DM interactions

One can expect that nL SM interactions are typically weaker than corresponding nL->-dM interactions, because the isotropic metal s orbital is not focussed toward any particular donor ligand nL, whereas a d orbital or sd hybrid has strong... 

As follows from the Table the uniform U-AFM and D-AFM states possess quite similar symmetry. In spite of the SP-distortions nothing new appears in DM interactions. Thus, Hamiltonian (3) is suitable for both states but with slightly different constants. The strongest differences expect for the anisotropy constants. 

D = (Ag/g)Jb, as well as d = (Ag/gfjc According to this estimation and ratio between Jc and Jb one can expect at least the equal significance of intra- and inter-chain DM interactions in the resonance properties of AFM states in Cui xMxGeOj,. Furthermore, DM interactions renormalize anisotropy for both acoustic modes. 

The value of the exchange modes of the magnetic resonance has the same order of a magnitude as triplet excitations in the dimerized state [5], These modes exist in both U- and D-AFM states. Furthermore, these modes excite by a high frequency magnetic field polarized perpendicular to easy axis. Their intensities define by the DM interactions. The spin oscillations in these modes respect to a violation of 3D AFM order along chains as well as between chains. Therefore, one can expect an amplification of their intensities under motion of boundaries between coexisting SP- and AFM states. The next experiments are necessary to make situation clear. 

Depending on the considered system, additional terms must be added to the micromagnetic equation. In lowest order, DM interactions amount to a random field Zj(Z),Jjyex - Dlj Xey)/2 where the summation (or integration) over j includes all atomic neighbors the resulting structure may be called a spin colloid. ... 

Kagome lattice leads to Dzyaloshinsky-Moriya (DM) interactions, the in-plane components of which can give rise to magnetic polarizations in the out-of-plane directions with canted vectors of magnetic moments.16 It is interesting to... 

The DM interacts with gel pH to determine the maximum gel strength measurement. In the typical curve shown in Figure 1, the optimum firmness occurs at higher pH values for higher IM pectins (7, 47). 

Diaz C, GUlum DM Interaction of diltiazem and nifedipine with cyclo orine in renal transplant recipients. Kithey Int ( 9%9 ) 35, 513. 

Departures from Equation (15) observed on single-crystal samples of Cdi Mn Se have been ascribed to Dzyaloshinski-Moriya (DM) interactions within noncentrosymmetric couples of manganese(II) ions. The DM interactions (Equation (16)) are indeed able to mix the spin wave functions near thus leading to a rounding of the steps. 

Now, it also becomes clear that the DM interaction can only be non-zero when the local principal magnetic axis are not parallel. The situation becomes slightly more... 

Fert and Levy (1980,1981) propose this DM interaction to be responsible for observed anisotropy effects in metallic spin glasses. The anisotropy field D is randomly distributed (like the T atoms), i.e. there is no global anisotropy axis, but with eq. 4 one gets a macroscopic anisotropy energy of unidirectional character... 

Mn ion also overlaps well with that of the x z magnetic orbital of the Mn" ion (Figure 24.14c). As will be discussed later, this gives to a very strong DM interaction between the Mn2 and Mn3" sites (see Section 24.7.4) [55]. 

Suppose that 5L and 8L2 are the unquenched orbital angular momenta at sites I and 2, respectively. Then, use of the Hso (equation 24.60) as perturbation leads to the DM interaction energy Edm [23,50]... 

Considering that the DM interaction D (S x S2) as perturbation, examine how the ground state energy and wave functions of the spin dimer are described under the effect of the DM interaction. 

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