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Evidence for Unconventional Superconductivity and Nontrivial Topology in PdTe
Ramakanta Chapai, P. V. Sreenivasa Reddy, Lingyi Xing +4
PdTe is a superconductor with Tc ~4.25 K. Recently, evidence for bulk-nodal and surface-nodeless gap features has been reported in PdTe [Yang et al., Phys. Rev. Lett. 130, 046402 (…
Coexistence of bulk-nodal and surface-nodeless Cooper pairings in a superconducting Dirac semimetal
Xian P. Yang, Yigui Zhong, Sougata Mardanya +21
The interplay of nontrivial topology and superconductivity in condensed matter physics gives rise to exotic phenomena. However, materials are extremely rare where it is possible to…
Pt-Bi Antibonding Interaction: The Key Factor for Superconductivity in Monoclinic BaPt2Bi2
Xin Gui, Lingyi Xing, Xiaoxiong Wang +3
In the search for superconductivity in BaAu2Sb2-type monoclinic structure, we have successfully synthesized a new compound BaPt2Bi2, which crystallizes in the space group P21/m (S.…
Interrogating the superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 Layer-by-layer
Jisun Kim, Hyoungdo Nam, Guorong Li +7
Ever since the discovery of high-Tc superconductivity in layered cuprates, the roles that individual layers play have been debated, due to difficulty in layer-by-layer characteriza…
Surface terminations and layer-resolved spectroscopy in 122 iron pnictide superconductors
Ang Li, J. -X. Yin, Jihui Wang +13
The surface terminations of 122-type alkaline earth metal iron pnictides AEFe2As2 (AE = Ca, Ba) are investigated with scanning tunneling microscopy/spectroscopy (STM/STS). Cleaving…
Structural and Physical Properties of CaFe4As3 Single Crystals
A. B. Karki, G. T. McCandless, S. Stadler +4
We report the synthesis, and structural and physical properties of CaFe4As3 single crystals. Needle-like single crystals of CaFe4As3 were grown out of Sn flux and the compound adop…