As far my understanding tells, a BMP is a particular type of molecule-complex in an occupied donor or an acceptor. Bound electrons (holes) trapped by the defect states can couple with the available d/f shell ions within a hydrogenic Bohr orbit of radius rH (rH ~ 0.76 nm) and form BMP through the sp-d interaction leading to a net ferromagnetic alignment of the magnetic spins. Through the percolation of the BMPs, a long range FM ordering can occur in case of the materials like magnetic semiconducting material and other diluted magnetic materials where the concentrations of d-shell electrons and itinerant carriers are quite less as compared to the FM metals or their alloys.
Can anybody share detailed ideas on this regard, about the preferable conditions of BMP formation and their percolation to produce High temperature FM characteristics (like the required conditions of the donar/acceptor defect states, free carriers, concentration of d/f electrons, BMP concentration, order of magnetic moment etc.). Particularly, incase of 'Magnetic Semiconductor' materials.
You can get the similar or apropriate answer by searching the keyword in the GOOGLE SCHOLAR page. Usually you will get the first paper similar to your keyword.
From my experience, this way will help you a lot. If you still have a problem, do not hasitate to let me know.
Kind regards, Dr ZOL BAHRI - Universiti Malaysia Perlis, MALAYSIA
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