期刊论文详细信息
Temperature dependence of shot noise in double barrier magnetic tunnel junctions | |
Article | |
关键词: ROOM-TEMPERATURE; LARGE MAGNETORESISTANCE; | |
DOI : 10.1103/PhysRevB.97.104412 | |
来源: SCIE |
【 摘 要 】
Shot noise reveals spin dependent transport properties in a magnetic tunnel junction. We report measurement of shot noise in CoFeB/MgO/CoFeB/MgO/CoFeB double barrier magnetic tunnel junctions, which shows a strong temperature dependence. The Fano factor used to characterize shot noise increases with decreasing temperature. A sequential tunneling model can be used to account for these results, in which a larger Fano factor results from larger spin relaxation length at lower temperatures.
【 授权许可】
Free