165,377 research outputs found
J. Crabtree, Toledo, Ohio [approximately 1880]
Photograph of J. Crabtree. The photo dates around 1880. Terms associated with the photograph are: Crabtree, J. | Man | Suits (Clothing) | Bow ties | Beards | Beards--1880-1890. | Toledo, Ohi
C. J. Crabtree, Councilman (wholesale fruit dealer), Salt Lake City
Cartoon portrait of C. J. Crabtree, wholesale fruit dealer and city councilman in Salt Lake City, Utah, in the early 20th centuryArtwork from the book Just for Fun: Cartoons and Caricatures of Men in Utah published in 1906 by E. A. Thompson, Press of the F. W. Gardiner Company. No artist signatur
Appendix – Supplemental material for Judging Judicial Review in the American States
Supplemental material, Appendix for Judging Judicial Review in the American States by Charles Crabtree and Michael J. Nelson in State Politics & Policy Quarterly</p
[Report to Chief J. E. Curry, by an unknown author #1]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Toroidal quantum states in molecular spin-frustrated triangular nanomagnets with weak spin-orbit coupling: Applications to molecular spintronics
We theoretically investigate the ground-state spin texture and spin transport properties of triangular rings with on-site spins Sq=12(q=1-3). In the limit of strong antiferromagnetic exchange coupling and weak spin-orbit coupling, we find it is possible to prepare a noncollinear degenerate ground state with a zero magnetic moment and a nonzero toroidal moment τ=gμBqrq×Sq, aligned along the C3-symmetry axis. These pure toroidal states can be prepared: (i) within the fourfold degenerate spin-frustrated ground state even without any spin-orbit coupling; (ii) within the ground Kramers doublet resulting from weak spin-orbit splitting of the fourfold degenerate frustrated manifold via Dzyaloshinskii-Moriya antiferromagnetic exchange coupling. We also investigate the relationship between toroidal states and chiral spin states, characterized by the eigenvalues of the scalar spin chirality operator χ=43Ŝ1·Ŝ2×Ŝ3, and find that, since [τ,χ]≠0, it is not possible to prepare states that are both toroidal and chiral simultaneously. Finally, by setting up a quantum transport model in the Coulomb blockade regime, we find that a spin current injected through a spin-polarized source electrode into the triangle is partially reversed upon scattering with the molecular toroidal states. This spin-switching effect is, in fact, a signature of molecular spin-transfer torque, which can be harnessed to modify the nonequilibrium populations of the +τ- and -τ-toroidal states, thus, to induce a net toroidal magnetization in the device using a spin current
Bioarkeologia Gizarte Arkeologia bezala: Pam J. Crabtree irakaslearekin elkarrrizketa
Entrevist
Bioarkeologia Gizarte Arkeologia bezala: Pam J. Crabtree irakaslearekin elkarrrizketa
Entrevist
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