21 const double square_angstroms = Units::angstrom * Units::angstrom;
23 inline double getWlPrefactor(
double wavelength)
25 return wavelength * wavelength / M_PI;
29 MaterialBySLDImpl::MaterialBySLDImpl(
const std::string& name,
double sld_real,
double sld_imag,
32 m_sld_imag(sld_imag < 0. ? throw std::runtime_error(
33 "The imaginary part of the SLD must be greater or equal zero")
50 return 1.0 - getWlPrefactor(wavelength) * sld();
55 return complex_t(m_sld_real * square_angstroms, m_sld_imag * square_angstroms);
60 double wavelength = wavevectors.getWavelength();
61 return 1.0 / getWlPrefactor(wavelength) - sld();
66 ostr <<
"MaterialBySLD:" <<
getName() <<
"<" <<
this <<
">{ "
67 <<
"sld_real=" << m_sld_real <<
", sld_imag = " << m_sld_imag <<
", B=" <<
magnetization()
71 complex_t MaterialBySLDImpl::sld()
const
73 return complex_t(m_sld_real, -m_sld_imag);
Defines class MaterialBySLDImpl.
Defines some unit conversion factors and other constants in namespace Units.
const std::string & getName() const
Returns name of the material.
Basic implementation for magnetized material.
kvector_t magnetization() const override final
Returns the magnetization (in A/m)
Material implementation based on wavelength-independent data (valid for a range of wavelengths)
void print(std::ostream &ostr) const override
Prints object data.
complex_t refractiveIndex2(double wavelength) const override
Returns squared refractive index.
complex_t scalarSubtrSLD(const WavevectorInfo &wavevectors) const override
Returns ( - sld), sld (in ) being the scattering length density.
complex_t refractiveIndex(double wavelength) const override
Returns refractive index.
complex_t materialData() const override
Returns underlying material data.
MaterialBySLDImpl * clone() const override
Returns pointer to a copy of material.
Holds all wavevector information relevant for calculating form factors.