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Effect of pressure on electric transport properties of carbon-doped EuB6 | | M. Batkova
; I. Batko
; E. Bauer
; R. T. Khan
; V. B. Filipov
; E. S. Konovalova
; | | Date: |
21 Oct 2020 | | Abstract: | We report about influence of external pressure on electrical resistivity of
EuB5.99C0.01, the compound believed to be intrinsically inhomogeneous due to
fluctuation of carbon content. Our results show that the low-temperature
resistivity maximum shifts to lower temperature with applied pressure, opposite
to the behavior reported for stoichiometric EuB6. The origin of such
qualitative difference we associate with the increasing volume fraction of the
phase that is not compatible with ferromagnetic ordering (originating in
regions with relatively higher carbon concentratio) with enhancing pressure.
Our results support a recent proposition that carbon-rich regions strongly
influence magnetotransport properties of carbon-doped EuB6, such as they play a
role of spacers, which prevent percolation of ferromagnetic phase. | | Source: | arXiv, 2010.10848 | | Services: | Forum | Review | PDF | Favorites | |
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