Indexed by: Journal paper

First Author: Qiang He

Journal: Applied Physics Letters

Included Journals: SCI

Affiliation of Author(s): 光学与电子信息学院

Discipline: Engineering

First-Level Discipline: Computer Science and Technology

Document Type: J

DOI number: 10.1063/1.4880936

Date of Publication: 2014-07-22

Abstract: The controllable heat behavior, including heat generation and dissipation, is one of the most important physical problems of nanoscale phase-change memory (PCM). A method based on heat accumulation effect to control heat behavior by synthetically modulating the three parameters of applied double pulses is proposed to achieve any expected amorphization ratio. A compact model of nanoscale PCM cells is used to simulate the thermal behavior and amorphization ratio under the condition of single parameter and multi-parameter change of applied double pulses. The results are in good agreement with the experimental results. Repeated experiments also prove the feasibility of continuous controllable amorphization ratio of nanoscale phase-change materials.