The Crystal Field Potential of PrOs4Sb12: Consequences for Superconductivity
E. A. Goremychkin, R. Osborn, E. D. Bauer, M. B. Maple, N. A. Frederick, W. M. Yuhasz, F. M. Woodward, J. W. Lynn
Abstract
The results of inelastic neutron scattering provide a solution for the crystal field level scheme in PrOs4Sb12 in which the ground state in the cubic crystal field potential of Th symmetry is a Gamma1 singlet. The conduction electron mass enhancement is consistent with inelastic exchange scattering, and we propose that inelastic quadrupolar, or aspherical Coulomb, scattering is responsible for enhancing the superconducting transition temperature. PrOs4Sb12 appears to be the first compound in which aspherical Coulomb scattering is strong enough to overcome magnetic pair-breaking and increase Tc.
Create a lesson
Related papers
Metallic electron crystals in rhombohedral graphene as a bridge to twisted WSe2
Wentai Deng, Chenyuan Li, Naoto Nakatsuji et al.
Anyons at impurities: Fractional charge measurement and "wrong sign" binding
Haydn S. Adlong, Arthur Christianen, Atac Imamoglu et al.
Large-Tiny Spin-Stripe SDW Order in La3Ni2O7 via 139La-NQR Spectroscopy: Reconsideration Based on the Am2m Structure
Mitsuharu Yashima, Hongnam Lee, Takumi Ino et al.
Influence of the Néel vector on the bulk electronic structure of MnTe measured from the (1 1 00) surface
D. A. Usanov, A. B. Hellenes, S. Hahn et al.
Disorder-Induced Griffiths like Phase and Charge Localization in Sr2FeRuO6
Koustav Pal, Shuvendu Ghosh, I. Das
Interplay of electric field and electronic correlations in pairing competition in bilayer nickelates
Yanmei Cai, Yicheng Xiong, Ying Liang et al.