The pressures magnetization in the strong coupling limit h22 h n+ 12C1 (3n-57n2) 3n+5|+01/c2)+01/c2 12C2 h h mz= n+ 3n2 +O(1/c1)+O(1/c2) (b n=08 n=0.04 0 02 =n=0.8 n=0.6 n=0.04 10 0 510 10 0 h When the external field h is zero, the pressure takes its minimum. With the increasing h, the pressure increases. At the fully polarized state, the pressure arrives at its maximumThe pressures & magnetization in the strong coupling limit When the external field h is zero, the pressure takes its minimum. With the increasing h, the pressure increases. At the fully polarized state, the pressure arrives at its maximum