We report the pressure (P)- induced evolution of the antiferromagnetism in CeRhIn5 which undergoes a superconducting transition at Tc\sim 2.1 K at pressurs exceeding Pc\sim 1.6 GPa. From measurements of 115In nuclear-spin-lattice-relaxation time (T1) under P, we found that Néel temperature TN is reduced above P = 1.23 GPa, which is accompanied by an emergent pseudogap behavior.
PACS numbers: 74.25.Ha, 74.62.Fj, 74.70.Tx, 75.30.Kz
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