Phys.org September 1, 2020
Previous research had shown that when tungsten ditelluride is in a topological state, the special arrangement of atoms in its layers can produce Weyl nodes which will exhibit unique electronic properties, such as zero resistance conduction. An international team of researchers (USA – UC Berkeley, Stanford University, Lawrence Berkeley National Laboratory, Texas A&M, South Korea) made odd numbered layers slide relative to even-number layers in tungsten ditelluride. The arrangement of these atomic layers represents 0 and 1 for data storage. They made use of Berry curvature to read information out. This material platform works ideally for memory, with independent ‘write’ and ‘read’ operation. The energy consumption using this novel data storage method can be over 100 times less than the traditional method…read more. TECHNICAL ARTICLEÂ 1 , 2 , Open Access
TECHNICAL ARTICLE
Information is stored by changing the relative position of the metal layer (the gold ball in the figure) with the thickness of three atomic layers… Credit: Credit: Ella Maru Studios