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. 2016 Feb 2;7:10556. doi: 10.1038/ncomms10556

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(a) Optical image of PbTaSe₂ single crystals measured in this work. (b) X-ray diffraction measurements showing the lattice parameters matching with the space group (187) . (c) ARPES core-level spectrum showing clear Pb-5d, Se-3d and Ta-4f core-level peaks. (d) Resistivity as a function of temperature showing a superconducting transition at 3.8 K. (e,f) STM topography of PbTaSe₂, indicative of a surface lattice constant 3.2 Å.

Inline graphic — (a) Optical image of PbTaSe₂ single crystals measured in this work. (b) X-ray diffraction measurements showing the lattice parameters matching with the space group (187) . (c) ARPES core-level spectrum showing clear Pb-5d, Se-3d and Ta-4f core-level peaks. (d) Resistivity as a function of temperature showing a superconducting transition at 3.8 K. (e,f) STM topography of PbTaSe₂, indicative of a surface lattice constant 3.2 Å.