SOFT-X-RAY EMISSION STUDY OF THE INFLUENCE OF LI+ DOPING, IRRADIATION AND PLASTIC DEFORMATION ON CUO
SOFT-X-RAY EMISSION STUDY OF THE INFLUENCE OF LI+ DOPING, IRRADIATION AND PLASTIC DEFORMATION ON CUO
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锂掺杂、辐照和塑性变形对CuO影响的软X射线发射研究
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
R. Berger
中科院分区：
文献类型：
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作者：
D. Zatsepin;V. Galakhov;B. Gizhevskii;E. Kurmaev;V. Fedorenko;A. Samokhvalov;S. Naumov;R. Berger
利用软x射线发射光谱研究了${mathm {Li}}^{+}$掺杂、${mathm {He}}^{+}$或${mathm {He}}^{+}$电子辐照对CuO中铜离子氧$2p$带和价态的影响。在辐照和压力剪切的情况下，光谱形状的转变可以用${mathm {Cu}}_{2} mathm {O}的出现来解释。与锂的掺杂导致铜离子的形式价$3+的出现。研究还表明，锂离子的存在可以防止${mathm {Cu}}_{2} mathm {O}$相的形成，而不依赖于塑性变形值。讨论了所研究的氧化物中$ mathm {CuO}ensuremath{
rightarrow}{mathm {Cu}}_{2} mathm {O}$跃迁的原因和可能的机制。
The influence of ${mathrm{Li}}^{+}$ doping, shear under pressure, and irradiation with ${mathrm{He}}^{+}$ or electrons on the oxygen $2p$-band and valence states of copper ions in CuO was studied using soft-x-ray emission spectroscopy. In the case of irradiation and shear under pressure the transformation of the spectrum shape is explained by the appearance of ${mathrm{Cu}}_{2}mathrm{O}.$ The doping with lithium leads to the appearance of copper ions with formal valency of $3+.$ It was also established that the presence of lithium ions prevents ${mathrm{Cu}}_{2}mathrm{O}$ phase forming without a dependence on the plastic deformation value. The reasons and possible mechanisms of the $mathrm{CuO}ensuremath{
ightarrow}{mathrm{Cu}}_{2}mathrm{O}$ transitions in the oxides studied are discussed.