Phase stability in SmB\(_6\)

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...

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Bibliographic Details
Published in:arXiv.org 2021-05
Main Authors: M Victoria Ale Crivillero, Rößler, Sahana, Borrmann, H, Dawczak-Dȩbicki, H, Rosa, Priscila F S, Fisk, Z, Wirth, S
Format: Article
Language:English
Subjects:
Electron transport
Low temperature
Phase stability
Resistance
Scanning tunneling microscopy
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.2105.14916