Superconducting Topological Insulators
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 ARPES studies show that it's possible to introduce superconductivity into a topological insulator. The resulting novel properties, such as relativistic electrons and quantum memory, may in the future provide the basis for a whole new type of computer. Read more... Contact: Andrew Wray and M. Zahid Hasan |
ALS Reveals New State of Matter
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 ALS user groups from Princeton and Stanford have been making waves this past year with several high-profile papers and extensive news coverage of their work on a new state of matter embodied by "topological insulators," materials that conduct electricity only on their surfaces. (This highlight was originally published in the 2009 issue of ALS Spectrum.) Read more...Contact: Andrew Wray and M. Zahid Hasan |
| Topoisomerase II Structure Suggests Novel DNA Cleavage Mechanism |
 Type II topoisomerases regulate DNA supercoiling and separate interlocked chromosomes. These enzymes are also exploited clinically as targets of antibiotics and anticancer therapeutics. Researchers at ALS Beamline 8.3.1 have created a new molecular model of type II topoisomerase linked to DNA, providing evidence for the chemical mechanism of DNA cleavage and rejoining. Read more... Contact: James Berger |
An App for Synchrotron Users
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 The X-ray Utilities app is a reference utility application for the iPhone, iTouch, and iPad. Perfect for synchrotron scientists and other x-ray users it includes all the information you wish you had easy access to at a beamline: Status, lines, absorption, and ion chambers.
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| ALS Users Elected APS and AAAS Fellows |
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  Musahid Ahmed and several other ALS users including Harald Ade, Pupa Gilbert, Zi Q. Qiu, and Craig Taatjes were elected as Fellows to the American Physical Society. Also, ALS user Charles Fadley was elected as a AAAS Fellow. See a full list of this year's APS Fellows and of AAAS Fellows.
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| Peter Fischer Named Magnetics Society Distinguished Lecturer |
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 Peter Fischer (CXRO) has been named as a Magnetics Society Distinguished Lecturer for 2011. His current research is focused on the use of polarized synchrotron radiation in nanomagnetism. For his achievement of "hitting the 10nm resolution milestone with soft X-ray microscopy" he shared the ALS's Klaus Halbach Award in 2010.
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 UEC Corner |
New UEC Members in 2011
 The New Year has begun and 2011 promises challenges as well as the opportunity to do cutting-edge science at the Advanced Light Source. As we move forward I want to reiterate that the Users' Executive Committee continues to work with ALS management to represent your interests as users. On multiple occasions during 2010 we worked with director Roger Falcone and his team to shape policy changes in a way that minimized negative impacts, and provided some substantive positive impacts to users. This year also brings four newly-elected UEC members with diverse backgrounds. Please join me in welcoming your new representatives:
- Yves Idzerda, Department of Physics, Montana State University
- Jeff Kortright, Material Science Division, Berkeley Lab
- Corie Ralston, Physical Biosciences Division, Berkeley Lab
- Gyorgy Snell, Takeda San Diego
All users are welcome to contact their UEC representatives to raise issues of concern relating to their own research, or to alert us to issues facing our whole community.
Contact: David Osborn
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| Operations Update |
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ALS Director Roger Falcone welcomes staff and users back for another year, reviewing last year's successes and exciting new projects. 
