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, 2021
Cuprate superconductors are key candidate materials toward high energy-efficient devices. Improving their growth rate and performance under magnetic fields are indispensable for achieving even higher efficiency.
Yue Wu +10 more
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Cuprate superconductors are key candidate materials toward high energy-efficient devices. Improving their growth rate and performance under magnetic fields are indispensable for achieving even higher efficiency.
Yue Wu +10 more
semanticscholar +1 more source
Physical Review B, 1993
It is shown that the usual three-center cation-anion-cation model or fourth-order pertrubation expression (in the Cu-O hopping parameter ${\mathit{t}}_{\mathit{p}\mathit{d}}$) does not give a useful (even qualitative) estimate for the superexchange J, even though, by coincidence, it predicts a magnitude that is reasonable.
, Eskes, , Jefferson
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It is shown that the usual three-center cation-anion-cation model or fourth-order pertrubation expression (in the Cu-O hopping parameter ${\mathit{t}}_{\mathit{p}\mathit{d}}$) does not give a useful (even qualitative) estimate for the superexchange J, even though, by coincidence, it predicts a magnitude that is reasonable.
, Eskes, , Jefferson
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Imaging the energy gap modulations of the cuprate pair-density-wave state
Nature, 2020The defining characteristic1,2 of Cooper pairs with finite centre-of-mass momentum is a spatially modulating superconducting energy gap Δ(r), where r is a position.
Z. Du +8 more
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The Stannyl-Cupration and Silyl-Cupration of Propargylic Sulphides
Synlett, 1992In the addition of stannyl- and silylcupration reagents to propargylic sulphides, the dependence of the regiochemistry of the adducts on the reaction conditions as well as on the nature of the Group 14 element in the metallo-metallation reagent, coupled with the possibility of a metal-mediated desulphuration path, can be exploited into a flexible ...
Casarini Antonella +6 more
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The silyl-cupration and stannyl-cupration of allenes
Tetrahedron, 1989Abstract The stoichiometric silyl-cupration of allene 7, followed directly by treating the intermediate cuprate with a proton, with a range of carbon electrophiles, and with chlorine gives the vinylsilanes 8–13. Alternatively, when iodine is the electrophile, the product is the vinyl iodide 16. This can then be metallated and treated with a proton or
Ian Fleming +4 more
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Fermi surface transformation at the pseudogap critical point of a cuprate superconductor
Nature Physics, 2020The nature of the pseudogap phase remains a major puzzle in our understanding of cuprate high-temperature superconductivity. Whether or not this metallic phase is defined by any of the reported broken symmetries, the topology of its Fermi surface remains
Yawen Fang +13 more
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Superexchange anisotropy in the cuprates
Physical Review B, 1994The single-bond superexchange anisotropy resulting from the 2${\mathit{p}}_{\mathrm{\ensuremath{\sigma}}}$ and the 2${\mathit{p}}_{\mathit{z}}$ orbitals on the ligand ion of the cuprates is analyzed for a general case in which the oxygen octahedra surrounding each copper rotate around a general axis in the ${\mathrm{CuO}}_{2}$ plane.
, Entin-Wohlman, , Aharony, , Shekhtman
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Direct Cupration of Fluoroform
Journal of the American Chemical Society, 2011We have found the first reaction of direct cupration of fluoroform, the most attractive CF(3) source for the introduction of the trifluoromethyl group into organic molecules. Treatment of CuX (X = Cl, Br, I) with 2 equiv of MOR (M = K, Na) in DMF or NMP produces novel alkoxycuprates that readily react with CF(3)H at room temperature and atmospheric ...
Alessandro, Zanardi +4 more
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On the Reaction Mechanism of “Higher-Order Cuprate”, Alias “Lipshutz Cuprate”
Bulletin of the Chemical Society of Japan, 2004Abstract An organocuprate reagent of the R2Cu(CN)Li composition introduced by Lipshutz has been frequently used in organic synthesis because its reactivity in some reactions is higher than that of the standard Gilman reagent R2CuLi. The higher reactivity of the Lipshutz cuprate was once ascribed to a dianionic tri-coordinated copper(I) (“
Eiichi Nakamura, Naohiko Yoshikai
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Electronic localization in the cuprates
Physical Review B, 1996A simplified three-band model for the cuprates is proposed which reproduces three qualitatively interesting features of the electronic structure of these materials. These are the intense satellite peak observed in the photoemission spectrum, the antiferromagnetic coupling of Cu 3{ital d} spins, and the tendency toward localization of doped holes, as ...
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