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

Journal Article · · Advanced Materials
 [1];  [2];  [2];  [3];  [3];  [4];  [2];  [5];  [6];  [2];  [5];  [7]
  1. Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China
  2. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of Sciences Hefei 230031 China
  3. National Laboratory of Solid State Microstructures School of Physics Nanjing University Nanjing 210093 China
  4. HPCAT X‐Ray Science Division Argonne National Laboratory Argonne IL 60439 USA
  5. NanoSYD Mads Clausen Institute and DIAS Danish Institute for Advanced Study University of Southern Denmark Alsion 2 Sonderborg DK‐6400 Denmark
  6. KU Leuven Celestijnenlaan 200D Leuven B‐3001 Belgium
  7. Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China, Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of Sciences Hefei 230031 China
Abstract

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.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1643132
Alternate ID(s):
OSTI ID: 1756431
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 38 Vol. 32; ISSN 0935-9648
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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