Ab Initio Molecular-Dynamics Simulation of Neuromorphic Computing in Phase-Change Memory Materials.
作者： Jonathan M Skelton , Desmond Loke , Taehoon Lee , Stephen R Elliott , None
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摘要: We present an in silico study of the neuromorphic-computing behavior prototypical phase-change material, Ge2Sb2Te5, using ab initio molecular-dynamics simulations. Stepwise changes structural order response to temperature pulses varying length and duration are observed, a good reproduction spike-timing-dependent plasticity observed nanoelectronic synapses is demonstrated. Short above-melting lead instantaneous loss chemical order, followed by delayed partial recovery upon relaxation. also investigate link between electrical optical properties. These results pave way toward first-principles understanding physics beyond binary switching.
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