Quantitative calculations of polarizations arising from the symmetric and antisymmetric exchange strictions in Tm-doped GdMnO3*
Qin Ming-Huia)†, Lin Linb), Li Linb), Jia Xing-Taoc), Liu Jun-Mingb)‡
       
Calculated J b dependence of ( S · S ) contribution P S, ( S × S ) contribution P AS, and the summation P S+ P AS at T → 0. The summation reproduces the experimental P well.