Distortions and stabilization of simple-cubic calcium at high pressure and low temperature

Ca-III, the first superconducting calcium phase under pressure, was identified as simple-cubic (sc) by previous X-ray diffraction (XRD) experiments. In contrast, all previous theoretical calculations showed that sc had a higher enthalpy than many proposed structures and had an imaginary (unstable) p...

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Main Authors: Mao, Wendy L., Wang, Lin, Ding, Yang, Yang, Wenge, Liu, Wenjun, Kim, Duck Young, Luo, Wei, Ahuja, Rajeev, Meng, Yue, Sinogeikin, Stas, Shu, Jinfu, Mao, Ho-kwang
Format: Artigo
Jezik:Inglês
Izdano: National Academy of Sciences 2010
Teme:
Physical Sciences
Online dostop:https://ncbi.nlm.nih.gov/pmc/articles/PMC2890435/
https://ncbi.nlm.nih.gov/pubmed/20479266
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.1005279107
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