Long-Range Ordered Amorphous Atomic Chains as Building Blocks of a Superconducting Quasi-One-Dimensional Crystal

Chao An, Yonghui Zhou, Chunhua Chen, Fucong Fei, Fengqi Song, Changyong Park, Jianhui Zhou, Horst-Günter Rubahn, Victor V. Moshchalkov, Xuliang Chen, G. Zhang*, Zhaorong Yang

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

Crystalline and amorphous structures are two of the most common solid-state phases. Crystals having orientational and periodic translation symmetries are usually both short-range and long-range ordered, while amorphous materials have no long-range order. Short-range ordered but long-range disordered materials are generally categorized into amorphous phases. In contrast to the extensively studied crystalline and amorphous phases, the combination of short-range disordered and long-range ordered structures at the atomic level is extremely rare and so far has only been reported for solvated fullerenes under compression. Here, a report on the creation and investigation of a superconducting quasi-1D material with long-range ordered amorphous building blocks is presented. Using a diamond anvil cell, monocrystalline (TaSe 4 ) 2 I is compressed and a system is created where the TaSe 4 atomic chains are in amorphous state without breaking the orientational and periodic translation symmetries of the chain lattice. Strikingly, along with the amorphization of the atomic chains, the insulating (TaSe 4 ) 2 I becomes a superconductor. The data provide critical insight into a new phase of solid-state materials. The findings demonstrate a first ever case where superconductivity is hosted by a lattice with periodic but amorphous constituent atomic chains.

OriginalsprogEngelsk
Artikelnummer2002352
TidsskriftAdvanced Materials
Vol/bind32
Udgave nummer38
Antal sider8
ISSN0935-9648
DOI
StatusUdgivet - 24. sep. 2020

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