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The motion of charge carriers in ruthenates is imaged using a technique known as Angle Resolved Photoemission Spectroscopy (ARPES).
The motion of charge carriers in ruthenates is imaged using a technique known as Angle Resolved Photoemission Spectroscopy (ARPES).
Mar 19, 2017
Cornell University

Simple stretch “flips” the sign of charge carriers

Electricity is the flow of charged particles through a material, such as a wire — a process that resembles a river of water molecules flowing through a canyon. But are the charged particles positive or negative?
Down the rabbit hole: Sinking electrons in a Weyl sea
Down the rabbit hole: Sinking electrons in a Weyl sea
Oct 27, 2016
Princeton University

Down the rabbit hole: Sinking electrons in a Weyl sea

H. Inoue, Princeton University A. Gyenis, Princeton University Z. Wang, Princeton University J. Li, Princeton University S. Oh, Princeton University S. Jiang, Princeton University N. Ni, Princeton University B. A. Bernevig, Princeton University A. Yazdani, Princeton University Inoue, et al., Science 351, 1184 (2016)

Weyl semimetals are newly discovered topological electronic materials in which surface electrons (Fermi arcs) are topologically connected with those of the bulk. Princeton researchers have found experimental evidence that electrons can transverse the bulk through the special momentum states, called Weyl points, moving between opposing surfaces.
Single photon bound states in microwave photonic crystals
Single photon bound states in microwave photonic crystals
Oct 27, 2016
Princeton University

Single photon bound states in microwave photonic crystals

Andrew Houck, Princeton University Reference: Yanbing Liu and Andrew Houck, “Quantum Electrodynamics Near a Photonic Bandgap,” arXiv:1603.02998, submitted (2016).

Photonic crystals provide an extremely powerful toolset for manipulation of optical dispersion and density of states. Princeton researchers' recent work opens exciting prospects for engineering long-range spin models in the circuit QED architecture, and new opportunities for dissipative quantum state engineering.
Glass transition of irreversibly adsorbed nanolayers
Glass transition of irreversibly adsorbed nanolayers
Electron spin coherence of shallow donors in germanium
Electron spin coherence of shallow donors in germanium
MAPLE of Polymer Films for Morphology Control (IRG-2)
MAPLE of Polymer Films for Morphology Control (IRG-2)
Oct 21, 2016
Princeton University

MAPLE of Polymer Films for Morphology Control

Craid Arnold, Princeton Univesity Lynn Loo, Princeton University Rodney Priestley, Princeton University

Princeton researchers found that deposition temperature can significantly affect the stability of liquid phase PEO in MAPLE (matrix assisted pulsed laser evaporation)-deposited films, which results in different crystallization kinetics.
Successful synthesis of novel MOF compositions
Successful synthesis of novel MOF compositions
Oct 17, 2016
Colorado School of Mines

Successful synthesis of novel MOF compositions

M.A. Carreon, B. G. Trewyn, A. Sellinger

Successful synthesis of novel MOF compositions employing “in-house made” organic linkers.  These MOF compositions  displayed superior catalytic ability in the conversion of fatty acid methyl esters  (FAMEs) into liquid fuel hydrocarbons. Synthesis of microporous carbon membranes derived from metal organic frameworks for natural gas purification. The resultant membranes displayed separation ability for CH4/C3H8 gas mixtures, relevant to natural gas purification.   
Surface Patterning of Nanoparticles with Polymer Patches
Surface Patterning of Nanoparticles with Polymer Patches
Sep 19, 2016
Duke University

Surface Patterning of Nanoparticles with Polymer Patches

Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada Rachelle M. Choueiri, Elizabeth Galati, Héloïse Thérien-Aubin, Anna Klinkova, Egor M. Larin, Ana Querejeta-Fernández & Eugenia Kumacheva Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA Lili Han, Huolin L. Xin & Oleg Gang Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China Lili Han Institute of Macromolecular Compounds of the Russian Academy of Sciences, Saint Petersburg, 199004, Russia Ekaterina B. Zhulina Saint Petersburg National University of Informational Technologies, Mechanics and Optics, Saint Petersburg, 197101, Russia Ekaterina B. Zhulina Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA Michael Rubinstein Institute of Biomaterials and Biomedical Engineering, University of Toronto, 4 Taddle Creek Road, Toronto, Ontario M5S 3G9, Canada Eugenia Kumacheva Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada Eugenia Kumacheva

We demonstrate nanoparticle surface patterning, which utilizes thermodynamically driven segregation of polymer ligands from a uniform polymer brush into surface pinned micelles following a change in solvent quality.
RT-MRSEC Graduate Fellow Launches Award-Winning Startup Company
RT-MRSEC Graduate Fellow Launches Award-Winning Startup Company
Sep 14, 2016
Duke University

RT-MRSEC Graduate Fellow Launches Award-Winning Startup Company

Nick Kirby, Wyatt Shields, Wes Day - Duke University  

A team of Duke graduate students has been named one of five companies receiving a total of $250,000 through the NC IDEA Foundation - an organization committed to supporting entrepreneurial business innovation and economic advancement in North Carolina.
Coalescence of two water drops on a polystyrene particle leads to the launching of the particle away from the supporting substrate. Image source: Roger Chavez, Duke University
Coalescence of two water drops on a polystyrene particle leads to the launching of the particle away from the supporting substrate. Image source: Roger Chavez, Duke University
Sep 14, 2016
Duke University

Self-Propelled Bouncing Droplets Remove Contaminants

Roger L. Chavez, Duke University Fangjie Liu, Duke University James J. Feng, University of British Columbia Chuan-Hua Chen, Duke University

Researchers at Duke University and the University of British Columbia are exploring whether surfaces can shed dirt without the use of fragile superhydrophobic coatings.