Shift of Half-Field EPR Lines in Low-Dimensional Magnetic Systems

抄録

In the one-dimensional system TMMC, the position of the half-field EPR line changes remarkably with angle between the static field and the c-axis, whereas in the two-dimensional system K₂MnF₄, there is almost no change in its position. The large shift in TMMC is thought to come solely from the dynamic effect due to the long-time tail of the spin correlation functions.