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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Format: | Journal article |
Language: | English |
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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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format | Journal article |
id | oxford-uuid:b640e2da-db3c-4311-84e3-a155f58dd1ff |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T03:17:21Z |
publishDate | 1985 |
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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 |