Room temperature 2D electron gas at the (001)-SrTiO$_3$ surface

Sara Gonzalez (1) , Claire Mathieu (1) , O. Copie (1) , Vitaliy Feyer (2) , Claus M Schneider (2) , Nicholas Barrett (1)

1 LENSIS - Laboratoire d'Etude des NanoStructures et Imagerie de Surface
2 Peter Grünberg Institut

Functional oxides and phenomena such as a 2D electron gas (2DEG) at oxide interfaces represent potential technological breakthroughs for post-CMOS electronics. Non-invasive techniques are required to study the surface chemistry and electronic structure, underlying their often unique electrical properties. The sensitivity of photoemission electron microscopy to chemistry and electronic structure makes it an invaluable tool for probing the near surface region of microscopic regions and domains of functional materials. We present results demonstrating a room temperature 2DEG at the (001)-SrTiO$_3$ surface. The 2DEG is switched on by soft X-ray irradiation.

Domaines: Physique [physics]

Sara Gonzalez, Claire Mathieu, O. Copie, Vitaliy Feyer, Claus M Schneider, et al.. Room temperature 2D electron gas at the (001)-SrTiO$_3$ surface. Applied Physics Letters, 2017, 111, pp.181601. ⟨10.1063/1.5001222⟩. ⟨cea-01704463⟩