X-Git-Url: https://hackdaworld.org/gitweb/?p=lectures%2Flatex.git;a=blobdiff_plain;f=posic%2Fpublications%2Fsic_prec_reply02.txt;fp=posic%2Fpublications%2Fsic_prec_reply02.txt;h=8734d3f58d8d2630d72a2c93dfaadff3b815ac0f;hp=9cd5ee00e255894de929ef35ac456382599fb825;hb=88e50987df39a180694923e76bbc5a796de19f59;hpb=4a4cebd2e5ec468cfa0eeabd511f349cf46be379 diff --git a/posic/publications/sic_prec_reply02.txt b/posic/publications/sic_prec_reply02.txt index 9cd5ee0..8734d3f 100644 --- a/posic/publications/sic_prec_reply02.txt +++ b/posic/publications/sic_prec_reply02.txt @@ -112,19 +112,32 @@ A repsective statement was added (Change 3). > that compare with taking the energies of each defect in a > supercell. -We would like to remind the referee that the properties of isolated, -non-intertacting defects were modeled in separate simulation runs. It -is not our purpose to separate defects by a large distance in order to -approximate the situation of isolated defects. We are rather -interested in interacting defects. However, we did find that for -increasing defect distances, configurations appear, which converge to -the energetics of two isolated defects. This is indicated by the -(absolute value of the) binding energy, which is approaching zero with -increasing distance. From this, we conclude a decrease in -interaction, which is already observable for defect separation -distances accessible in our simulations. Combinations of defects with -similar distances were already successfully modeled in a supercell -containing 216 atoms as described in PRB 66, 195214 (2002). +The calculations criticized by the referee did not aim at the +properties of isolated, non-intertacting defects, but rather at the +defect-defect interaction. Single defects were modeled in separate +simulation runs. However, we did find that for increasing defect +distances, configurations appear, which converge to the energetics of +two isolated defects. This is indicated by the (absolute value of the) +binding energy, which is approaching zero with increasing distance. +From this, we conclude a decrease in interaction, which is already +observable for defect separation distances accessible in our +simulations. Combinations of defects with similar distances were +already successfully modeled in a supercell containing 216 atoms as +described in PRB 66, 195214 (2002). + +% We would like to remind the referee that the properties of isolated, +% non-intertacting defects were modeled in separate simulation runs. It +% is not our purpose to separate defects by a large distance in order to +% approximate the situation of isolated defects. We are rather +% interested in interacting defects. However, we did find that for +% increasing defect distances, configurations appear, which converge to +% the energetics of two isolated defects. This is indicated by the +% (absolute value of the) binding energy, which is approaching zero with +% increasing distance. From this, we conclude a decrease in +% interaction, which is already observable for defect separation +% distances accessible in our simulations. Combinations of defects with +% similar distances were already successfully modeled in a supercell +% containing 216 atoms as described in PRB 66, 195214 (2002). An explanation of the binding energy and the relation to the interaction of defects was added (Change 8). @@ -134,13 +147,23 @@ interaction of defects was added (Change 8). > are seen for constant volume calculations (on a few simple > examples, say)? -Differences are supposed to be negligible small since only small -changes in volume are detected. However, in experiment, substrate -swelling is observed. Thus, to allow for full relaxation, simulations -were performed in the NpT ensemble. However, for the above-mentioned -reason, no fundamental differences are expected for single defect -configurations in the canonical and isothermal-isobaric ensemble with -respect to energy. +% Differences are supposed to be negligible small since only small +% changes in volume are detected. However, in experiment, substrate +% swelling is observed. Thus, to allow for full relaxation, simulations +% were performed in the NpT ensemble. However, for the above-mentioned +% reason, no fundamental differences are expected for single defect +% configurations in the canonical and isothermal-isobaric ensemble with +% respect to energy. + +In experiment, substrate swelling is observed for high-dose carbon +implantation into silicon. Indeed, for a single defect, the change in +volume is less than 0.2% in simulation. Due to this, results of single +defects within an isothermal-isobaric simulation are expected to not +drastically differ to results of constant volume simulations. Based on the +experimentally observed change in volume for high-dose carbon +implantations, however, the respective relaxation is allowed for in +simulation for both, single defect calulations as well as the high carbon +concentration simulations. A respective statement was added to the methodology section (Change 4). @@ -261,8 +284,8 @@ same extent in order to legitimate the increase in temperature to appropriately consider the overestimated barrier heights for diffusion. -Indeed the cut-off effect increases if the system is driven away from -the equilibrium (such as by modeling IBS). Since this is to some +Indeed, the cut-off effect increases if the system is driven away from +the equilibrium, such as it is the case in IBS. Since this is to some extent cured by increasing the simulation temperature, the work-around is particularly helpful for short range potentials.