Heavy fermion behavior in PrRh2B2C: Excitonic mass enhancement

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dc.creatorAnand, V. K.
dc.creatorHossain, Z.
dc.creatorChen, G.
dc.creatorNicklas, M.
dc.creatorGeibel, C.
dc.date2009-05-20
dc.date.accessioned2026-07-07T13:16:46Z
dc.date.available2026-07-07T13:16:46Z
dc.descriptionWe report magnetic and transport properties of a new quaternary borocarbide PrRh$_{2}$B$_{2}$C, based on magnetisation, resistivity and specific heat studies. This compound forms in LuNi$_{2}$B$_{2}$C-type tetragonal structure (space group {\it I4/mmm}) and does not exhibit magnetic ordering or superconductivity down to 0.5 K. The crystal field analysis of specific heat data suggests a singlet ground state in this compound. The high value of the Sommerfeld coefficient, $γ$ $\approx$ 250 mJ/mole K$^{2}$, together with a singlet ground state suggests that the heavy fermion behaviour in PrRh$_{2}$B$_{2}$C results from the interaction of the conduction electrons with the low lying crystal field excitations. No signature of magnetic ordering or superconductivity is observed in PrRh$_{2}$B$_{2}$C under the application of pressure up to 23 kbar.
dc.description10 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0905.3266
dc.identifierhttp://arxiv.org/abs/0905.3266
dc.identifierPhys. Rev. B 79 (2009) 113107
dc.identifierdoi:10.1103/PhysRevB.79.113107
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230898
dc.subjectStrongly Correlated Electrons
dc.titleHeavy fermion behavior in PrRh2B2C: Excitonic mass enhancement
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