The smallest possible magnets are the size of a single atom. Now scientists have reached the limits of optimisation of the tiny particles: they have created single atom magnets that are as strong and stable as is physically possible for the class of atoms used.
_Research May 09, 2014 By Fabio Bergamin ETH Zurich
Observed live with x-ray laser: electricity controls magnetism
_Paul Scherrer Institute... Read more »
Rau, I., Baumann, S., Rusponi, S., Donati, F., Stepanow, S., Gragnaniello, L., Dreiser, J., Piamonteze, C., Nolting, F., Gangopadhyay, S.... (2014) Reaching the Magnetic Anisotropy Limit of a 3d Metal Atom. Science. DOI: 10.1126/science.1252841
Northwestern University researchers are the first to develop a new solar cell with good efficiency that uses tin instead of lead perovskite as the harvester of light. The low-cost, environmentally friendly solar cell can be made easily using “bench” chemistry—no fancy equipment or hazardous materials.... Read more »
Hao, F., Stoumpos, C., Cao, D., Chang, R., & Kanatzidis, M. (2014) Lead-free solid-state organic–inorganic halide perovskite solar cells. Nature Photonics. DOI: 10.1038/nphoton.2014.82
Researchers at the University of Illinois at Urbana-Champaign use a printing process to assemble tiny cells into multilayer stacks for extraordinary levels of photovoltaic conversion efficiency.... Read more »
Sheng, X., Bower, C., Bonafede, S., Wilson, J., Fisher, B., Meitl, M., Yuen, H., Wang, S., Shen, L., Banks, A.... (2014) Printing-based assembly of quadruple-junction four-terminal microscale solar cells and their use in high-efficiency modules. Nature Materials. DOI: 10.1038/nmat3946
The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered cluster, which astronomers named HVGC-1, is now on a fast journey to nowhere. Its fate: to drift through the void between the galaxies for all time.
News release April 30, 2014 HARVARD-SMITHSONIAN CENTER FOR ASTROPHYSICS... Read more »
Nelson Caldwell, Jay Strader, Aaron J. Romanowsky, Jean P. Brodie, Ben Moore, Jurg Diemand, & Davide Martizzi. (2014) A Globular Cluster Toward M87 with a Radial Velocity . Cornell University Library. arXiv: 1402.6319v2
For the first time an international team of astronomers has measured circular polarisation in the bright flash of light from a dying star collapsing to a black hole, giving insight into an event that happened almost 11 billion years ago.
New insights into gamma-ray Burst afterglows-Niels Bohr Institute University of Copenhagen
Astronomers observe corkscrew nature of light from a distant black hole - Curtin University
Study of Gamma-Ray Bursts afterglow surprises scientists -University o........ Read more »
Wiersema, K., Covino, S., Toma, K., van der Horst, A., Varela, K., Min, M., Greiner, J., Starling, R., Tanvir, N., Wijers, R.... (2014) Circular polarization in the optical afterglow of GRB 121024A. Nature. DOI: 10.1038/nature13237
Scientists at Japan’s National Institute for Materials Science (NIMS) have created a novel superconductor, SrAuSi3, which contains gold as a principal constituent element.... Read more »
A new study from the University of Toronto Scarborough suggests the search for life on planets outside our solar system may be more difficult than previously thought.
The study, authored by a team of international researchers led by UTSC Assistant Professor Hanno Rein from the Department of Physical and Environmental Science, finds the method used to detect biosignatures on such planets, known as exoplanets, can produce a false positive result.
News release Apr 29, 2014 By Don Campbell Uni........ Read more »
Rein, H., Fujii, Y., & Spiegel, D. (2014) Some inconvenient truths about biosignatures involving two chemical species on Earth-like exoplanets. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1401816111
When monitoring nuclear reactors, the International Atomic Energy Agency (IAEA) has to rely on input given by the operators. In the future, antineutrino detectors may provide an additional option for monitoring.... Read more »
Haag, N., Gütlein, A., Hofmann, M., Oberauer, L., Potzel, W., Schreckenbach, K., & Wagner, F. (2014) Experimental Determination of the Antineutrino Spectrum of the Fission Products of U238. Physical Review Letters, 112(12). DOI: 10.1103/PhysRevLett.112.122501
The technology for the fission of Thorium fuel has brooded unnoticed for almost 50 years, and yet this technology has the potential to grant energy independence for the entire planet with negligable impacts, truly the next major breakthrough in human society. ... Read more »
Peter McIntyre, Akhdiyor Sattarov. (2010) Accelerator-driven thorium-cycle fission: Green nuclear power for the new millenium. Beyond the standard models of particle physics, cosmology and astrophysics. DOI: 10.1142/9789814340861_0011
Researchers at the Swiss Federal Institute of Technology in Lausanne (EPFL), Switzerland, have tapped into the electronic potential of molybdenite (MoS2) by creating diodes that can emit light or absorb it to produce electricity.... Read more »
Lopez-Sanchez, O., Alarcon Llado, E., Koman, V., Fontcuberta i Morral, A., Radenovic, A., & Kis, A. (2014) Light Generation and Harvesting in a van der Waals Heterostructure. ACS Nano, 8(3), 3042-3048. DOI: 10.1021/nn500480u
New research has found that doping perovskite halide solar cells with chlorine can improve efficiency due to lower recombination rates!... Read more »
Suarez, B., Gonzalez-Pedro, V., Ripolles, T., Sanchez, R., Otero, L., & Mora-Sero, I. (2014) Recombination Study of Combined Halides (Cl, Br, I) Perovskite Solar Cells. The Journal of Physical Chemistry Letters, 1628-1635. DOI: 10.1021/jz5006797
Scientists at the Polytechnic University of Catalonia (UPC) have demonstrated the relationship between the movement of wind turbines and the generation of lightning.... Read more »
Kashiwa Japan – A team of researchers led by Robert Quimby at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) has announced the discovery of a galaxy that magnified a background, Type Ia supernova thirtyfold through gravitational lensing. This is the first example of strong gravitational lensing of a supernova confirms the team’s previous explanation for the unusual properties of this supernova.
News release April 25, 2014 Kavli Institute for ........ Read more »
Quimby, R., Oguri, M., More, A., More, S., Moriya, T., Werner, M., Tanaka, M., Folatelli, G., Bersten, M., Maeda, K.... (2014) Detection of the Gravitational Lens Magnifying a Type Ia Supernova. Science, 344(6182), 396-399. DOI: 10.1126/science.1250903
Combining quantum mechanics and general relativity isn't as easy as addition. It seems Einsteins theory didn't like quantum mechanics any more than Einstein.... Read more »
Lee Sung-Sik. (2014) MAPPING THE ROAD TO QUANTUM GRAVITY. Perimeter Institute for Theoretical Physics. http://www.perimeterinstitute.ca/news/mapping-road-quantum-gravity
New plasmonic metamaterials that operate at high temperatures could radically improve solar cell performance and bring advanced computer data storage technology that uses heat to record information on a magnetic disk.... Read more »
Learning secrets for construction from the one and only Mantis shrimp.... Read more »
A computational study has shown that removal of residue from crop fields increases CO2 emissions... Read more »
Liska, A., Yang, H., Milner, M., Goddard, S., Blanco-Canqui, H., Pelton, M., Fang, X., Zhu, H., & Suyker, A. (2014) Biofuels from crop residue can reduce soil carbon and increase CO2 emissions. Nature Climate Change. DOI: 10.1038/nclimate2187
A possible cure for Alzheimer's may be on the way!... Read more »
Acharya S., Safaie B. M., Wongkongkathep P., Ivanova M. I., Attar A., Klarner F.-G., Schrader T., Loo J. A., Bitan G., & Lapidus L. J. (2014) Molecular Basis for Preventing α-synuclein Aggregation by a Molecular Tweezer. Journal of Biological Chemistry, 289(15), 10727-10737. DOI: 10.1074/jbc.M113.524520
A new study pins down a major factor behind the appearance of laser-induced high-temperature superconductivity in a promising copper-oxide material.... Read more »
Först, M., Tobey, R., Bromberger, H., Wilkins, S., Khanna, V., Caviglia, A., Chuang, Y., Lee, W., Schlotter, W., Turner, J.... (2014) Melting of Charge Stripes in Vibrationally Driven La1.875Ba0.125CuO4: Assessing the Respective Roles of Electronic and Lattice Order in Frustrated Superconductors. Physical Review Letters, 112(15). DOI: 10.1103/PhysRevLett.112.157002
Can quantum physics help to diagnose schizophrenia and depression? A paper just published in the Journal of Nervous and Mental Disease claims that a technique called ‘quantum resonance spectroscopy’ (QRS) can accurately diagnose various mental health problems. But is it quantum wizardry or magic quackery? According to the authors of the new paper, Zhang et […]The post The Mystery of “Quantum Resonance Spectroscopy” appeared first on Neuroskeptic.... Read more »
Zhang Y, Liu F, Shi J, Yue X, Zhang H, Du X, Sun L, & Yuan J. (2014) Exploratory quantum resonance spectrometer as a discriminator for psychiatric affective disorders. The Journal of nervous and mental disease, 202(4), 287-91. PMID: 24647211
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