Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals
1T’-MoTe<sub>2</sub> has gained considerable attention owing to its topological character. This material undergoes spatial inversion symmetry at 300 K. A structural transition to the T<sub>d</sub> phase, which is represented by a kink in the resistivity, was observed below 25...
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MDPI AG
2022-05-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/11/3782 |
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| author | Aoi Kobayashi Yoshiki Takano Satoshi Demura |
| author_facet | Aoi Kobayashi Yoshiki Takano Satoshi Demura |
| author_sort | Aoi Kobayashi |
| collection | DOAJ |
| description | 1T’-MoTe<sub>2</sub> has gained considerable attention owing to its topological character. This material undergoes spatial inversion symmetry at 300 K. A structural transition to the T<sub>d</sub> phase, which is represented by a kink in the resistivity, was observed below 250 K without inversion symmetry along the <i>c</i>-axis, while superconductivity was observed at 0.1 K. Substitution of Se into this material suppressed the appearance of the kink structure and increased the superconducting transition temperature to 2 K, which is consistent with previously reported results on polycrystalline samples. However, a specific heat jump was observed in the obtained single crystals, which did not exhibit kink structures in their resistivity. The results suggest that the T<sub>d</sub> structure was not suppressed entirely after Se substitution and that superconductivity was achieved without inversion symmetry. |
| first_indexed | 2024-03-10T01:09:45Z |
| format | Article |
| id | doaj.art-d885c17343e44855af62828c11ad90a5 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T01:09:45Z |
| publishDate | 2022-05-01 |
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| spelling | doaj.art-d885c17343e44855af62828c11ad90a52023-11-23T14:20:10ZengMDPI AGMaterials1996-19442022-05-011511378210.3390/ma15113782Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single CrystalsAoi Kobayashi0Yoshiki Takano1Satoshi Demura2College of Science and Technology, Nihon University, Chiyoda-ku, Tokyo 101-8308, JapanCollege of Science and Technology, Nihon University, Chiyoda-ku, Tokyo 101-8308, JapanCollege of Science and Technology, Nihon University, Chiyoda-ku, Tokyo 101-8308, Japan1T’-MoTe<sub>2</sub> has gained considerable attention owing to its topological character. This material undergoes spatial inversion symmetry at 300 K. A structural transition to the T<sub>d</sub> phase, which is represented by a kink in the resistivity, was observed below 250 K without inversion symmetry along the <i>c</i>-axis, while superconductivity was observed at 0.1 K. Substitution of Se into this material suppressed the appearance of the kink structure and increased the superconducting transition temperature to 2 K, which is consistent with previously reported results on polycrystalline samples. However, a specific heat jump was observed in the obtained single crystals, which did not exhibit kink structures in their resistivity. The results suggest that the T<sub>d</sub> structure was not suppressed entirely after Se substitution and that superconductivity was achieved without inversion symmetry.https://www.mdpi.com/1996-1944/15/11/3782superconductivitytransition metal chalcogenidestransport properties |
| spellingShingle | Aoi Kobayashi Yoshiki Takano Satoshi Demura Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals Materials superconductivity transition metal chalcogenides transport properties |
| title | Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals |
| title_full | Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals |
| title_fullStr | Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals |
| title_full_unstemmed | Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals |
| title_short | Observation of the Specific Heat Jump in the Se-Substituted MoTe<sub>2</sub> Single Crystals |
| title_sort | observation of the specific heat jump in the se substituted mote sub 2 sub single crystals |
| topic | superconductivity transition metal chalcogenides transport properties |
| url | https://www.mdpi.com/1996-1944/15/11/3782 |
| work_keys_str_mv | AT aoikobayashi observationofthespecificheatjumpinthesesubstitutedmotesub2subsinglecrystals AT yoshikitakano observationofthespecificheatjumpinthesesubstitutedmotesub2subsinglecrystals AT satoshidemura observationofthespecificheatjumpinthesesubstitutedmotesub2subsinglecrystals |