Anomalous elastic properties across the γ to α volume collapse in cerium

The origin of the volume collapse of cerium, the only elemental metal with a critical point in the solid phase, remains elusive. Here the authors show that, near the critical point, the f-electrons make cerium lose its compressive strength while maintaining a finite shear strength—which makes cerium...

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Autores principales: Magnus J. Lipp, Zs. Jenei, H. Cynn, Y. Kono, C. Park, C. Kenney-Benson, W. J. Evans
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/818346c039ae42b29cfa4d9f557db455
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Sumario:The origin of the volume collapse of cerium, the only elemental metal with a critical point in the solid phase, remains elusive. Here the authors show that, near the critical point, the f-electrons make cerium lose its compressive strength while maintaining a finite shear strength—which makes cerium unexpectedly auxetic.