Magnetoelectric polarizability

Dt, electric displacement Pi AT, pyroelectric effect Ky Ej, permittivity Ky Hj, magnetoelectric polarizability dyic rSjk, piezoelectric effect... 

The magnetoelectric polarizability [X, ] of a crystalline material gives rise to a magnetic moment I (Tan axial vector, or T( 1 )ax) when the crystal is placed in an electric field E (Aa polar vector, or T( 1)). Its transpose [T/ ] describes the converse magnetoelectric effect in which the roles of Y and X are interchanged. To find the structure of K = [T, ], we look for IRs which have components of both xy z and Rx Ry Rz as bases. 

If we can combine ferroelectrically polarizable guest molecules with PCPMs, then we can obtain new types of multiferroic materials, where ferroelectricity and ferromagnetism coexist. Such multifunctional materials have recently aroused increasing interest from the viewpoint of the development of new materials with very large magnetoelectric effects. [Mn3(HCOO)6] EtOH is considered to be the first ferroelectric PCP.182 Because the desolvated compound [Mn3(HCOO)6] shows a very small and almost temperature-independent dielectric constant, irrespective of the direction of the electric field,183 the observed ferroelectric property is considered to come mainly from the guest EtOH molecules. 

Some molecular tensors (electric dipole polarizability, electric and magnetoelectric shielding) are origin independent, as can be immediately found by inspection of definitions (87)-(112). Other tensors depend on the origin assumed for the multipole expansion. For instance, in a change of origin... 

Electric quadrupole polarizabilities of nuclear magnetic shieldings 49 Nuclear magnetoelectric shielding 50... 

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