Removing derivative of effective dos

Author: marc-flex

tidy3d/components/spice/analysis/dc.py

@@ -81,7 +81,7 @@ class SteadyChargeDCAnalysis(Tidy3dBaseModel):
 
 class IsothermalSteadyChargeDCAnalysis(SteadyChargeDCAnalysis):
     """
-    Configures relevant steady-state DC simulation parameters for a charge simulation.
+    Configures relevant Isothermal steady-state DC simulation parameters for a charge simulation.
     """
 
     temperature: pd.PositiveFloat = pd.Field(

tidy3d/components/tcad/effective_DOS.py

@@ -20,10 +20,6 @@ class EffectiveDOS(Tidy3dBaseModel, ABC):
     def calc_eff_dos(self, T: float):
         """Abstract method to calculate the effective density of states."""
 
-    @abstractmethod
-    def calc_eff_dos_derivative(self, T: float):
-        """Abstract method to calculate the temperature derivative of the effective density of states."""
-
     def get_effective_DOS(self, T: float):
         if T <= 0:
             raise DataError(
@@ -32,14 +28,6 @@ def get_effective_DOS(self, T: float):
 
         return self.calc_eff_dos(T)
 
-    def get_effective_DOS_derivative(self, T: float):
-        if T <= 0:
-            raise DataError(
-                f"Incorrect temperature value ({T}) for the effectve density of states calculation."
-            )
-
-        return self.calc_eff_dos_derivative(T)
-
 
 class ConstantEffectiveDOS(EffectiveDOS):
     """Constant effective density of states model."""
@@ -51,9 +39,6 @@ class ConstantEffectiveDOS(EffectiveDOS):
     def calc_eff_dos(self, T: float):
         return self.N
 
-    def calc_eff_dos_derivative(self, T: float):
-        return 0.0
-
 
 class IsotropicEffectiveDOS(EffectiveDOS):
     """Effective density of states model that assumes single valley and isotropic effective mass.
@@ -76,9 +61,6 @@ class IsotropicEffectiveDOS(EffectiveDOS):
     def calc_eff_dos(self, T: float):
         return np.power(self.m_eff * T, 1.5) * DOS_aux_const
 
-    def calc_eff_dos_derivative(self, T: float):
-        return self.calc_eff_dos(T) * 1.5 / T
-
 
 class MultiValleyEffectiveDOS(EffectiveDOS):
     """Effective density of states model that assumes multiple equivalent valleys and anisotropic effective mass.
@@ -117,9 +99,6 @@ def calc_eff_dos(self, T: float):
             * DOS_aux_const
         )
 
-    def calc_eff_dos_derivative(self, T: float):
-        return self.calc_eff_dos(T) * 1.5 / T
-
 
 class DualValleyEffectiveDOS(EffectiveDOS):
     """Effective density of states model that assumes combination of light holes and heavy holes with isotropic effective masses.
@@ -148,6 +127,3 @@ class DualValleyEffectiveDOS(EffectiveDOS):
 
     def calc_eff_dos(self, T: float):
         return (np.power(self.m_eff_lh * T, 1.5) + np.power(self.m_eff_hh * T, 1.5)) * DOS_aux_const
-
-    def calc_eff_dos_derivative(self, T: float):
-        return self.calc_eff_dos(T) * 1.5 / T