Evidence for martensitic fcc-bcc transition of thin Fe films on Cu(100).
Evidence for martensitic fcc-bcc transition of thin Fe films on Cu(100).
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DOI：
10.1103/physrevb.48.18344
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发表时间：
1993-12
期刊：
影响因子：
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通讯作者：
Kalki;Chambliss;Johnson;Wilson;Chiang
中科院分区：
文献类型：
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作者：
Kalki;Chambliss;Johnson;Wilson;Chiang
我们报告了室温下在 Cu(100) 上生长的 Fe 薄膜的马氏体面心立方-面心立方相变，厚度范围为 10 至 20 个单层。 bcc(110) 晶粒沿 (011) fcc ∥[111] bcc 高度伸长，并表现出沿 [001]b bcc 阶梯状的特征岛状生长。 STM 形貌证明了薄膜主体中的马氏体（即突然、集体、非扩散）转变，包括晶界处台阶的行为以及由 fcc-bcc 界面产生的倾斜表面的存在
We report on the martensitic fcc-bcc phase transformation for Fe films grown at room temperature on Cu(100) in a thickness range from 10 to 20 monolayers. bcc(110) grains are highly elongated along (011) fcc ∥[111] bcc and exhibit characteristic island growth with steps along [001]b bcc . The martensitic (i.e., sudden, collective, nondiffusive) transformation in the bulk of the film is demonstrated by STM topography, including the behavior of steps at grain boundaries and the presence of tilted surfaces arising from fcc-bcc interfaces