Exploring electronic correlations in low dimensional materials

T. SERKAN KASIRGA

MSN Graduate Program and UNAM

Strong electronic correlations among various degrees of freedoms in solids result in the emergence of fascinating phenomena. To name a few we can list metal-insulator transitions, charge density wave transitions and superconductivity. However, these phenomena are notoriously difficult to study experimentally as they are typically associated with phase transitions that are extremely sensitive to the defects and impurities in the materials. In this talk, I will present our efforts to understand the phase transitions in some exemplary materials and present a journey from materials synthesis to characterization of the properties via electrical, mechanical and optical methods. First, I will talk about how we synthesize the materials in a unique setup that allows real-time optical observation of the crystal synthesis. Then, I will talk about the effect of thickness on the phase transitions and how we use light to measure certain properties of the correlated materials. Overall, I will try to give a general perspective on our efforts and conclude with open questions.

About The Speaker

Dr. Kasırga got his bachelor’s degree from Bilkent University in physics in 2009. Then, he moved to the University of Washington, Seattle for his Ph.D. in physics. After completing his Ph.D. in 2013, he moved to Bilkent University as a principal investigator at the National Nanotechnology Research Center (UNAM) and established a research program. Since 2015, he has been serving as the associate director of UNAM and since 2016 he is co-affiliated with the department of physics. His research has appeared in prestigious journals in his field such as Nature, Nature Nanotechnology, Nano Letters and 2D Materials. For these research efforts, the Academy of Science awarded him the Young Scientist Award (GEBİP) in 2021.

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