Electronic reconstruction in correlated electron heterostructures

Satoshi Okamoto; Andrew J. Millis

doi:10.1117/12.623199

30 August 2005 Electronic reconstruction in correlated electron heterostructures

Satoshi Okamoto, Andrew J. Millis

Proceedings Volume 5932, Strongly Correlated Electron Materials: Physics and Nanoengineering; 593218 (2005) https://doi.org/10.1117/12.623199
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Electronic phase behavior in correlated-electron systems is a fundamental problem of condensed matter physics. We argue here that the change in the phase behavior near the surface and interface, i.e., electronic reconstruction, is the fundamental issue of the correlated-electron surface or interface science. Beyond its importance to basic science, understanding of this behavior is crucial for potential devices exploiting the novel properties of the correlated systems. We present a general overview of the field, and then illustrate the general concepts by theoretical studies of the model heterostructures comprised of a Mott-insulator and a band-insulator, which show that spin (and orbital) orderings in thin heterostructures are generically different from the bulk and that the interface region, about three-unit-cell wide, is always metallic, demonstrating that electronic reconstruction generally occurs. Predictions for photoemission experiments are made to show how the electronic properties change as a function of position, and the magnetic phase diagram is determined as a function of temperature, number of layers, and interaction strength. Future directions for research are also discussed.

Citation Download Citation

Satoshi Okamoto and Andrew J. Millis "Electronic reconstruction in correlated electron heterostructures", Proc. SPIE 5932, Strongly Correlated Electron Materials: Physics and Nanoengineering, 593218 (30 August 2005); https://doi.org/10.1117/12.623199

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available