A study of possible superconducting phases of graphene has been constructed in detail. A realistic tight binding model, fit to ab initio calculations, accounts for the Lidecoration of graphene with broken lattice symmetry, and includes
 Publication Date:
 NSFPAR ID:
 10216202
 Journal Name:
 npj Quantum Materials
 Volume:
 5
 Issue:
 1
 ISSN:
 23974648
 Sponsoring Org:
 National Science Foundation
More Like this

Abstract s andd symmetry Bloch character that influences the gap symmetries that can arise. The resulting seven hybridized LiC orbitals that support nine possible bond pairing amplitudes. The gap equation is solved for all possible gap symmetries. One band is weakly dispersive near the Fermi energy along Γ →M where its Bloch wave function has linear combination of and$${d}_{{x}^{2}{y}^{2}}$$ ${d}_{{x}^{2}{y}^{2}}$d _{xy}character, and is responsible for and$${d}_{{x}^{2}{y}^{2}}$$ ${d}_{{x}^{2}{y}^{2}}$d _{xy}pairing with lowest pairing energy in our model. These symmetries almost preserve properties from a two band model of pristine graphene. Another part of this band, alongK → Γ, is nearly degenerate with uppers band that favors extendeds wave pairing which is not found in two band model. Upon electron doping to a critical chemical potentialμ _{1} = 0.22eV the pairing potential decreases, then increases until a second critical valueμ _{2} = 1.3 eV at which a phase transition to a distorteds wave occurs. The distortion ofd  or swave phases are a consequence of decoration which is not appear in two band pristine model. In the pristine graphene these phases convert to usuald wave or extendeds wave pairing. 
Abstract The shape of 3
d orbitals often governs the electronic and magnetic properties of correlated transition metal oxides. In the superconducting cuprates, the planar confinement of the orbital dictates the twodimensional nature of the unconventional superconductivity and a competing charge order. Achieving orbitalspecific control of the electronic structure to allow coupling pathways across adjacent planes would enable direct assessment of the role of dimensionality in the intertwined orders. Using Cu$${d}_{{x}^{2}{y}^{2}}$$ ${d}_{{x}^{2}{y}^{2}}$L _{3}and PrM _{5}resonant xray scattering and firstprinciples calculations, we report a highly correlated threedimensional charge order in Prsubstituted YBa_{2}Cu_{3}O_{7}, where the Prf electrons create a direct orbital bridge between CuO_{2}planes. With this we demonstrate that interplanar orbital engineering can be used to surgically control electronic phases in correlated oxides and other layered materials. 
Abstract
Site description. This data package consists of data obtained from sampling surface soil (the 07.6 cm depth profile) in black mangrove (Avicennia germinans) dominated forest and black needlerush (Juncus roemerianus) saltmarsh along the Gulf of Mexico coastline in peninsular westcentral Florida, USA. This location has a subtropical climate with mean daily temperatures ranging from 15.4 °C in January to 27.8 °C in August, and annual precipitation of 1336 mm. Precipitation falls as rain primarily between June and September. Tides are semidiurnal, with 0.57 m median amplitudes during the year preceding sampling (U.S. NOAA National Ocean Service, Clearwater Beach, Florida, station 8726724). Sealevel rise is 4.0 ± 0.6 mm per year (19732020 trend, mean ± 95 % confidence interval, NOAA NOS Clearwater Beach station). The A. germinans mangrove zone is either adjacent to water or fringed on the seaward side by a narrow band of red mangrove (Rhizophora mangle). A nearmonoculture of J. roemerianus is often adjacent to and immediately landward of the A. germinans zone. The transition from the mangrove to the J. roemerianus zone is variable in our study area. An abrupt edge between closedcanopy mangrove and J. roemerianus monoculture may extend for up to several hundred meters 
Abstract Ceriumbased ternary compounds CeNi_{2}Cd_{20}and CePd_{2}Cd_{20}do not exhibit longrange order down to millikelvin temperature range. Given the large separation between Ce ions which significantly reduces the superexchange interactions and vanishingly small Ruderman–Kittel–Kasuya–Yosida interaction, here we show that nodal superconductivity mediated by the valence fluctuations must be a ground state in these materials. We propose that the critical temperature for the superconducting transition can be significantly increased by applying hydrostatic pressure. We employ an extended periodic Anderson lattice model which includes the longrange Coulomb interactions between the itinerant electrons as well as the local Coulomb interaction between the predominantly localized and itinerant electrons to compute a critical temperature of the superconducting transition. Using the slaveboson approach we show that fluctuations mediated by the repulsive electron–electron interactions lead to the emergence of
d wave superconductivity. 
We generalize Hermite interpolation with error correction, which is the methodology for multiplicity algebraic error correction codes, to Hermite interpolation of a rational function over a field K from function and function derivative values. We present an interpolation algorithm that can locate and correct <= E errors at distinct arguments y in K where at least one of the values or values of a derivative is incorrect. The upper bound E for the number of such y is input. Our algorithm sufficiently oversamples the rational function to guarantee a unique interpolant. We sample (f/g)^(j)(y[i]) for 0 <= j <= L[i], 1 <= i <= n, y[i] distinct, where (f/g)^(j) is the jth derivative of the rational function f/g, f, g in K[x], GCD(f,g)=1, g <= 0, and where N = (L[1]+1)+...+(L[n]+1) >= C + D + 1 + 2(L[1]+1) + ... + 2(L[E]+1) where C is an upper bound for deg(f) and D an upper bound for deg(g), which are input to our algorithm. The arguments y[i] can be poles, which is truly or falsely indicated by a function value infinity with the corresponding L[i]=0. Our results remain valid for fields K of characteristic >= 1 + max L[i]. Ourmore »