely in one direction and pause unpredictably, revealing new ways to control friction in nanoscale materials. (Nanowerk Spotlight) Friction at small ...
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