Data for the publication "Ce3⁢Bi4⁢Ni3 – A large hybridization-gap variant of Ce3⁢Bi4⁢Pt3"

Context and methodology

• This repository contains the data behind the figures in the publication "Ce3⁢Bi4⁢Ni3 – A large hybridization-gap variant of Ce3⁢Bi4⁢Pt3" (10.1103/PhysRevResearch.6.0).
• The publication presents and discusses the synthesis and physical properties of the new heavy fermion compound Ce3⁢Bi4⁢Ni3, which is an isoelectronic analog of the prototypical Kondo insulator Ce3Bi4Pt3 and the Weyl-Kondo semimetal Ce3Bi4Pd3.
• This dataset was created manually by collecting and ordering the relevant data.

Technical details

• For each figure there is a corresponding file containing the data shown in the figure. Data files are of type DAT and named logically after the figure they correspond to. 
• The dataset does not require any specific software for reading.

Description of the data

• fig1d.dat contains a room-temperature powder XRD pattern of Ce3Bi4Ni3 ("Yobs") together with the refinement ("Ycalc"), the difference between measured data and refinement ("Yobs-Ycalc"), as well as the positions of the expected refraction peaks ("Bragg_position") all as a function of the angle ("2 theta").
• fig1e.dat contains the lattice parameter ("a") for the compounds Ce3Bi4Ni3 and Ce3Bi4(Ni0.19Pd0.81)3.
• fig2.dat contains an EDX spectrum ("counts") as a function of energy ("E") corresponding to one point measurement of a polished Ce3Bi4Ni3 crystal.
• fig3a.dat contains the electrical resistivity ("rho_xx") of Ce3Bi4Ni3 as a function of temperature ("T") in zero magnetic field.
• fig3b.dat contains the Hall coefficient ("RH") of Ce3Bi4Ni3 as a function of temperature ("T").
• fig3c.dat contains the electrical resistivity data in Arrhenius form ("2*ln[R/R(300K]" as a function of inverse temperature "1/T") together with a linear fit to the data above 100 K ("linear fit").
• fig3d.dat contains the Hall coefficient data in Arrhenius form ("2*ln RH" as a function of inverse temperature "1/T") together with a linear fit to the data above 100 K ("linear fit").
• fig4a.dat contains the magnetic susceptibility ("chi") of Ce3Bi4Ni3 as a function of temperature ("T") measured with a magnetic field of 1 T.
• fig4b.dat contains the inverse magnetic susceptibility ("1/chi") as a function of temperature ("T") together with a Curie-Weiss fit ("linear fit") at high temperatures.
• fig4c.dat contains the magnetization ("M") of Ce3Bi4Ni3 as a function of magnetic field ("H") at 2 K, 10 K, 100 K, and 300 K.
• fig5.dat contains the specific heat ("C") of Ce3Bi4Ni3 as a function of temperature ("T") together with a fit ("Cph+gap fit") corresponding to the Debye model plus an additional Schottky-like electronic contribution derived for Kondo insulators.
• fig5inset.dat contains the low temperature specific heat divided by temperature ("C/T") as a function of temperature squared ("T^2") together with the fit from Fig5 divided by temperature ("Cph+gap fit/T") and additionally shifted to match the measured data ("Cph+gap fit/T shifted").
• fig6a.dat contains the electrical resistances of Ce3Bi4Ni3 and Ce3Bi4(Ni0.19Pd0.81)3 normalized to their respective room temperature value ("R/R300K")  as a function of temperature ("T").
• fig6b.dat contains the magnetic susceptibility ("chi") of Ce3Bi4Ni3 as a function of temperature ("T").
• fig7a.dat contains the characteristic temperature scales corresponding to the position of the maximum of the magnetic susceptibility ("T^chi_max"), the Kondo temperature ("T_K") and the Kondo energy gap ("Delta/k_B") as well as the inverse residual resistivity ratio ("iRRR") for the Ce3Bi4X3 series (X = Ni, Pd, Pt).
• fig7b.dat contains the Kondo energy gap ("Delta/k_B") as function of the d-electron density of states at the Fermi level ("d DOS (E_F)") for the Ce3Bi4X3 series (X = Ni, Pd, Pt).