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Novel phase diagram for antiferromagnetism and superconductivity in pressure-induced heavy-fermion superconductor Ce$_2$RhIn$_8$ probed by In-NQR
- Source :
- Phys. Rev. B 80, 184503 (2009)
- Publication Year :
- 2009
-
Abstract
- We present a novel phase diagram for the antiferromagnetism and superconductivity in Ce$_2$RhIn$_8$ probed by In-NQR studies under pressure ($P$). The quasi-2D character of antiferromagnetic spin fluctuations in the paramagnetic state at $P$ = 0 evolves into a 3D character because of the suppression of antiferromagnetic order for $P > P_{\rm QCP}\sim$ 1.36 GPa (QCP: antiferromagnetic quantum critical point). Nuclear-spin-lattice-relaxation rate $1/T_1$ measurements revealed that the superconducting order occurs in the $P$ range 1.36 -- 1.84 GPa, with maximum $T_c\sim$ 0.9 K around $P_{\rm QCP}\sim$ 1.36 GPa.<br />Comment: 5 pages, 5 figures, submitted to PRB
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 80, 184503 (2009)
- Publication Type :
- Report
- Accession number :
- edsarx.0910.1679
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.80.184503