Point defects binding

Db_?

Definition

Prefactor of break-up frequency, expressed in diffusivity units.

Interrogation mark (?) is used to indicate the particle for which the parameter is defined, for instance, Db_Ci is the prefactor of binding for interstitial carbon.

Involved particles

Impurity-"native defect" pairs.

Units

Square centimeters per second (cm2/s).

Related physical magnitudes

• Effective diffusivity of impurities.

• Long-hop distance of immobile impurities.

• Concentration of trapped native defects.

Related DADOS mechanisms

• Break-up.

• Emission from complexes.

• Particles jumps.

Comments

1. This parameter is only used for pairs.

2. When the impurity-"native defect" pair has several possible charge states, DADOS only reads the Db value of one of them, as the break-up prefactors of the different charge states are related. See break-up of charged pairs. DADOS reads the Db value of the species with the same charge state as the impurity, e.g., BiM has the charge state ''-1'', the same as B.

 

Eb_?

Definition

Binding energy.

Interrogation mark (?) is used to indicate the particle for which the parameter is defined, for instance, Eb_Ci is the binding energy for interstitial carbon.

Involved particles

Impurity-"native defect" pairs.

Units

Electron-volts (eV).

Related physical magnitudes

• Effective diffusivity of impurities.

• Long-hop distance of immobile impurities.

• Concentration of trapped native defects.

Related DADOS mechanisms

• Break-up.

• Emission from complexes.

Comments

1. This parameter is only used for pairs.