Retzlaff, Reiner ; Buckow, Alexander ; Komissinskiy, Philipp ; Ray, Soumya ; Schmidt, Stefan ; Mühlig, Holger ; Schmidl, Frank ; Seidel, Paul ; Kurian, Jose ; Alff, Lambert (2015)
Superconductivity and role of pnictogen and Fe substitution in 112-LaPdxPn2(Pn=Sb,Bi).
In: Physical Review B, 91 (10)
doi: 10.1103/PhysRevB.91.104519
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on the epitaxial growth of As-free and phase-pure thin films of the 112-pnictide compounds LaPdxPn2 (Pn=Sb,Bi) grown on (100) MgO substrates by molecular beam epitaxy. X-ray diffraction, reflection high-energy electron diffraction, and x-ray photoelectron spectroscopy confirm the HfCuSi2 structure of the material with a peculiar pnictogen square net layer. The superconducting transition temperature Tc varies little with Pd concentration. LaPdxSb2 has a higher Tc (3.2 K) by about 20% compared with LaPdxBi2 (2.7 K). Fe substitution of Pd leads to a rapid decay of superconductivity, suggesting that these superconductors are conventional type II.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Retzlaff, Reiner ; Buckow, Alexander ; Komissinskiy, Philipp ; Ray, Soumya ; Schmidt, Stefan ; Mühlig, Holger ; Schmidl, Frank ; Seidel, Paul ; Kurian, Jose ; Alff, Lambert |
| Art des Eintrags: | Bibliographie |
| Titel: | Superconductivity and role of pnictogen and Fe substitution in 112-LaPdxPn2(Pn=Sb,Bi) |
| Sprache: | Englisch |
| Publikationsjahr: | 1 März 2015 |
| Verlag: | APS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 91 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.1103/PhysRevB.91.104519 |
| Kurzbeschreibung (Abstract): | We report on the epitaxial growth of As-free and phase-pure thin films of the 112-pnictide compounds LaPdxPn2 (Pn=Sb,Bi) grown on (100) MgO substrates by molecular beam epitaxy. X-ray diffraction, reflection high-energy electron diffraction, and x-ray photoelectron spectroscopy confirm the HfCuSi2 structure of the material with a peculiar pnictogen square net layer. The superconducting transition temperature Tc varies little with Pd concentration. LaPdxSb2 has a higher Tc (3.2 K) by about 20% compared with LaPdxBi2 (2.7 K). Fe substitution of Pd leads to a rapid decay of superconductivity, suggesting that these superconductors are conventional type II. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 21 Apr 2015 10:58 |
| Letzte Änderung: | 21 Apr 2015 10:58 |
| PPN: | |
| Sponsoren: | This work was supported by the Deutsche Forschungsgemeinschaft (DFG) through Grant No. SPP 1458 (LA 560/10-2 and SE 664/15-2). , This work was partially supported by the Landesgraduiertenförderung Thüringen. |
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