Valentina Martelli in research grants and scholarships supported by FAPESP.
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Materials that host energetically low lying interactions with non-trivial topology have attracted a lot of attention due to the potential impact that the manipulation of their metallic topologically protected surface states (TSS) could bring to technological applications in spintronics and quantum computing. Recently, the interest towards the contribution of TSS to thermoelectricity has b…
We plan to advance the understanding of the role of non-trivial topology in the determination of thermal transport properties. To meet our goals, we will perform a systematic investigation of thermoelectricity and heat transport at low temperatures in selected single crystals (SmB6, PbTe, and SnTe) with varying thicknesses and with controlled impurities. Careful and systematic work on the…
In this Doctorate project, we propose to study heat transport in selected complex oxides (bulk and thin films) with the aim to experimentally investigate collective regimes of transport (as hydrodynamic flow of phonons) and possible emergence of non-trivial topological states in oxides. SrTiO3 and BaBiO3 have been selected as test-bed compounds. Bulk SrTiO3 has be shown to display Poiseui…
Topological Insulators (TI) are bulk insulators with dissipation-less metallic surface states protected by time-reversal symmetry, hosted in a material with insulating bulk. Topological Kondo Insulators (TKI) are a special class of TI where the insulating gap stems from strong electronic correlations. The investigation of these materials has been attracting the attention of the condensed …
The goal of this project is to investigate the thermoelectric response in candidates Topological Crystalline Insulators (TCI) and heterostructures with the aim to bring relevant insights in the understanding of organization of charge carriers in this class of materials and to explore new routes for enhancing thermoelectric performance. To do so, we plan to carry out a systematic and compa…
The aim of this project is to advance the understanding of how thermoelectric propertiesare related to the presence of non-trivial topology in the electronic band structure. To pursue this purpose, a systematic study on single crystalline Bi4I4 (both ± and ² phases) will be carried out, investigating its structural and transport properties (electrical, thermal, and thermoelectric). An rel…
In this project, we propose an investigation of the thermal transport in single crystals of lead telluride (PbTe). Recently, PbTe has attracted great attention due to its thermoelectric performance when it is appropriately doped; however, tin telluride (SnTe) has gained importance as a greener alternative to it.The interest in the physical properties of these two materials has increased s…
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This internship research fellowship will support the MS candidate to join the group of Prof. Geetha Balakrishnan (University of Warwick, UK) for a period of six months with the aim of growing high-quality single crystals of two selected Bismuth-based compounds by Chemical Vapour Transport (CVT): Bi4I4 (in both alpha and beta phases) and the BiTeI. (AU)
| 1 / 1 | Ongoing research grants |
| 3 / 3 | Ongoing scholarships in Brazil |
| 5 / 5 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 10 / 10 | All research grants and scholarships |
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