Skip to main content

Highlights

Highlights

Feb 18, 2010
Princeton University

Ultra-Fast Electrically Driven Single Spin Rotations

Jason Petta - Department of Physics, Princeton University; Hong Lu - Materials Department, University of California at Santa Barbara; Art Gossard - Materials Department, University of California at Santa Barbara
A single electron spin in an external magnetic field forms a two-level system that can be used to create a spin qubit. However, achieving fast single spin rotations, as would be required to control a spin qubit, is a major challenge. It is difficult to drive spin rotations on timescales that are faster than the spin dephasing time and to individually address a single spin on the nanometer scale. We have developed a new method for quantum control of single spins that does not involve conventional electron spin resonance (ESR).
Feb 11, 2010

Ferroelectric Oxide Directly on Silicon

M.P. Warusawithana (Penn State University), C. Cen (Penn State University), C.R. Sleasman (Penn State University), J.C. Woicik (Penn State University), Y.L. Li (Penn State University), L. Fitting Kourkoutis (Penn State University), J.A. Klug (Penn State University), H. Li (Penn State University), P. Ryan (Penn State University), L-P. Wang (Penn State University), M. Bedzyk (Penn State University), D.A. Muller (Cornell University), L.Q. Chen (Penn State University), J. Levy (University of Pittsburgh), and D.G. Schlom (Cornell University)
Silicon/silicon dioxide is arguably the most important technological interface. With the end of Moore’s law scaling for silicon fast approaching, alternatives to silicon dioxide could enable new electronic device architectures. MRSEC researchers
Feb 11, 2010

Spin Transport in Nanowires

M. Tian, J. Wang, D. Rench, J. Cardellino, P. Schiffer, T. Mallouk, M. Chan and N. Samarth - Penn State University
The interplay between spin transport and exchange coupling profoundly affects charge transport between conventional metals and ferromagnets. This results in  giant magnetoresistance and the spin valve effect in multilayer thin films, phenomena of great importance for magnetic data storage. MRSEC researchers have developed Co-Cu-Co multilayer nanowires to explore these phenomena in nanowire geometries. 
Feb 9, 2010
New York University

Discover Magazine Names NYU Physics Finding One of Top Stories of 2009

The NYU team, led by Jasna Brujic, an assistant professor in NYU’s Department of Physics, developed an innovative way to tabulate the number of spheres-they created a method for determining how spheres pack from inside the jar, making it easier to more accurately count them.
Feb 3, 2010
Cornell University

The Best Sandwiches are Not the Most Perfect Sandwiches

Feb 3, 2010
Cornell University

“Nano-Rivers” of Electricity found in New Superconductors

Jan 29, 2010
Cornell University

Watching “Atoms” Hop Yields Clue to Growth of Perfect Crystals

Jan 12, 2010
University of Pennsylvania

Geometric Frustration in Buckled Colloidal Monolayers

Yilong Han, Yair Shokef, Ahmed M. Alsayed, Peter Yunker, Tom C. Lubensky & Arjun G. Yodh
Auger Recombination in Quantum Dot Materials
Auger Recombination in Quantum Dot Materials
Jan 12, 2010
University of Minnesota - Twin Cities

Auger Recombination in Quantum Dot Materials

Uwe Kortshagen
Auger recombination is an important mechanism that can limit the performance of solar cells.
Enhanced Exciton Diffusion using Phosphor Sensitization
Enhanced Exciton Diffusion using Phosphor Sensitization
Jan 12, 2010
University of Minnesota - Twin Cities

Enhanced Exciton Diffusion using Phosphor Sensitization

Russell Holmes
Graduate student Wade Luhman has demonstrated a route to enhance the short exciton diffusion length (LD) of organic semiconductors by combining fluorescent and phosphorescent materials into a single electron donating thin film.

Showing 1121 to 1130 of 1402