Magnetism and superconductivity in CeRhIn5 under chemical and hydrostatic pressures

Zheng, Guojun; Kawasaki, Shinji; Yamaguchi, Norihiko; Tanabe, Kenji; Mito, T.; Kan, Hiroki; Kitaoka, Y.; Haga, Yoshinori; Aoki, Dai; Ōnuki, Yoshichika; Sarrao, J. L.; Thompson, J. D.

doi:10.1016/s0921-4526(02)02001-x

Cited by 2 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 3a and b shows the temperature dependence of 1/T 1 . The magnitude of 1/T 1 for CeRh 0.5 Ir 0.5 In 5 is much greater than that for the nonmagnetic reference material La(Rh,Ir)In 5 37 , due to f electron spin correlations, that are reflected in the dynamical susceptibility χ″ to which 1/T 1 is proportional. At P = 0, 1/T 1 exhibits a small peak at T N = 3.0 K and decreases below T c = 0.9 K 19 .…”

Section: Resultsmentioning

confidence: 88%

See 1 more Smart Citation

Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh0.5Ir0.5In5

Kawasaki

Sorime

et al. 2020

Commun Phys

View full text Add to dashboard Cite

A fundamental problem posed from the study of correlated electron compounds, of which heavy-fermion systems are prototypes, is the need to understand the physics of states near a quantum critical point (QCP). At a QCP, magnetic order is suppressed continuously to zero temperature and unconventional superconductivity often appears. Here, we report pressure (P)-dependent 115 In nuclear quadrupole resonance (NQR) measurements on heavy-fermion antiferromagnet CeRh 0.5 Ir 0.5 In 5. These experiments reveal an antiferromagnetic (AF) QCP at P AF c ¼ 1:2 GPa where a dome of superconductivity reaches a maximum transition temperature T c. Preceding P AF c , however, the NQR frequency ν Q undergoes an abrupt increase at P Ã c = 0.8 GPa in the zero-temperature limit, indicating a change from localized to itinerant character of cerium's f-electron and associated small-to-large change in the Fermi surface. At P AF c where T c is optimized, there is an unusually large fraction of gapless excitations well below T c that implicates spin-singlet, odd-frequency pairing symmetry.

show abstract

Section: Resultsmentioning

confidence: 88%

“…The dotted (solid) arrows indicate T N (T c ), while the dashed line for La(Ir,Rh)In 5 indicates 1/T 1 T = constant. Data at P = 019 and for La(Ir,Rh)In 5 are obtained from ref 37. .…”

mentioning

confidence: 99%

Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh0.5Ir0.5In5

Kawasaki

Sorime

et al. 2020

Commun Phys

View full text Add to dashboard Cite

show abstract

“…Figure 3a and 3b show the temperature dependence of 1/T 1 . The magnitude of 1/T 1 for CeRh 0.5 Ir 0.5 In 5 is much greater than that for the nonmagnetic reference material La(Rh,Ir)In 5 37 , due to f electron spin correlations, that are reflected in the dynamical susceptibility χ ′′ to which 1/T 1 is proportional. At P = 0, 1/T 1 exhibits a small peak at T N = 3.0 K and decreases below T c = 0.9 K 19 .…”

Section: Resultsmentioning

confidence: 86%

Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh$_{0.5}$Ir$_{0.5}$In$_5$

Kawasaki,

Oka,

Sorime

et al. 2020

Preprint

View full text Add to dashboard Cite

A fundamental problem posed from the study of correlated electron compounds, of which heavyfermion systems are prototypes, is the need to understand the physics of states near a quantum critical point (QCP). At a QCP, magnetic order is suppressed continuously to zero temperature and unconventional superconductivity often appears. Here, we report pressure (P ) -dependent 115 In nuclear quadrupole resonance (NQR) measurements on heavy-fermion antiferromagnet CeRh0.5Ir0.5In5. These experiments reveal an antiferromagnetic (AF) QCP at P AF c = 1.2 GPa where a dome of superconductivity reaches a maximum transition temperature Tc. Preceding P AF c , however, the NQR frequency νQ undergoes an abrupt increase at P * c = 0.8 GPa in the zero-temperature limit, indicating a change from localized to itinerant character of cerium's f -electron and associated smallto-large change in the Fermi surface. At P AF c where Tc is optimized, there is an unusually large fraction of gapless excitations well below Tc that implicates spin-singlet, odd-frequency pairing symmetry.

show abstract

Magnetism and superconductivity in CeRhIn5 under chemical and hydrostatic pressures

Cited by 2 publications

References 8 publications

Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh0.5Ir0.5In5

Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh0.5Ir0.5In5

Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh$_{0.5}$Ir$_{0.5}$In$_5$

Contact Info

Product

Resources

About