Regensburg 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 49: Poster Session: Superconductivity
TT 49.3: Poster
Mittwoch, 3. April 2019, 15:00–18:30, Poster D
Electrical properties of [SnSe]m[NbSe2]n ferecrystals with m = 6, 9 and n = 1 — •Klara Mihov1, Olivio Chiatti1, Martina Trahms1, Corinna Grosse1, Kyle Hite2, Matty B. Alemayehu2, Dave C. Johnson2, and Saskia F. Fischer1 — 1Novel Materials Group, Humboldt-Universität zu Berlin, 10099 Berlin, Germany — 2Solid State Chemistry, Inorganic Chemistry, Electrochemistry and Materials Science, University of Oregon, Eugene, OR 97403-1253, U.S.A.
In the last years, much attention has been paid to the electrical properties of layered superconducting thin films [1]. The ferecrystals provide a possible model systems for layered superconductors. In this work, the ferecrystals are composed of a superconducting transition metal dichalgonide (NbSe2) stacked repeatedly with metal monochalgogenide (SnSe)[2]. Here, we examine ferecrystals with m = 6, 9 and n = 1 which show a superconducting phase below a critical temperature. The Ginzburg-Landau coherence lengths are determinded from the critical magnetic fields and give information about the coupling between the superconducting NbSe2-layers[3]. In addition, the investigated ferecrystals provide a striking opportunity to investigate superconducting fluctuations above the critical temperature.
[1] C. Grosse et al., Scientific Reports 6, 33457, (2016).
C. Grosse et al., Crystal Research and technology 52(10), (2017).
M. Trahms et al., Superconductor Science and Technology 31(6), (2018).