Metamagnetism and non-fermi liquid behavior in CeIrIn5
We report transverse magnetoresistance in a CeIrIn5 single crystal at magnetic fields up to 33T and temperatures down to 25mK, with the magnetic field oriented along the c-axis of this tetragonal heavy fermion compound. The metamagnetic transition is marked by a characteristic drop in resistivity at the lowest temperatures as the magnetic field is increased. Resistivity shows Non-Fermi Liquid behavior above and below the metamagnetic transition field. These results are suggestive of a field-tuned metamagnetic quantum critical point in CeIrIn5. © 2006 American Institute of Physics.