Phase stability in SmB$_6$
| Autor: | Crivillero, M. Victoria Ale, Rößler, Sahana, Borrmann, H., Dawczak-Dȩbicki, H., Rosa, Priscila F. S., Fisk, Z., Wirth, S. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Phys. Rev. Materials 5, 044204 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevMaterials.5.044204 |
| Popis: | We investigate flux-grown Sm-deficient Sm$_x$B$_6$ ($x < 1$) by global and local tools, including X-ray diffraction (XRD), electronic transport, and scanning tunneling microscopy (STM) and spectroscopy (STS). All these tools indicate a remarkable persistence of the SmB$_6$ local structure in the flux-grown samples even for nominal Sm concentrations as low as $x=0.75$. As a consequence, the overall electronic properties of Sm$_x$B$_6$, and particularly the surface conductance at low temperature, is only affected locally by the Sm-deficiency. Comment: 9 pages, 8 figures |
| Databáze: | arXiv |
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