Synthesis and Superconductivity of Electron-Doped β-ZrNCl with Partial Substitution of Ti on Zr Site
Journal Article
·
· Journal of Superconductivity and Novel Magnetism
- Chinese Academy of Sciences, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics (China)
Highly crystallized α-TiNCl and ZrNCl with orthogonal network of [M{sub 2}N{sub 2}] (M: Ti and Zr) were used to synthesize the solid-solution phase α-Ti{sub y}Zr{sub 1−y}NCl, which was irreversibly transformed into its β-form polymorph with honeycomb network upon a heat treatment. The intercalation of lithium (Li) into the obtained powder samples was carried out to realize the electron doping in β-form compound. The measurements of magnetic susceptibility and electrical resistivity suggest that the intercalated compound β-Li{sub 0.43}Ti{sub 0.09}Zr{sub 0.91}NCl shows superconductivity with transition temperature (T{sub c}) of 15.0 K. Upon the cointercalation of solvent molecule of tetrahydrofuran (THF), two transitions were observed at 14.1 and ∼21 K, corresponding to the main phase of β-Li{sub x}(THF){sub y}ZrNCl and a THF-cointercalated phase of β-Ti{sub y}Zr{sub 1−y}NCl, respectively. We consider that such a tiny substitution of Ti on Zr site in β-form structure play an important role in the increase of T{sub c}.
- OSTI ID:
- 22774144
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 1 Vol. 31; ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrochemical investigations of novel electrode materials. Final report, August 1, 1977-December 31, 1983
Materials Data on ZrNCl by Materials Project
Technical Report
·
Fri Jun 01 00:00:00 EDT 1984
·
OSTI ID:6702541
Materials Data on ZrNCl by Materials Project
Dataset
·
Wed Jul 15 00:00:00 EDT 2020
·
OSTI ID:1266727