4f-Virtual-Bound-State Formation in CeAl3at Low Temperatures

Electronic, magnetic, and electric transport properties of Ce3Rh4Sn13and CeŚlebarski1, White2, Fijałkowski3 et al. 2012Phys. Rev. B

“…44 The obtained value for A is consistent with other nonmagnetic HF systems, e.g., for CeSn 3 A = 0.001 µΩcm/K 2 , 45 for CePd 3 A = 0.1 µΩcm/K 2 , 46 and for CeAl 3 A = 35 µΩcm/K 2 . 47 The ρ ∼ T 2 behavior is also predicted within the paramagnon model 48 for magnetic HF systems. The resistivity of Ce 3 M 4 Sn 13 , when ρ(T ) is subtracted by the phonon contribution does not show ∆ρ ∼ T 2 behavior.…”

Singular or non-Fermi liquids

“…2. Speciÿc heat of CeAl 3 at low temperatures from Andres et al [28]. The slope of the linear speciÿc heat is about 3000 times that of the linear speciÿc heat of, say, Cu.…”

“…27 The reader should be warned that many di erent conventions abound in the literature. 28 The Klein factors connect states di ering by one electron. When the thermodynamic limit is taken in a gapless system, there is, for all practical purposes (the computation of correlation functions), no di erences between states containing N and N ± 1 particles.…”

“…The so-called Klein factors 28 F r are chosen such that the proper fermionic anticommutation relations are reproduced. The exponential envelope exp[i r (x)] represents the slow bosonic collective degrees of freedom which dress the rapidly oscillating part F r exp[ik F x] describing the energetic particle excitations near the Fermi points.…”

Electronic structure of correlated electron materials from photoemission in high-quality single crystals

“…It is also well established that indeed it is the f-electrons that are responsible for the Since their discovery in the mid-seventies [1,2], unusual properties [4]. the unusual properties of heavy fermions have Magnetic susceptibility (x) measurements of sparked an avalanche of research over the last two heavy fermion compounds generally yield a Curiedecades.…”