STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES

The series LixNbS2 (0 ≤ x ≤ 0.50) and LixNbSe2 (0 ≤ x ≤ 0.67) have been prepared by high-temperature reaction of Li2S, Nb, and S or Li2Se, Nb, and Se. Structures have been determined by analysis of X-ray powder patterns with polytypism observed in the sulfide series. Evidence of staging and Li order...

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Main Authors: Mcewen, C, Stjulien, D, Edwards, P, Sienko, M
Format: Journal article
Language:English
Published: 1985
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author Mcewen, C
Stjulien, D
Edwards, P
Sienko, M
author_facet Mcewen, C
Stjulien, D
Edwards, P
Sienko, M
author_sort Mcewen, C
collection OXFORD
description The series LixNbS2 (0 ≤ x ≤ 0.50) and LixNbSe2 (0 ≤ x ≤ 0.67) have been prepared by high-temperature reaction of Li2S, Nb, and S or Li2Se, Nb, and Se. Structures have been determined by analysis of X-ray powder patterns with polytypism observed in the sulfide series. Evidence of staging and Li ordering is reported, and crystal parameters are proposed for a second-staged sample, Li0.2NbSe2. In the series LixNbSe2, Tc exhibits a monotonic decrease with increasing lithium content, falling to less than 2 K by x = 0.25. In contrast, in the LixNbS2 series, Tc exhibits a more complicated pattern with Tc plummeting to below 2 K by x = 0.05, only to rebound to 3.7 K at x = 0.33 and then fall to below 2 K by x = 0.4. © 1985 American Chemical Society.
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spelling oxford-uuid:b640e2da-db3c-4311-84e3-a155f58dd1ff2022-03-27T04:39:34ZSTRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDESJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b640e2da-db3c-4311-84e3-a155f58dd1ffEnglishSymplectic Elements at Oxford1985Mcewen, CStjulien, DEdwards, PSienko, MThe series LixNbS2 (0 ≤ x ≤ 0.50) and LixNbSe2 (0 ≤ x ≤ 0.67) have been prepared by high-temperature reaction of Li2S, Nb, and S or Li2Se, Nb, and Se. Structures have been determined by analysis of X-ray powder patterns with polytypism observed in the sulfide series. Evidence of staging and Li ordering is reported, and crystal parameters are proposed for a second-staged sample, Li0.2NbSe2. In the series LixNbSe2, Tc exhibits a monotonic decrease with increasing lithium content, falling to less than 2 K by x = 0.25. In contrast, in the LixNbS2 series, Tc exhibits a more complicated pattern with Tc plummeting to below 2 K by x = 0.05, only to rebound to 3.7 K at x = 0.33 and then fall to below 2 K by x = 0.4. © 1985 American Chemical Society.
spellingShingle Mcewen, C
Stjulien, D
Edwards, P
Sienko, M
STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES
title STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES
title_full STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES
title_fullStr STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES
title_full_unstemmed STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES
title_short STRUCTURE AND SUPERCONDUCTIVITY IN LITHIUM-INTERCALATED NIOBIUM DICHALCOGENIDES
title_sort structure and superconductivity in lithium intercalated niobium dichalcogenides
work_keys_str_mv AT mcewenc structureandsuperconductivityinlithiumintercalatedniobiumdichalcogenides
AT stjuliend structureandsuperconductivityinlithiumintercalatedniobiumdichalcogenides
AT edwardsp structureandsuperconductivityinlithiumintercalatedniobiumdichalcogenides
AT sienkom structureandsuperconductivityinlithiumintercalatedniobiumdichalcogenides