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- Carnegie Institution for ScienceUS218 papers
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5 papers · 1 filter
Liquid-liquid transition in supercooled silicon determined by first-principles simulation
P. Ganesh, M. Widom
First principles molecular dynamics simulations reveal a liquid-liquid phase transition in supercooled elemental silicon. Two phases coexist below . The low densi…
Itinerant spin excitations near the hidden order transition in URu2Si2
J. A. Janik, H. D. Zhou, Y. -J. Jo +12
By means of neutron scattering we show that the high-temperature precursor to the hidden order state of the heavy fermion superconductor URuSi exhibits heavily damped i…
Optical Evidence for Mixed Phase Behavior in Manganites
P. Gao, T. A. Tyson, Z. Liu +2
Synchrotron infrared measurements were conducted over the range 100 to 8000 cm-1 on a self-doped LaxMnO3-d (x~~0.8) film. From these measurements we determined the conductivity, th…
Indigenous amino acids in primitive CR meteorites
Z. Martins, C. M. O'D. Alexander, G. E. Orzechowska +2
CR meteorites are among the most primitive meteorites. In this paper, we report the first measurements of amino acids in Antarctic CR meteorites, two of which show the highest amin…
Uncovering a pressure-tuned electronic transition in BiSrYCu2O8 using Raman scattering and x-ray diffraction
T. Cuk, V. Struzhkin, T. P. Devereaux +5
We report pressure tuned Raman and x-ray diffraction data of Bi1.98Sr2.06Y0.68Cu2O8 revealing a critical pressure at 21 GPa with anomalies in six physical quantities: electronic Ra…