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Physics Event · · ·

Physics Colloquium: Prof. Darrell Schlom, Cornell University

Date and Time: Wednesday, November 7, 2012 at 4:00 PM (CST)
Location: RLM 4.102

Physics Colloquium

Prof. Darrell Schlom, Department of Materials Science and Engineering and Kavli Institute at Cornell for Nanoscale Science, Cornell University

"Enhancing Oxide Properties - The Approach of the Modern Alchemist"

PLEASE NOTE SPECIAL TIME THIS WEEK ONLY

4:00pm, The John A. Wheeler Lecture Hall (RLM 4.102)

Coffee and cookies will be served at 3:45pm in RLM 4.102

Host: Prof. Fiete

Abstract:

The diverse properties available in oxides have been established primarily through measurements on bulk samples. The synthesize of complex oxides in thin film form makes a different set of tricks available to enhance their properties including strain and the ability to customize structure at the atomic-layer level. Using epitaxy and the misfit strain imposed by an underlying substrate, it is possible to strain oxide thin films to percent levels—far beyond where they would crack or plastically deform in bulk. Under such strains, the properties of oxides can be dramatically altered. For example, materials that are not ferroelectric or ferromagnetic in their unstrained state can be transmuted into ferroelectrics, ferromagnets, or materials that are both at the same time. Ways in which such thin film tricks can be used to improve tunable microwave dielectrics and photocatalytic materials will be shown. In addition to describing some of the achievements of a thin film approach to enhancing oxides, some of the major materials challenges will also be mentioned.

Upcoming
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Members of the Theory Group discuss their work
September 18 12:30 RLM 11.204
Imaging and Spectroscopy of Graphene Heterostructures
September 18 14:00 RLM 13.202
Imaging Nanoscale Emergent Properties in Complex Oxides with Microwave Impedance Microscopy
September 19 16:00 RLM 5.104
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September 22 16:00 RLM 9.222
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September 23 14:00 RLM 7.104
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September 23 17:00 RLM 7.104
The Alice Experiment at the LHC -- A Little Big Bang!
September 24 12:00 RLM 8.136
Topics of interest to physicists and mathematicians
September 24 16:15 The John A. Wheeler Lecture Hall (RLM 4.102)
The Question of Mass in Newton's Law of Gravity
September 25 12:30 RLM 11.204
Nanoscale magnetic imaging at ambient conditions using a scanning nitrogen-vacancy center in diamond
September 25 12:30 RLM 9.222
Members of the Theory Group discuss their work
September 26 12:00 WAG 316
An Alternative Agenda for Philosophy of Science
September 26 16:00 RLM 5.104
Topological phases in transition metal oxides
September 29 13:00 RLM 11.204
Rheology of suspensions and emulsions
September 30 09:30 RLM 13.202
Microwave Impedance Microscope Study of Two Dimensional Material Electrical Properties
September 30 17:00 RLM 7.104
Understanding the Higgs Boson with the Large Hadron Collider!
October 1 16:15 The John A. Wheeler Lecture Hall (RLM 4.102)
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October 1 16:15 The John A. Wheeler Lecture Hall (RLM 4.102)
Excited Masses: Adventures in Public Outreach
October 8 16:15 The John A. Wheeler Lecture Hall (RLM 4.102)
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