Read more in the Chronicle.

Unsymmetrized FS map for SrRuO3 at T ¼ 20 K integrated within EF  5 meV,
along with E vs kx, ky spectra illustrating the underlying band structure.

Their work showed that strong electron-boson interactions have an important role in the large mass renormalization in SrRuO3. Local magnetic moments in this ruthenate also play an important role in its properties.  Contributing to the results were physics PhD candidate Daniel Shai, John Harter, Eric Monkman and Bulat Burganov.

To read the full article in Physical Review Letters, click here.

Richardson’s obituary in the Cornell Chronicle can be found here.

A 48 nm×48 nm topographic image of the Ca-122 surface

Scientists studying high-temperature superconductivity know that the introduction of dopant atoms leads to the development of superconductive behavior.  However there is a lack of experimental work showing what these dopants do to the atomic-scale electronic structure of superconductive materials.  Professor of physics J.C. Séamus Davis has now imaged the effects of these impurity atoms.  His work is published in the February 17 edition of Nature Physics.

Davis’ results show regular pattern of anisotropic scattering of quasiparticles in the substrate that is proportional to the dopant density.

To read the full article in Nature Physics, click here.

View story in the press:

NBC, National Geographic, Popular Science, New Scientist, The Atlantic, The Chicago Reader, The Huffington Post (written by co-author J.L.S.)

Photo credit: Ulrike Biets

The group was observing the properties of strontium-lanthanum cuprates, nicknamed the “infinite layer” when doped with extra electrons. When cooled the electrons undergo a phase transition and become superconducting, which means electrons can flow freely through them without resistance.

Scientists have previously studied strontium-lanthanum cuprates that are hole-doped – meaning electrons are removed from the material. It was assumed that the materials should respond in the same way to hole doping and electron doping. Shen’s results now show this needs to be studied further.

To read the paper in Physical Review Letters, click here.

To read more about Shen’s work in the Cornell Chronicle, click here.

December, 2012: Cornell researchers, including KIC members Paul McEuen and Michal Lipson, have now demonstrated synchronization at the nanoscale, using nothing but light. This research was published on December 5 in Physical Review Letters. Read the full Cornell Chronicle article here.

Sol Gruner’s work on x-ray detectors is the featured cover article in this month’s Physics Today. In the article Prof Gruner outlines the development of x-ray detectors as guided by experimental opportunity—or, more specifically, the need for enhanced resolution in some aspects of the measurement.

View Article »

Find out more at the Chronicle: http://www.news.cornell.edu/stories/Dec12/grapheneCool.html

And the full Nature Physics article is available at http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys2493.html

Prof. of physics Rob Thorne stepped in to remedy these issues by creating new plates and tools for this work.  His patent was reported in the December 2012 issue of Scientific American.  Thorne’s new tools have curvature which makes them thin yet strong and his plates replace wells with micropatterned film.

For more information from Scientific American, click here.