IQIM Postdoctoral and Graduate Student Seminar

Friday October 3, 2014 4:30 PM

Angle-resolved photoemission spectroscopy of Sr1-xLaxCuO2 thin films grown by molecular-beam epitaxy

Speaker: John Harter, Hsieh Group, Caltech
Location: East Bridge 114

Abstract: Among the multitude of known cuprate material families and associated structures, the archetype is "infinite-layer" ACuO2, where perfectly square and flat CuO2 planes are separated by layers of alkaline earth atoms.  The infinite-layer structure is free of magnetic rare earth ions, oxygen chains, orthorhombic distortions, incommensurate superstructures, ordered vacancies, and other complications that abound among the other cuprate material families.  I will present in situ angle-resolved photoemission spectroscopy measurements of epitaxially-stabilized Sr1-xLaxCuO2 thin films grown by molecular-beam epitaxy.  By studying a completely different electron-doped cuprate, we can for the first time independently confirm that the cuprate phase diagram is fundamentally asymmetric and provide a coherent framework for understanding the generic properties of all electron-doped cuprates.

 

 - Refreshments follow the seminar on the Bridge patio.

Series IQIM Postdoctoral and Graduate Student Seminar Series

Contact: Marcia Brown at 626-395-4013 marciab@caltech.edu