Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Sethna, J. P."'
Autor:
Lawler, M. J., Fujita, K., Lee, Jhinhwan, Schmidt, A. R., Kohsaka, Y., Kim, Chung Koo, Eisaki, H., Uchida, S., Davis, J. C., Sethna, J. P., Kim, Eun-Ah
Publikováno v:
Nature 466, 347, (2010)
In the high-transition-temperature (high-Tc) superconductors the pseudogap phase becomes predominant when the density of doped holes is reduced1. Within this phase it has been unclear which electronic symmetries (if any) are broken, what the identity
Externí odkaz:
http://arxiv.org/abs/1007.3216
Publikováno v:
Phys.Rev.Lett.104:060201,2010
Fitting model parameters to experimental data is a common yet often challenging task, especially if the model contains many parameters. Typically, algorithms get lost in regions of parameter space in which the model is unresponsive to changes in para
Externí odkaz:
http://arxiv.org/abs/0909.3884
Autor:
Mortensen, J. J., Kaasbjerg, K., Frederiksen, S. L., Norskov, J. K., Sethna, J. P., Jacobsen, K. W.
We present a practical scheme for performing error estimates for Density Functional Theory calculations. The approach which is based on ideas from Bayesian statistics involves creating an ensemble of exchange-correlation functionals by comparing with
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506225
Autor:
Pasupathy, A. N., Park, J., Chang, C., Soldatov, A. V., Lebedkin, S., Bialczak, R. C., Grose, J. E., Donev, L. A. K., Sethna, J. P., Ralph, D. C., McEuen, P. L.
We measure electron tunneling in single-molecule transistors made from C_{140}, a molecule with a mass-spring-mass geometry chosen as a model system to study electron-vibration coupling. We observe vibration-assisted tunneling at an energy correspond
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311150
Detailed KMC-MD (kinetic Monte Carlo-molecular dynamics) simulations of hyperthermal energy (10-100 eV) copper homoepitaxy have revealed a re-entrant layer-by-layer growth mode at low temperatures (50K) and reasonable fluxes (1 ML/s). This growth mod
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207004
We present a simple mesoscale field theory inspired by rate-independent plasticity that reflects the symmetry of the deformation process. We parameterize the plastic deformation by a scalar field which evolves with loading. The evolution equation for
Externí odkaz:
http://arxiv.org/abs/cond-mat/0203397
Publikováno v:
Phys. Rev. E 65, 036117 (2002)
We present a continuum phase-field model of crack propagation. It includes a phase-field that is proportional to the mass density and a displacement field that is governed by linear elastic theory. Generic macroscopic crack growth laws emerge natural
Externí odkaz:
http://arxiv.org/abs/cond-mat/0108249
In seeking to understand at a microscopic level the response of dislocations to stress we have undertaken to study as completely as possible the simplest case: a single dislocation in a two dimensional crystal. The intention is that results from this
Externí odkaz:
http://arxiv.org/abs/cond-mat/0001167
Autor:
Wickham, L. K., Sethna, J. P.
Publikováno v:
Phys. Rev. B 51, 15017 (1995)
We study electromigration in a driven diffusive lattice gas (DDLG) whose continuous Monte Carlo dynamics generate higher particle mobility in areas with lower particle density. At low vacancy concentrations and low temperatures, vacancy domains tend
Externí odkaz:
http://arxiv.org/abs/cond-mat/9412007
Publikováno v:
Phys. Rev. B 48, 16533 (1993)
We present real--space renormalization group (RG) calculations of the critical properties of the random--field Ising model on a cubic lattice in three dimensions. We calculate the RG flows in a two--parameter truncation of the Hamiltonian space. As p
Externí odkaz:
http://arxiv.org/abs/cond-mat/9304047