Surface terminations and layer-resolved tunneling spectroscopy of the 122 iron pnictide superconductors

The surface terminations of 122-type alkaline earth metal iron pnictides AEFe2As2(AE=Ca,Ba) are investigated with scanning tunneling microscopy/spectroscopy. Cleaving these crystals at a cryogenic temperature yields a large majority of terminations with an atomically resolved (√2 × √2)R45 or 1 × 2 l...

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Veröffentlicht in:	Physical review. B 2019-04, Vol.99 (13)
Hauptverfasser:	Li, Ang, Yin, Jia-Xin, Wang, Jihui, Wu, Zheng, Ma, Jihua, Sefat, Athena Safa, Sales, Brian C., Mandrus, David, McGuire, Michael A., Jin, Rongying, Zhang, Chenglin, Dai, Pengcheng, Lv, Bing, Chu, Ching-Wu, Liang, Xuejin, Hor, P, Ting, C, Pan, Shuheng
Format:	Artikel
Sprache:	eng
Schlagworte:	CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Online-Zugang:	Volltext
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