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Drastic Suppression of CDW (Charge Density Wave) by Pd Addition in TiSe<subscript>2</subscript>.
In: Journal of Superconductivity & Novel Magnetism, Jg. 36 (2023), Heft 1, S. 3-9
Online
academicJournal
Zugriff:
TiSe2 is a known topological semi-metal (TSM) having both the semi-metallic and topological characters simultaneously along with the charge density wave (CDW) at below 200 K. In the current short article, we study the impact of Pd addition on CDW character of TiSe2 and the possible induction of superconductivity at low temperatures. Bulk samples of TiSe2 and Pd0.1TiSe2 are synthesized by solid-state reaction route, which are further characterized by powder X-ray diffraction (PXRD) and field emission scanning electron microscopy (FESEM), respectively, for their structural and micro-structural details. The vibrational modes of both samples are being analyzed by Raman spectroscopy, showing the occurrence of both A1g and Eg modes. CDW of pure TiSe2 seen at around 200 K in electrical transport measurements in terms of sharp semi-metallic to metallic transition peak with hysteresis in cooling/warming cycles is not seen in Pd0.1TiSe2 and rather a near metallic transport is seen down to 2 K. Although superconductivity is not seen down to 2 K, the CDW transition is seemingly completely suppressed in Pd0.1TiSe2. It is clear that Pd addition in TiSe2 suppresses CDW drastically. Trials are underway to induce superconductivity in Pd-added TiSe2. Density functional theory (DFT) calculations show primary evidence of suppression of CDW by addition of Pd in TiSe2 due to an increase in the density of states. [ABSTRACT FROM AUTHOR]
Titel: |
Drastic Suppression of CDW (Charge Density Wave) by Pd Addition in TiSe<subscript>2</subscript>.
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Autor/in / Beteiligte Person: | Saini, Abhilasha ; Karn, N. K. ; Kumar, Kapil ; Aloysius, R. P. ; Awana, V. P. S. |
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Zeitschrift: | Journal of Superconductivity & Novel Magnetism, Jg. 36 (2023), Heft 1, S. 3-9 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 1557-1939 (print) |
DOI: | 10.1007/s10948-022-06453-9 |
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