Navigation : Manual Input Variables - Atomic Orbitals - Calculation Modes - ClassicalParticles - DFTBPlusInterface - Execution - Hamiltonian -- DFT+U -- PCM -- Poisson -- XC --- DensityCorrection --- DFTULevel --- HFSingularity --- HFSingularityNk --- HFSingularityNsteps --- Interaction1D --- Interaction1DScreening --- KLIPhotonCOC --- libvdwxcDebug --- libvdwxcMode --- libvdwxcVDWFactor --- OEPLevel --- OEPMixing --- OEPMixingScheme --- PhotonModes --- SICCorrection --- VDW_TS_cutoff --- VDW_TS_damping --- VDW_TS_sr --- VDWCorrection --- VDWD3Functional --- VDWSelfConsistent --- Xalpha --- XCFunctional --- XCKernel --- XCKernelLRCAlpha --- XCUseGaugeIndependentKED -- AdaptivelyCompressedExchange -- CalculateSelfInducedMagneticField -- ClassicalPotential -- CurrentDensity -- EnablePhotons -- EwaldAlpha -- ExternalCurrent -- FilterPotentials -- ForceTotalEnforce -- GaugeFieldDelay -- GaugeFieldDynamics -- GaugeFieldPropagate -- GaugeVectorField -- GyromagneticRatio -- MagneticConstrain -- MagneticConstrainStrength -- MassScaling -- MaxwellHamiltonianOperator -- MaxwellMediumCalculation -- ParticleMass -- RashbaSpinOrbitCoupling -- RelativisticCorrection -- RiemannSilbersteinSign -- SOStrength -- StaticElectricField -- StaticMagneticField -- StaticMagneticField2DGauge -- TheoryLevel -- TimeZero - Linear Response - Math - Maxwell - MaxwellStates - Mesh - Output - SCF - States - System - Time-Dependent - Utilities - Alphabetic Index Tutorials Developers Releases Xalpha A - B - C - D - E - F - G - H - I - K - L - M - N - O - P - Q - R - S - T - U - V - W - X Xalpha Section Hamiltonian::XC Type float Default 1.0 The parameter of the Slater X$\alpha$ functional. Applies only for XCFunctional = xc_lda_c_xalpha. Source information hamiltonian/xc_functional.F90 : 239 call parse_variable(namespace, 'Xalpha', M_ONE, parameters(1)) Featured in testfiles functionals/07-sic.01-gs.inp