Synthesis and Superconductivity of Layered Compounds with Orthogonal [Zr2N2] Network

Synthesis and Superconductivity of Layered Compounds with Orthogonal [Zr2N2] Network Layered α-form ZrNX (X: Cl and Br) compounds with high quality were prepared by chemical vapor transport. The intercalation of alkali metal A (A: Li, Na, K, Rb) was carried out to realize electron doping into the orthogonal [Zr2N2] layers. The Rietveld refinement analysis reveals that the [Zr2N2] crystalline layers in the intercalation compounds shift mutually in the ab plane when compared with the hosts. Magnetic measurements show that the intercalation compounds A x ZrNX are changed into superconductors with transition temperature T c of up to 12 K. Upon the cointercalation of solvent molecules such as THF, T c decreases to as low as 6.1 K with increasing the interlayer spacing d up to 14 Å, which is similar to the d dependence of T c recently found in electron-doped α-form TiNX series. We also succeeded in synthesizing another new polymorph of α-Zr2N2S by the topochemical reaction between α-form ZrNX and Na2S. α-Zr2N2S (space group: Immm, a = 4.1375(1) Å, b = 3.5422(1) Å, and c = 11.5204(3) Å) has the same α-[Zr2N2] layers, whereas the interlayer spacing between two adjacent [Zr2N2] layers is effectively decreased by 1/3 when compared with the parent compounds of ZrNX. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Superconductivity and Novel Magnetism Springer Journals

Synthesis and Superconductivity of Layered Compounds with Orthogonal [Zr2N2] Network

Loading next page...
 
/lp/springer_journal/synthesis-and-superconductivity-of-layered-compounds-with-orthogonal-AaVOphDQwQ
Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Physics; Strongly Correlated Systems, Superconductivity; Magnetism, Magnetic Materials; Condensed Matter Physics; Characterization and Evaluation of Materials
ISSN
1557-1939
eISSN
1557-1947
D.O.I.
10.1007/s10948-017-4089-2
Publisher site
See Article on Publisher Site

Abstract

Layered α-form ZrNX (X: Cl and Br) compounds with high quality were prepared by chemical vapor transport. The intercalation of alkali metal A (A: Li, Na, K, Rb) was carried out to realize electron doping into the orthogonal [Zr2N2] layers. The Rietveld refinement analysis reveals that the [Zr2N2] crystalline layers in the intercalation compounds shift mutually in the ab plane when compared with the hosts. Magnetic measurements show that the intercalation compounds A x ZrNX are changed into superconductors with transition temperature T c of up to 12 K. Upon the cointercalation of solvent molecules such as THF, T c decreases to as low as 6.1 K with increasing the interlayer spacing d up to 14 Å, which is similar to the d dependence of T c recently found in electron-doped α-form TiNX series. We also succeeded in synthesizing another new polymorph of α-Zr2N2S by the topochemical reaction between α-form ZrNX and Na2S. α-Zr2N2S (space group: Immm, a = 4.1375(1) Å, b = 3.5422(1) Å, and c = 11.5204(3) Å) has the same α-[Zr2N2] layers, whereas the interlayer spacing between two adjacent [Zr2N2] layers is effectively decreased by 1/3 when compared with the parent compounds of ZrNX.

Journal

Journal of Superconductivity and Novel MagnetismSpringer Journals

Published: Apr 9, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off