Element = Lattice = Model = Element: Ta Lattice: hcp Model: EAM_Dynamo_LiSiegelAdams_2003_Ta__MO_103054252769_005 Computed model cutoff of 3.983711862564087 Angstroms Computed isolated atomic energy of 0.0 eV for species Ta ============================================================================== ============================================================================== Starting optimization to find optimum lattice constant 'a' with c/a fixed to sqrt(8/3) ============================================================================== ============================================================================== Attempting to perform relaxation using initial lattice constant guess of a = 1.0 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.0 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.125 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.125 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.25 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.25 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.375 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.375 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.5 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.5 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.625 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.625 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.75 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.75 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 1.875 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.875 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.0 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 2.0 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.125 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 2.125 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.25 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 2.25 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.375 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 2.375 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.5 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 2.5 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.625 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 2.625 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 2.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 33 Function evaluations: 72 Results for this minimization: a = 2.972617051005363, total energy = -31.806068896171755 Attempting to perform relaxation using initial lattice constant guess of a = 2.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 33 Function evaluations: 71 Results for this minimization: a = 2.9726170493057005, total energy = -31.806068896171755 Attempting to perform relaxation using initial lattice constant guess of a = 3.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 32 Function evaluations: 68 Results for this minimization: a = 2.9726170510053636, total energy = -31.806068896171755 Attempting to perform relaxation using initial lattice constant guess of a = 3.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 33 Function evaluations: 72 Results for this minimization: a = 2.972617038176395, total energy = -31.806068896171748 Attempting to perform relaxation using initial lattice constant guess of a = 3.25 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 3.25 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 3.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 35 Function evaluations: 76 Results for this minimization: a = 2.972617048455868, total energy = -31.80606889617174 Attempting to perform relaxation using initial lattice constant guess of a = 3.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 35 Function evaluations: 74 Results for this minimization: a = 2.9726170508190983, total energy = -31.806068896171755 Attempting to perform relaxation using initial lattice constant guess of a = 3.625 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 3.625 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 3.75 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 3.75 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... Attempting to perform relaxation using initial lattice constant guess of a = 3.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -31.806069 Iterations: 35 Function evaluations: 76 Results for this minimization: a = 2.9726170491427166, total energy = -31.80606889617174 Attempting to perform relaxation using initial lattice constant guess of a = 4.0 Angstroms (c/a fixed at sqrt(8/3)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 4.0 Angstroms Exception message: Calling "kim_model.compute" failed. Continuing... ============================================================================== ============================================================================== Starting optimization with both a and c/a relaxed ============================================================================== ============================================================================== Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 3.8834106536853423 = ([1.30639453] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 68 Function evaluations: 147 Results for this minimization: a = 2.972617027125837, c = 4.8542633154667705, total energy = -31.806068896171727 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 4.126123819540676 = ([1.38804419] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 70 Function evaluations: 150 Results for this minimization: a = 2.9726170481465615, c = 4.854263284596822, total energy = -31.806068896171734 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 4.36883698539601 = ([1.46969385] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 69 Function evaluations: 147 Results for this minimization: a = 2.972617037242539, c = 4.854263302234706, total energy = -31.806068896171745 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 4.611550151251343 = ([1.5513435] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 68 Function evaluations: 143 Results for this minimization: a = 2.972617039689423, c = 4.854263320857569, total energy = -31.806068896171748 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 4.8542633171066765 = ([1.63299316] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 65 Function evaluations: 143 Results for this minimization: a = 2.972617051005363, c = 4.8542633171066765, total energy = -31.806068896171748 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 5.096976482962011 = ([1.71464282] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 68 Function evaluations: 143 Results for this minimization: a = 2.972617021292058, c = 4.854263364078288, total energy = -31.80606889617173 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 5.339689648817345 = ([1.79629248] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 73 Function evaluations: 155 Results for this minimization: a = 2.9726170576847535, c = 4.854263292171334, total energy = -31.806068896171748 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 5.582402814672678 = ([1.87794214] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 76 Function evaluations: 158 Results for this minimization: a = 2.9726170244544816, c = 4.854263369680165, total energy = -31.806068896171734 Attempting to perform relaxation using initial lattice constant guess of a = [2.97261705] Angstroms and c = 5.825115980528011 = ([1.95959179] * a) Angstroms Optimization terminated successfully. Current function value: -31.806069 Iterations: 72 Function evaluations: 158 Results for this minimization: a = 2.9726170442616713, c = 4.854263425654725, total energy = -31.806068896171702 ============================================================================== ============================================================================== Finished with optimization ============================================================================== ============================================================================== Final lattice Constants: a = [2.97261705] Angstroms, c = [4.85426332] Angstroms, c/a = 1.632993 Total energy: -31.806068896171755 eV Cohesive energy: -7.951517224042939 eV/atom ============================================================================== ==============================================================================