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Robert J. Birgeneau

Researcher at Lawrence Berkeley National Laboratory

Publications -  628
Citations -  23804

Robert J. Birgeneau is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Neutron scattering & Phase transition. The author has an hindex of 78, co-authored 587 publications receiving 22686 citations. Previous affiliations of Robert J. Birgeneau include Chalk River Laboratories & Tohoku University.

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High-resolution x-ray and light-scattering study of critical behavior associated with the nematic—smectic- A transition in 4-cyano-4′-octylbiphenyl

TL;DR: In this paper, a high-resolution x-ray study of the mass-density fluctuations and a light-scattering study of bend-mode-director fluctuations associated with the nematic-smectic-$A$ phase transition in 4-cyano-4-ensuremath{'}-octylbiphenyl (8CB) was carried out.
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Successive antiferromagnetic phase transitions in single-crystal La2CoO4.

TL;DR: In contrast to the S = 1/2 Heisenberg system La/sub 2/CuO/sub 4/, well-defined two- dimensional Ising critical phenomena are observed and the two-dimensional spin correlations at T>T/sub N/ are almost entirely elastic.
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Neutron scattering study of the lattice dynamical phase transitions in KMnF3

TL;DR: In this article, the authors studied the structural phase transition in KMnF3 at 186.6°K and 91.5°K, and found that the soft phonon mode intensities diverge in a manner that is typical of a second order phase transition.
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Critical behavior of a site-diluted three-dimensional Ising magnet

TL;DR: In this article, the site-diluted three-dimensional Ising antiferromagnet Fe/sub 1-x/Zn/sub x/F/sub 2/ has been studied with the use of neutron scattering and linear birefringence techniques.
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High-resolution x-ray-scattering study of the commensurate-incommensurate transition of monolayer Kr on graphite

TL;DR: In this article, a detailed high-resolution, x-ray-scattering study of the commensurate-incommensurate transition of Kr on exfoliated graphite powder is presented.