Magnetic exchange interactions within binuclear entities of chromium III

Ferromagnetic superexchange in insulatingCr2MoO6by controlling orbital hybridization

“…The fitting gives a Weiss temperature θ w ~ -254.4 K and the effective magnetic moment µ eff is estimated to be 2.92 µ B / Cr, close to the expected value 3 µ B for the Cr 3+ spins. The negative θ w is consistent with the dominance of antiferromagnetic correlations in Cr1-Cr3 and Cr2-Cr4 dimers [12] in this system. The increase in the susceptibility at low temperatures is presumably due to paramagnetic impurities [7,13].…”

Features of magnetic and magnetoelectric properties, H-T phase diagram of GdCr3(BO3)4

“…The exchange interaction dependence on the distance between Cr 3+ ions is depicted (Fig. 2) by using the published data on magnetic properties of compounds with sharing-edges CrO6 octahedra [21][22][23][24][25][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56] (data on organometallic compounds are not taken into account). Chemical formulae of all the compounds and numerical data presented in figure 2 are given in Appendix A.…”

Spin dynamics of antiferromagnetically coupled ferromagnetic bilayers—the case of Cr2WO6 and Cr2MoO6

“…6 and Fig. 7, we plot the (k, ω) dependence of DOS 11 , DOS 22 , DOS 21 , and DOS 12 . The equality DOS 12 (k, ω) = DOS 21 (k, ω) for any k is still preserved for non-zero η.…”