Monthly Archives: June 2007

Quasicrystalline Polymers

This issue’s topic is a paper by a japanese group of Kunichi Hayashida et al., Polymeric Quasicrystal: Mesoscopic Quasicrystalline Tiling in ABC Star Polymers Phys. Rev. Lett. 98, 195502 (2007). Observations of the first quasicrystals caused much of controversy in … Continue reading

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Nanopatterned magnets, zeptoliter pipette redux

June’07 issue of Physics today features an illuminating review by Chien, Zhu & Zhu of topic of Nanopatterned magnets. Much of it relates to the work done by nanomagnetism group at Argonne. Basic idea is that in >100nm pancake-flat (thickness … Continue reading

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Observation of the density minimum in deeply supercooled confined water

This week’s item is the recent PNAS paper Liu et al., “Observation of the density minimum in deeply supercooled confined water” PNAS 104, 9547 (2007), by a collaboration lead by S. H. Chen at MIT. By using Small Angle Neutron … Continue reading

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Coherent X-ray imaging and dynamics

This week’s journal club item is a Science magazine review article by Gaffney and Chapman on imaging of atomic structure and dynamics using coherent x-ray beams, ultrafast x-ray beams and the combination of the two. Even though most of the … Continue reading

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Search for Fermi surface, inhomogeneous gaps and sliding CDWs

In this week’s Nature there are two papers on high-Tc superconductors: Doiron-Leyraud et al. observe a Fermi surface signature in extremely pure underdoped YBCO samples – the Fermi surface area is small, pointing to a possibility of small enclosed pockets, … Continue reading

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