MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4
In the LiMxTi2-xO4 (M = Cr3+, Al3+) spinel solid solution systems, the M3+ cations substitute at the octahedral sites and thus directly interact with the titanium 3d conduction electrons. The effect is dramatically illustrated in the chromium series where superconductivity is supressed completely at...
| Päätekijät: | , , |
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| Aineistotyyppi: | Journal article |
| Kieli: | English |
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1990
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| _version_ | 1826286763378737152 |
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| author | Lambert, P Edwards, P Harrison, M |
| author_facet | Lambert, P Edwards, P Harrison, M |
| author_sort | Lambert, P |
| collection | OXFORD |
| description | In the LiMxTi2-xO4 (M = Cr3+, Al3+) spinel solid solution systems, the M3+ cations substitute at the octahedral sites and thus directly interact with the titanium 3d conduction electrons. The effect is dramatically illustrated in the chromium series where superconductivity is supressed completely at 2.5% Cr3+ substitution by a magnetic impurity effect. Infrared transmission measurements indicate a metal-nonmetal transition (MNMT) in LiCrxTi2-xO4 at 0.33 < x < 0.40. In the aluminum series, the superconducting transition temperature Tc persists at a high value (> 6 K) to x = 0.33, where a MNMT is proposed. Percolation, disproportionation, and conduction electron concentration are briefly discussed as possible contributing mechanisms for the MNMT in the cation-substituted LiMxTi2-xO4 (M = Li+, Al3+, Cr3+) system. © 1990. |
| first_indexed | 2024-03-07T01:48:33Z |
| format | Journal article |
| id | oxford-uuid:9944948f-b6db-4a6e-b3f4-450599fca2b8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:48:33Z |
| publishDate | 1990 |
| record_format | dspace |
| spelling | oxford-uuid:9944948f-b6db-4a6e-b3f4-450599fca2b82022-03-27T00:13:08ZMAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9944948f-b6db-4a6e-b3f4-450599fca2b8EnglishSymplectic Elements at Oxford1990Lambert, PEdwards, PHarrison, MIn the LiMxTi2-xO4 (M = Cr3+, Al3+) spinel solid solution systems, the M3+ cations substitute at the octahedral sites and thus directly interact with the titanium 3d conduction electrons. The effect is dramatically illustrated in the chromium series where superconductivity is supressed completely at 2.5% Cr3+ substitution by a magnetic impurity effect. Infrared transmission measurements indicate a metal-nonmetal transition (MNMT) in LiCrxTi2-xO4 at 0.33 < x < 0.40. In the aluminum series, the superconducting transition temperature Tc persists at a high value (> 6 K) to x = 0.33, where a MNMT is proposed. Percolation, disproportionation, and conduction electron concentration are briefly discussed as possible contributing mechanisms for the MNMT in the cation-substituted LiMxTi2-xO4 (M = Li+, Al3+, Cr3+) system. © 1990. |
| spellingShingle | Lambert, P Edwards, P Harrison, M MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4 |
| title | MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4 |
| title_full | MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4 |
| title_fullStr | MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4 |
| title_full_unstemmed | MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4 |
| title_short | MAGNETISM, SUPERCONDUCTIVITY, AND THE METAL NONMETAL TRANSITION IN THE SPINEL LIAL-3+XTI2-XO4, LICR-3+XTI2-XO4 |
| title_sort | magnetism superconductivity and the metal nonmetal transition in the spinel lial 3 xti2 xo4 licr 3 xti2 xo4 |
| work_keys_str_mv | AT lambertp magnetismsuperconductivityandthemetalnonmetaltransitioninthespinellial3xti2xo4licr3xti2xo4 AT edwardsp magnetismsuperconductivityandthemetalnonmetaltransitioninthespinellial3xti2xo4licr3xti2xo4 AT harrisonm magnetismsuperconductivityandthemetalnonmetaltransitioninthespinellial3xti2xo4licr3xti2xo4 |