By using Rutherford backscattering spectroscopy, it has been found that the interdiffusion of Mn atoms, responsible for the decrease of TMR during the annealing process, is suppressed across such nano-oxide layer.
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- 通過(guò)盧瑟福背散射實(shí)驗直接觀(guān)察到產(chǎn)生這一效應的原因是該納米氧化層有效地抑制了Mn元素在退火過(guò)程中的擴散；從而使TMR值在較高的退火溫度下得以保持.
