From 46104f15883241ecaa86955688ec459b569a94e3 Mon Sep 17 00:00:00 2001 From: sjplimp <sjplimp@f3b2605a-c512-4ea7-a41b-209d697bcdaa> Date: Tue, 22 Feb 2011 22:29:54 +0000 Subject: [PATCH] git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@5711 f3b2605a-c512-4ea7-a41b-209d697bcdaa --- doc/pair_eff.html | 28 ++++++++++++++++++++++------ doc/pair_eff.txt | 29 ++++++++++++++++++++++------- doc/read_data.html | 14 +++++++------- doc/read_data.txt | 6 +++--- 4 files changed, 54 insertions(+), 23 deletions(-) diff --git a/doc/pair_eff.html b/doc/pair_eff.html index 186dadedf7..ecf925d135 100644 --- a/doc/pair_eff.html +++ b/doc/pair_eff.html @@ -182,8 +182,24 @@ the method in <A HREF = "#Jaramillo-Botero">(Jaramillo-Botero)</A>. <P>Work is underway to extend the eFF to higher Z elements with increasingly non-spherical electrons (p-block and d-block), to provide explicit terms for electron correlation/exchange, and to improve its -computational efficiency for atoms with a large number of core -electrons using core approximating pseudo-potentials. +computational efficiency via atom models with fixed 2 s core electrons +and atom models represented as pseudo-cores plus valence electrons. +</P> +<P>The current version adds support for models with fixed-core and +effective pseudo-core (i.e. effective core pseudopotentials, ECP) +definitions. to enable larger timesteps (i.e. by avoiding the high +frequency vibrational modes -translational and radial- of the 2 s +electrons), and in the ECP case to reduce the p-character effects in +higher Z elements (e.g. Silicon). A fixed-core should be defined with +a mass that includes the corresponding nuclear mass plus the 2 s +electrons in atomic mass units (2x5.4857990943e-4), and a radius +equivalent to that of minimized 1s electrons (see examples under +/examples/USER/eff/fixed-core). An pseudo-core should be described +with a mass that includes the corresponding nuclear mass, plus all the +core electrons (i.e no outer shell electrons), and a radius equivalent +to that of a corresponding minimized full-electron system. The charge +for a pseudo-core atom should be given by the number of outer shell +electrons. </P> <P>In general, eFF excels at computing the properties of materials in extreme conditions and tracing the system dynamics over multi-picosend @@ -266,9 +282,9 @@ Dense Matter, Phys Rev Lett, 99:185003 (2007). </P> <A NAME = "Jaramillo-Botero"></A> -<P><B>(Jaramillo-Botero_2010)</B> Jaramillo-Botero, Su, Qi, Goddard, -Large-scale, Long-term Non-adiabatic Electron Molecular Dynamics for -Describing Material Properties and Phenomena in Extreme Environments, -to appear in J Comp Chem (2010). +<P><B>(Jaramillo-Botero)</B> Jaramillo-Botero, Su, Qi, Goddard, Large-scale, +Long-term Non-adiabatic Electron Molecular Dynamics for Describing +Material Properties and Phenomena in Extreme Environments, J Comp +Chem, 32, 497-512 (2011). </P> </HTML> diff --git a/doc/pair_eff.txt b/doc/pair_eff.txt index 8fb3378899..ac2a5f30ba 100644 --- a/doc/pair_eff.txt +++ b/doc/pair_eff.txt @@ -179,8 +179,24 @@ the method in "(Jaramillo-Botero)"_#Jaramillo-Botero. Work is underway to extend the eFF to higher Z elements with increasingly non-spherical electrons (p-block and d-block), to provide explicit terms for electron correlation/exchange, and to improve its -computational efficiency for atoms with a large number of core -electrons using core approximating pseudo-potentials. +computational efficiency via atom models with fixed 2 s core electrons +and atom models represented as pseudo-cores plus valence electrons. + +The current version adds support for models with fixed-core and +effective pseudo-core (i.e. effective core pseudopotentials, ECP) +definitions. to enable larger timesteps (i.e. by avoiding the high +frequency vibrational modes -translational and radial- of the 2 s +electrons), and in the ECP case to reduce the p-character effects in +higher Z elements (e.g. Silicon). A fixed-core should be defined with +a mass that includes the corresponding nuclear mass plus the 2 s +electrons in atomic mass units (2x5.4857990943e-4), and a radius +equivalent to that of minimized 1s electrons (see examples under +/examples/USER/eff/fixed-core). An pseudo-core should be described +with a mass that includes the corresponding nuclear mass, plus all the +core electrons (i.e no outer shell electrons), and a radius equivalent +to that of a corresponding minimized full-electron system. The charge +for a pseudo-core atom should be given by the number of outer shell +electrons. In general, eFF excels at computing the properties of materials in extreme conditions and tracing the system dynamics over multi-picosend @@ -257,12 +273,11 @@ If not specified, eradius_limit_flag = 0 and pressure_flag = 0. :line :link(Su) - [(Su)] Su and Goddard, Excited Electron Dynamics Modeling of Warm Dense Matter, Phys Rev Lett, 99:185003 (2007). :link(Jaramillo-Botero) -[(Jaramillo-Botero_2010)] Jaramillo-Botero, Su, Qi, Goddard, -Large-scale, Long-term Non-adiabatic Electron Molecular Dynamics for -Describing Material Properties and Phenomena in Extreme Environments, -to appear in J Comp Chem (2010). +[(Jaramillo-Botero)] Jaramillo-Botero, Su, Qi, Goddard, Large-scale, +Long-term Non-adiabatic Electron Molecular Dynamics for Describing +Material Properties and Phenomena in Extreme Environments, J Comp +Chem, 32, 497-512 (2011). diff --git a/doc/read_data.html b/doc/read_data.html index 32b84a0f7b..f52ffdd425 100644 --- a/doc/read_data.html +++ b/doc/read_data.html @@ -303,8 +303,8 @@ of analysis. <LI>x,y,z = coordinates of atom <LI>mux,muy,muz = direction of dipole moment of atom <LI>quatw,quati,quatj,quatk = quaternion components for orientation of atom -<LI>spin = electron spin (+1/-1), 0 for nuclei -<LI>eradius = electron radius +<LI>spin = electron spin (+1/-1), 0 = nuclei, 2 = fixed-core, 3 = pseudo-cores (i.e. ECP) +<LI>eradius = electron radius (or fixed-core radius) </UL> <P>The units for these quantities depend on the unit style; see the <A HREF = "units.html">units</A> command for details. @@ -704,11 +704,11 @@ style dipole or ellipsoid. <P>where the keywords have these meanings: </P> -<UL><LI>vx,vy,vz = translational velocity of atom -<LI>lx,ly,lz = angular momentum of aspherical atom -<LI>wx,wy,wz = angular velocity of granular atom -<LI>evel = electron radial velocity -</UL> +<P>vx,vy,vz = translational velocity of atom +lx,ly,lz = angular momentum of aspherical atom +wx,wy,wz = angular velocity of granular atom +evel = electron radial velocity (0 for fixed-core):ul +</P> <P>The velocity lines can appear in any order. This section can only be used after an <I>Atoms</I> section. This is because the <I>Atoms</I> section must have assigned a unique atom ID to each atom so that velocities diff --git a/doc/read_data.txt b/doc/read_data.txt index 45a6a65b44..d624c79eee 100644 --- a/doc/read_data.txt +++ b/doc/read_data.txt @@ -282,8 +282,8 @@ volume = volume of atom (distance^3 units) x,y,z = coordinates of atom mux,muy,muz = direction of dipole moment of atom quatw,quati,quatj,quatk = quaternion components for orientation of atom -spin = electron spin (+1/-1), 0 for nuclei -eradius = electron radius :ul +spin = electron spin (+1/-1), 0 = nuclei, 2 = fixed-core, 3 = pseudo-cores (i.e. ECP) +eradius = electron radius (or fixed-core radius) :ul The units for these quantities depend on the unit style; see the "units"_units.html command for details. @@ -619,7 +619,7 @@ where the keywords have these meanings: vx,vy,vz = translational velocity of atom lx,ly,lz = angular momentum of aspherical atom wx,wy,wz = angular velocity of granular atom -evel = electron radial velocity :ul +evel = electron radial velocity (0 for fixed-core):ul The velocity lines can appear in any order. This section can only be used after an {Atoms} section. This is because the {Atoms} section -- GitLab