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首页> 外文期刊>Journal of surface investigation: x-ray, synchrotron and neutron techniques >X-Ray Photoelectron Studies of Changes in the Electronic Structure upon Phase Transitions in Co–Ni and Co–Fe Alloys
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X-Ray Photoelectron Studies of Changes in the Electronic Structure upon Phase Transitions in Co–Ni and Co–Fe Alloys

机译：X射线光电子研究Co-Ni和Co-Fe合金中相变后电子结构的变化

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摘要

The changes in the electronic structure of Co–Ni and Co–Fe systems upon phase transitions are studied. X-ray photoelectron study of the valence-band spectra and the parameters of the multiplet splitting of Co, Ni and Fe 3s spectra is carried out at different temperatures. It is established that the ordering–separation phase transition in Co–Ni alloys takes place in the temperature range of 600–700°C. As opposed to Co–Ni alloys, in the Fe–Co alloy, ordering–separation–ordering phase transitions are observed. High-temperature ordering of the Fe_(50)Co_(50) alloy is observed above 1200°C. The transition from ordering to separation is shown to lead to changes in the d electron spectra of the valence band and in the parameters of the multiplet splitting of the 3s spectra.
机译：研究了相变过程中Co-Ni和Co-Fe系统电子结构的变化。在不同温度下，对价带谱和Co，Ni和Fe 3s谱的多重分裂参数进行X射线光电子研究。可以确定的是，Co-Ni合金中的有序-分离相变发生在600-700°C的温度范围内。与Co-Ni合金相反，在Fe-Co合金中，观察到有序-分离-有序相变。在1200°C以上观察到Fe_（50）Co_（50）合金的高温有序化。从有序到分离的转变被显示为导致价带的d电子光谱以及3s谱的多重分裂参数的变化。

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