Researchers at Argonne National Laboratory have developed an ultrafast electron microscopy technique that reveals how charge density waves in materials like tantalum sulfide (1T-TaS₂) respond to electrical pulses. This method allows observation of nanosecond-scale dynamics, showing that heat generated by the current, rather than the current itself, causes the waves to “melt,” and that electrical pulses induce vibrations in the material. These findings are significant for developing energy-efficient computing technologies that mimic brain-like functions.
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