Oak Ridge Today

Four ORNL researchers elected fellows of American Physical Society

Posted at
By Leave a Comment

Jaime Fernandez-Baca

Jaime Fernandez-Baca (Photo courtesy ORNL)

Four researchers from Oak Ridge National Laboratory have been elected fellows of the American Physical Society, one of the nation’s top professional organizations for scientists.

Jaime Fernandez-Baca, Sergei Kalinin, Mark Lumsden, and Thomas Maier were selected for the honor by the APS Council of Representatives. They will be formally recognized at the APS’s March meeting.

Fernandez-Baca, a distinguished research staff member in the Quantum Condensed Matter Division in ORNL’s Neutron Science Directorate, was recognized by the APS Division of Materials Physics “for seminal neutron scattering studies of magnetic materials, especially the spin and lattice dynamics of colossal magnetoresistive manganites.”

Fernandez-Baca’s research is performed mainly at ORNL’s High Flux Isotope Reactor, where he is the lead for the Triple Axis Spectroscopy group. His expertise is in the study of the magnetic ordering and spin dynamics of complex oxides and related alloys using neutron scattering techniques.

He was the recipient of the International Atomic Energy Agency fellowship, the DOE Office of Science Outstanding Mentor Award (2008), and the Neutron Scattering Society of America Distinguished Service Award (2014). [Read more…]

ORNL’s Kalinin awarded Royal Microscopical Society medal

Posted at
By Leave a Comment

Sergei Kalinin

With scanning probe microscopy, ORNL’s Sergei Kalinin explores nanoscale phenomena in new materials for energy and data storage to accelerate their discovery, design, and deployment. (Photo courtesy ORNL) 

 

Materials scientist Sergei Kalinin of the U.S. Department of Energy’s Oak Ridge National Laboratory has been awarded the inaugural Medal for Scanning Probe Microscopy, or SPM, by the Royal Microscopical Society, or RMS.

Kalinin is director of ORNL’s Institute for Functional Imaging of Materials, which melds capabilities in imaging, high-performance computing, and materials theory to guide the design of advanced materials for energy applications. He is also a theme leader at the  Center for Nanophase Materials Sciences, a DOE Office of Science User Facility at ORNL, and an adjunct associate professor of materials science and engineering at the University of Tennessee in Knoxville. [Read more…]

ORNL finding goes beyond surface of oxide films

Posted at
By Leave a Comment

Oxide Figure

This figure shows the spectroscopic measurement (current as a function of voltage) and this as a function of temperature. (Reproduced by permission of The Royal Society of Chemistry)

Better batteries, catalysts, electronic information storage and processing devices are among potential benefits of an unexpected discovery made by Oak Ridge National Laboratory scientists using samples isolated from the atmosphere.

Researchers at the U.S. Department of Energy lab learned that key surface properties of complex oxide films are unaffected by reduced levels of oxygen during fabrication—an unanticipated finding with possible implications for the design of functional complex oxides used in a variety of consumer products, said Zheng Gai, a member of DOE’s Center for Nanoscale Materials Sciences at ORNL.

The findings are detailed in a paper published in Nanoscale. [Read more…]