The magnetic susceptibility has been studied by using a new trial function for the model interaction between spins arranged in a low-dimensional square pyramidal system. We suggest that the exchange interaction depends on a power exponent which depends on the pyramidal structure in addition to the magnetic energy and thermal energy. We have calculated the magnetization as a function of the temperature and magnetic field keeping the exponent constant. Dependence of the susceptibility on a characteristic length related to the low-dimensional system exhibits novel features. Magnetic field dependence of the susceptibility has a maximum which shifts toward higher field as the temperature is increased. Even at higher fields, the susceptibility can be very small. The variations of the susceptibility with temperature exhibit maximum which depends on the external perturbing field.

磁化率已通过使用新的试验函数研究了排列在低维方形锥体系统中的自旋之间的模型相互作用。我们建议交换相互作用还取决于幂指数，除了磁能和热能之外，幂指数还取决于金字塔结构。我们已经计算出磁化强度与温度和磁场的函数关系，保持指数恒定。磁化率对与低维系统有关的特征长度的依赖性表现出新颖的特征。磁化率对磁场的依赖性最大，随着温度升高，磁场向更高的磁场偏移。即使在更高的领域，磁化率也可能很小。