DOI: 10.48436/dfgrt-fjc87
title: Data for the publication "Ce3⁢Bi4⁢Ni3 – A large hybridization-gap variant of Ce3⁢Bi4⁢Pt3"

description: 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).