Department of Physics
NEWS AND EVENTS
2013-2014 GMAG PhD Dissertation Research Award
Congratulations to Chetan Dhital, a Ph.D. student working with Professor Stephen Wilson, who was awarded the 2013-2014 GMAG PhD Dissertation Research Award from the American Physical Society (APS). This prestigious award is given annually to a maximum of two students who have conducted outstanding dissertation research in the field of magnetism. The award includes a $500 cash prize and an invited talk at the APS March Meeting, which is in Denver in 2014.
Chetan's dissertation work focused on studying magnetic behavior in two different classes of intermediate bandwidth quantum materials. The first is a series of iridium oxide compounds with novel electronic behavior driven by the interplay of spin-orbit coupling and electron-electron correlation effects, and the second class is the new class of iron-based high temperature superconductors. The results of Chetan's research have been published in the APS journals Physical Review Letters and Physical Review B.
An international team of scientists led by BC Physics Assoc. Prof. Vidya Madhavan and including Asst. Prof. Stephen Wilson have reported the discovery of coexisting massless and massive "Dirac Fermions" in a new class of materials called topological crystalline insulators. This work will be published in Science and was released in the Aug 29th edition of the advanced online publication 'Science Express' (http://www.sciencemag.org/content/early/2013/08/28/science.1239451.full). The findings are also described at http://www.eurekalert.org/pub_releases/2013-08/bc-ntc082913.php. Former post-doctoral associate Dr. Yoshinori Okada was the lead experimentalist in this work along with BC physics graduate students Daniel Walkup, Wenwen Zhou and Chetan Dhital.
69 highly acknowledged researchers, 31 full, 18 external, and 20 honorary members have been elected to the Hungarian Academy of Sciences at the triennial election held on the first day of the General Assembly in June 2013. The Hungarian Academy of Sciences (MTA) is the principal scientific body of Hungary. Created by public law, it is committed to the “advancement, shaping and serving of science”. According to its Statutes “Eligible to become External Members are scholars and scientists living abroad… who cultivate their fields of science on a well-recognized, extremely high and creative level, and maintain close relations with science and scholarship in Hungary.”
Professor Gabor J. Kalman, Distinguished Research Professor of the Physics Department at Boston College has been inducted as a newly elected External Member. His special fields are listed as many particle physics, plasma physics, strongly coupled Coulomb systems, relativistic many body systems, complex plasmas.
According to the citations “He has developed a unique approach for the analysis of charged particle systems in the liquid state (Quasilocalized Charge Approximation, QLCA), which was applied to demonstrate that an optic mode develops in charged bilayer liquids. His name is associated with the development of quadratic response functions, the description of the role of impurity ions in plasma and the study of various instabilities.”
Prior to their election the new Members had received the required 50% majority of votes of their respective scientific sections. The Academy currently has 193 External Members from all disciplines of science.
First National Science Foundation CAREER Workshop
Associate Professor Vidya Madhavan was the recipient of a grant from the National Science Foundation this spring, which was used to organize and co-chair the first NSF CAREER workshop (Faculty Early Career Development). The primary objective of the workshop was to assist CAREER awardees in continuing their path to research leadership in their fields. A report of the event is available at: http://www.bc.edu/sites/nsfworkshop/NSF_CAREER_Workshop/Reports.html
New Insight into Thermal Transport
Professor David Broido and collaborators have predicted that an unlikely material, cubic boron arsenide, should have an extraordinarily high thermal conductivity on par with that of diamond, long known to be the best conductor of heat. The finding gives new insight into the nature of thermal transport and may open new opportunities for passive cooling of microelectronics. The paper, "First-Principles Determination of Ultrahigh Thermal Conductivity of Boron Arsenide: A Competitor for Diamond?", was featured as an Editor’s Suggestion in the journal Physical Review Letters It has also been featured in a Viewpoint article by the American Physical Society as well as an article on AAAS EurekAlert.
Prof. Willie J. Padilla and researchers in his lab recently reported a breakthrough in efforts to create accessible and effective THz imaging. Using both optical and electronic controls, the team developed a single-pixel imaging technique that uses a coded aperture to quickly and efficiently manipulate stubborn THz waves, according to a recent report in the journal Optics Express.
Seminars and Colloquia
The department hosts many seminars and colloquia throughout the school year. View calendar
Associate Professor Vidya Madhavan’s lab focuses on experimental studies of correlated electron systems and magnetic systems with low temperature scanning tunneling microscopy, spectroscopy, and spin-polarized scanning tunneling microscopy.