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arXiv · 1801.04677

A study of electron and thermal transport in layered Titanium disulphide single crystals

Dhavala Suri·Vantari Siva·Shalikram Joshi·Kartik Senapati·P. K. Sahoo·Shikha Varma·R. S. Patel
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Abstract

We present a detailed study of thermal and electrical transport behavior of single crystal Titanium disulphide flakes, which belongs to the two dimensional, transition metal dichalcogenide class of materials. In-plane Seebeck effect measurements revealed a typical metal-like linear temperature dependence in the range of 85 - 285 K. Electrical transport measurements with in-plane current geometry exhibited a nearly T^2 dependence of resistivity in the range of 10 - 300 K. However, transport measurements along the out-of-plane current geometry showed a transition in temperature dependence of resistivity from T^2 to T^5 beyond 200 K. Interestingly, Au ion-irradiated TiS2 samples showed a similar T 5 dependence of resistivity beyond 200 K, even in the current-in-plane geometry. Micro- Raman measurements were performed to study the phonon modes in both pristine and ion-irradiated TiS2 crystals.

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Dhavala Suri, Vantari Siva, Shalikram Joshi, Kartik Senapati, P. K. Sahoo, Shikha Varma, R. S. Patel. 2018-01-15. A study of electron and thermal transport in layered Titanium disulphide single crystals. https://doi.org/10.1088/1361-648x%2Faa90c5

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