ИСТИНА

Single ion magnets typically represent linear or at least highly anisotropic complexes of d- or f-elements with more or less volumetric organic ligands. We suggest to use a purely inorganic compound with apatite structure as a matrix for d- or f-elements highly anisotropic ions with SIM properties. Except the thermal and chemical stability the apatite matrix allows us to influence on the nearest environment and crystal field parameters of magnetic ions and consequently tune the magnetic properties. Another opportunity provided by an apatite matrix is possibility to change the concentration of magnetic centers so influencing on the distance between them that could be important for example for quantum tunneling suppression. It is also possible to influence on the nearest environment of magnetic ions that could change the crystal field and so the magnetic properties.