Friday, January 26, 2018 11:45 am
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11:45 am
EST (GMT -05:00)
Tarun Patel: Photocurrent imaging of charge density wave transitions in ultrathin 1T-TaS2
![Tarun Patel](/institute-for-quantum-computing/sites/default/files/uploads/images/screen_shot_2018-01-23_at_11.46.56_am_0.png)
1T-TaS2 is a layered van-der Waals material which shows multiple charge density wave (CDW) transitions as a function of temperature. Ultrathin flakes fabricated by mechanical exfoliation and protected from oxidation with h-BN capping in inert atmosphere have been shown to retain these transitions. We aim to use scanning photocurrent microscopy to image the nearly commensurate/commensurate charge density wave transition in 1T- TaS2. We study the effect of dimensionality and in-plane current on the first-order phase transition with spatial resolution within the diffraction limit.