Nuclear magnetic relaxation in itinerant electron ferromagnet ZrZn2

Abstract Nuclear spin-lattice relaxation time T1 of 91Zr in an itinerant electron ferromagnet ZrZn2 was measured in the whole temperature range including both ferromagnetic and paramagnetic states and at different magnetic fields. The experimental temperature dependences of (T1T)−1 are explained very well with the renormalized spin fluctuation theory in the presence of strong magnetic field.