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Home   About   Membership   Conference   Public Policy   Job Board    April 13, 2011
  National Society of Black Physicists    African Physical Society   South African Institute of Physics    
The common origin of superconductivity in iron-based compounds
Materials Today    Share   Share on FacebookTwitterShare on LinkedinE-mail article
Beyond their superconductivity, iron pnictides (parent compound CaFe2As2) and the iron chalcogenides (parent Fe1+yTe) have important features in common, such as their band structures and magnetic excitations. A team of researchers from the U.S., China and the U.K. have found that even though the nearest neighbor exchange couplings between chalcogenide and pnictide atoms are different, the next nearest neighbor exchange couplings are similar. This implies that the key magnetic exchange thought to be responsible for high temperature superconductivity may occur here rather than in adjacent atoms as predicted by first principles density functional calculations. More

Follow the African Physical Society, the National Society of Black Physicists and the South African Institute of Physics on Twitter, @Africanphysics, @Blackphysicists and @SAIPhysics.

Africa tweeting for science
SciDev.Net    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Africa's mobile Internet boom could revolutionize the way scientists, policymakers and the public interact, says Linda Nordling. Most Africans access the Internet through their mobile phones. The ITU reports that usage of the mobile Internet overtook fixed connections in Africa in the last quarter of 2009. This development will open up new lines of communication between scientists, policymakers and the public. More

ICTP releases book on design of mobile applications for science
ICTP Science Dissemination Unit    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The Science Dissemination Unit of the Abdus Salam International Centre for Theoretical Physics has released the primer open book on "m-Science: Sensing, Computing and Dissemination." The book was written by experts in an effort to engage the scientific community, engineers and scholars worldwide in the design, development and deployment of the newest mobile applications. The goal is to create awareness on the huge possibilities of mobile science as well as to motivate a new generation of learners, scholars and scientists to participate in the challenges of the rapidly developing new field of m-Science. More

Open access gets more readers, but not more citations
SciDev.Net    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A paper published March 30 in The FASEB Journal analyzed more than 3,000 articles from 36 journals. It found that although open access papers are downloaded more, they are not cited by other scientists any more than paid-for articles. More

Physicists discover new way to visualize warped space and time
EurekAlert    Share    Share on FacebookTwitterShare on LinkedinE-mail
When black holes slam into each other, the surrounding space and time surge and undulate like a heaving sea during a storm. This warping of space and time is so complicated that physicists haven't been able to understand the details of what goes on — until now. Physicists at Caltech, Cornell University, and the National Institute for Theoretical Physics in South Africa have developed conceptual tools they've dubbed tendex lines and vortex lines. More

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2 dying stars to be reborn as 1
ScienceDaily    Share    Share on FacebookTwitterShare on LinkedinE-mail article
White dwarfs are dead stars that pack a sun's-worth of matter into an Earth-sized ball. Astronomers have just discovered an amazing pair of white dwarfs whirling around each other once every 39 minutes. This is the shortest-period pair of white dwarfs now known. Moreover, in a few million years they will collide and merge to create a single star. More

The African Astronomical Society is on Twitter!

Do plants have magnetic fields?
UC Berkeley    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Using some of the most sensitive magnetic detectors available, physicists at the University of California, Berkeley, tried to measure magnetic fields around a titan arum, the world's largest flower. Though the interference from local BART trains and traffic bedeviled the experiment, and their ultimate failure to detect a magnetic field, they did establish that the plant generated no magnetic field greater than one-millionth the strength of the Earth's magnetic field. More

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Quantum interference of large organic molecules
Nanowerk News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A quantum interference experiment on a molecular system of more than 400 atoms has set a new record for the verification of the quantum properties of nanoparticles. In addition, an important aspect of the famous thought experiment known as "Schroedinger's cat" was probed. The experiment shows that even complex systems, with more than 1,000 internal degrees of freedom, can be prepared in quantum states that are sufficiently well isolated from their environment to avoid decoherence and to show almost perfect coherence. More

Australian photonics center aims at vast improvements in Internet
IT Wire    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Australia has officially kicked of a six year $23.8 million research program into photonic chip technology at the Australian Research Council's Centre of Excellence for Ultrahigh bandwidth Devices for Optical Systems. CUDOS has the potential to revolutionize optical communications. CUDOS is a collaboration between seven Australian universities with photonic research programs. More

Florida A&M University researchers, NSBP members, awarded patent for Cerenkov Detector
The Famuan    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Professor Eliott Treadwell and his former graduate student, Dr. Ely Leon, have been awarded a U.S. patent for their Threshold Cerenkov Detector with Radial Segmentation. The detector provides a method of providing nuclear particle identification for e, mu, pi and p of up to about 4 to about 5 GeV/c. More

National Society of Black Physicists jobs board postings
NSBP    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Physics Faculty - 9 Month Appointment
Assistant Professor - Physics
APS Scholarship Program for Minority Undergraduate Physics Majors
Assistant Professor, Energy Resources Engineering
Assistant or Associate Professor - Astronomy / Astrophysics
HBCU STEM Fellowship Program
REU Program and University of Houston
Research Experience for Undergraduates Fellowship in PHYSICS
Research Experience for Undergraduates Fellowship in PHYSICS
Student Researcher
National Astrophysics and Space Science Program
Visiting Professor
Postdoctoral Research Associate Positions
Visiting Professor Positions

Latest research from Reviews of Modern Physics
Reviews of Modern Physics    Share    Share on FacebookTwitterShare on LinkedinE-mail article

Carrier dynamics in semiconductors studied with time-resolved terahertz spectroscopy

Theoretical perspective on the glass transition and amorphous materials

Microscale acoustofluidics: Microfluidics driven via acoustics and ultrasonics

Colloquium: Physics of optical lattice clocks

Resonant inelastic X-ray scattering studies of elementary excitations

Latest research from Science and Technology of Advanced Materials
IOP Journal    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Characterization of magnetic domain walls using electron magnetic chiral dichroism

High-mobility solution-processed copper phthalocyanine-based organic field-effect transistors

Tuning optical properties of poly(3-hexylthiophene) nanoparticles through hydrothermal processing

Experimental study of the Ca–Mg–Zn system using diffusion couples and key alloys

Atomic switches: atomic-movement-controlled nanodevices for new types of computing

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