Showing 2011Show all

184 papers · 1 filter

nucl-ex2011★ 2 cited

Alpha Backgrounds for HPGe Detectors in Neutrinoless Double-Beta Decay Experiments

R. A. Johnson, T. H. Burritt, S. R. Elliott +3

The Majorana Experiment will use arrays of enriched HPGe detectors to search for the neutrinoless double-beta decay of 76Ge. Such a decay, if found, would show lepton-number violat…

cond-mat.mtrl-sci2011★ 38 cited

Ab Initio Study of the Intrinsic Exchange Bias at the SrRuO/SrMnO Interface

Shuai Dong, Qinfang Zhang, Seiji Yunoki +2

In a recent publication (S. Dong et al., Phys. Rev. Lett.103, 127201 (2009)), two (related) mechanisms were proposed to understand the intrinsic exchange bias present in oxides het…

astro-ph.SR2011★ 49 cited

Algebraic Stabilization of Explicit Numerical Integration for Extremely Stiff Reaction Networks

Mike Guidry

In contrast to the prevailing view in the literature, it is shown that even extremely stiff sets of ordinary differential equations may be solved efficiently by explicit methods if…

astro-ph.SR2011★ 1 cited

Explicit Integration of Extremely-Stiff Reaction Networks: Quasi-Steady-State Methods

M. W. Guidry, J. A. Harris

A preceding paper demonstrated that explicit asymptotic methods generally work much better for extremely stiff reaction networks than has previously been shown in the literature. T…

astro-ph.SR2011★ 1 cited

Explicit Integration of Extremely-Stiff Reaction Networks: Partial Equilibrium Methods

M. W. Guidry, J. J. Billings, W. R. Hix

In two preceding papers we have shown that, when reaction networks are well-removed from equilibrium, explicit asymptotic and quasi-steady-state approximations can give algebraical…

astro-ph.SR2011★ 2 cited

Explicit Integration of Extremely-Stiff Reaction Networks: Asymptotic Methods

M. W. Guidry, R. Budiardja, E. Feger +6

We show that, even for extremely stiff systems, explicit integration may compete in both accuracy and speed with implicit methods if algebraic methods are used to stabilize the num…

cond-mat.mtrl-sci2011★ 28 cited

Electrochemical Strain Microscopy with Blocking Electrodes: The Role of Electromigration and Diffusion

A. N. Morozovska, E. A. Eliseev, S. V. Kalinin

Electrochemical strains are a ubiquitous feature of solid state ionic devices ranging from ion batteries and fuel cells to electroresistive and memristive memories. Recently, we pr…

cond-mat.mtrl-sci2011★ 34 cited

Frequency Dependent Dynamical Electromechanical Response of Mixed Ionic-Electronic Conductors

A. N. Morozovska, E. A. Eliseev, S. L. Bravina +4

Frequency dependent dynamic electromechanical response of the mixed ionic-electronic conductor film to a periodic electric bias is analyzed for different electronic and ionic bound…

astro-ph.SR2011★ 83 cited

On the Requirements for Realistic Modeling of Neutrino Transport in Simulations of Core-Collapse Supernovae

Eric J. Lentz, Anthony Mezzacappa, O. E. Bronson Messer +3

We have conducted a series of numerical experiments with the spherically symmetric, general relativistic, neutrino radiation hydrodynamics code Agile-BOLTZTRAN to examine the effec…

cond-mat.mtrl-sci2011★ 53 cited

Magnetic non-uniformity and thermal hysteresis of magnetism in a manganite thin film

Surendra Singh, M. R. Fitzsimmons, T. Lookman +5

We measured the chemical and magnetic depth profiles of a single crystalline (LaPr)CaMnO (x = 0.52\pm0.05, y = 0.23\pm0.04, δ = 0.14\pm0.10) film gr…

nucl-ex2011★ 61 cited

Exploring the anomaly in the interaction cross section and matter radius of 23O

R. Kanungo, A. Prochazka, M. Uchida +37

New measurements of the interaction cross sections of 22,23O at 900A MeV performed at the GSI, Darmstadt are reported that address the unsolved puzzle of the large cross section pr…

physics.ins-det2011★ 15 cited

Tests of Modulated Intensity Small Angle Scattering in time of flight mode

G. Brandl, J. Lal, J. Carpenter +5

We report results of tests of the MISANS technique at the CG-1D beamline at High Flux Isotope Reactor (HFIR), Oak Ridge National Laboratory (ORNL). A chopper at 40 Hz simulated a p…

cond-mat.mtrl-sci2011★ 38 cited

Suppression of Grain Boundaries in Graphene Growth on Superstructured Mn-Cu(111) Surface

Wei Chen, Hua Chen, Haiping Lan +4

As undesirable defects, grain boundaries (GBs) are widespread in epitaxial graphene using existing growth methods on metal substrates. Employing density functional theory calculati…

cond-mat.supr-con2011★ 7 cited

Pressure induced renormalization of energy scales in the unconventional superconductor FeTe0.6Se0.4

Karol Marty, Andrew D. Christianson, Antonio M. dos Santos +8

We have carried out a pressure study of the unconventional superconductor FeTe0.6Se0.4 up to 1.5 GPa by neutron scattering, resistivity and magnetic susceptibility measurements. We…

cond-mat.supr-con2011★ 77 cited

Reciprocal-space structure and dispersion of the magnetic resonant mode in the superconducting phase of Rb(x)Fe(2-y)Se2 single crystals

G. Friemel, J. T. Park, T. A. Maier +8

Inelastic neutron scattering is employed to study the reciprocal-space structure and dispersion of magnetic excitations in the normal and superconducting states of single-crystalli…

nucl-th2011★ 25 cited

Self-consistent tilted-axis-cranking study of triaxial strongly deformed bands in Er at ultrahigh spin

Yue Shi, J. Dobaczewski, S. Frauendorf +4

Stimulated by recent experimental discoveries, triaxial strongly deformed (TSD) states in Er at ultrahigh spins have been studied by means of the Skyrme-Hartree-Fock model…

nucl-th2011★ 101 cited

Fission properties for r-process nuclei

J. Erler, K. Langanke, H. P. Loens +2

We present a systematics of fission barriers and fission lifetimes for the whole landscape of super-heavy elements (SHE), i.e. nuclei with Z>100. The fission lifetimes are also com…

cond-mat.mes-hall2011★ 5.2k cited

Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides

Di Xiao, Gui-Bin Liu, Wanxiang Feng +2

We show that inversion symmetry breaking together with spin-orbit coupling leads to coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides, making…

nucl-ex2011★ 52 cited

Light vector meson production in pp collisions at = 7 TeV

ALICE Collaboration

The ALICE experiment has measured low-mass dimuon production in pp collisions at TeV in the dimuon rapidity region 2.5<y<4. The observed dimuon mass spectrum is desc…

hep-ex2011★ 59 cited

Underlying Event measurements in pp collisions at = 0.9 and 7 TeV with the ALICE experiment at the LHC

ALICE collaboration

We present measurements of Underlying Event observables in pp collisions at = 0.9 and 7 TeV. The analysis is performed as a function of the highest charged-particle tran…

hep-ph2011★ 7 cited

Bose-Einstein Interference in the Passage of a Jet in a Dense Medium

Cheuk-Yin Wong

When a jet collides coherently with many parton scatterers at very high energies, the Bose-Einstein symmetry with respect to the interchange of the virtual bosons leads to a destru…

cond-mat.supr-con2011★ 44 cited

Phonon softening near structural transition in BaFe2As2 observed by inelastic x-ray scattering

Jennifer L. Niedziela, D. Parshall, K. A. Lokshin +3

In this work we present the results of an inelastic x-ray scattering experiment detailing the behavior of the transverse acoustic [110] phonon in BaFe2As2 as a function of temperat…

cond-mat.str-el2011★ 22 cited

Quasi-one-dimensional magnons in an intermetallic marcasite

M. B. Stone, M. D. Lumsden, S. E. Nagler +4

We present inelastic neutron scattering measurements and first principles calculations examining the intermetallic marcasite CrSb2. The observed spin wave dispersion implies that t…

nucl-ex2011★ 17 cited

The Majorana experiment: an ultra-low background search for neutrinoless double-beta decay

D. G. Phillips, E. Aguayo, F. T. Avignone +86

The observation of neutrinoless double-beta decay would resolve the Majorana nature of the neutrino and could provide information on the absolute scale of the neutrino mass. The in…