μSRμSR measurements on the vortex lattice of La1.83Sr0.17CuO4

We report μSRμSR measurements of the vortex lattice in the slightly overdoped compound La2-xSrxCuO4La2-xSrxCuO4(x=0.17)(x=0.17). The magnetic phase diagram provides an interesting comparison to the more exotic phases observed in the underdoped (x=0.10)(x=0.10) compound. The field induced hexagonal to intrinsic square transition is observed to occur at around 0.4 T in agreement with previous neutron measurements.