Numerical data for "Fragility of the magnetic order in the prototypical altermagnet RuO2"
Creators
Description
This dataset contains the numerical data accompanying the "Fragility of the magnetic order in the prototypical altermagnet RuO2" paper.
Computations were performed using VASP 6.3.2 and WIEN2k 21.1 packages.
It contains the data and gnuplot scripts used to plot Figures 2-6, i.e the dependence of the total energy and local magnetization at the Ru site as a function of the effective Hubbard U parameter for RuO2, the magnetic anisotropy as a function of angle, projected non-magnetic density of states onto Ru d-orbitals, spin-polarized total density of states for majority spin as a function of the effective U parameter and the dependence of local atomic magnetization on hole doping and the effective U parameter.
To produce the figure one simply runs gnuplot script.gnu
command with script.gnu
a placeholder for a relevant script name.
In the case of VASP computations, the total energy is reported in OUTCAR
file at the line containing the free energy TOTEN =
token, the local magnetization in the block after the magnetization
token, the effective U parameter is Ueff = U - J
, where U and J are defined by LDAUU
and LDAUJ
tokens in the INCAR
file and the hole doping is defined by altering the number of electrons in the system using NELECT
token in the INCAR
file.
The density of states is calculated using WIEN2k and is stored in case.dos?ev*
files with case
being a filename, ?
be replaced with a number and *
be either empty, up
or dn
.
In Fig. 2 in order to make the plot visually clearer, we subtracted from both energy relations an arbitrary linear function of U; the exact values of a and b here are completely immaterial and we could have chosen other similar values. In LDA+U calculation, one cannot compare total energies (as opposed to the total moments) with differen Us, only different calculations with the same U. The message of Fig. 2 was to compare energies with the same U between magnetic and nonmagnetic LDA+U solutions.
The following POTCARs were used for VASP calculations:md5sum name and location
91f4c7aab413b97880dee28c8d363ff5 potpaw_PBE.52/Ru_sv/POTCAR
38ce74bba1194bccd788f22d688bfc65 potpaw_PBE.52/O/POTCAR
The directory structure is as follows:
DOS
contains the data related to the density of states, as plotted in Fig. 4 (theNM_PDOS
subdirectory) and Fig. 5 (theDOS_U
subdirectory withGGA_XY
directories corresponding to the value ofUeff
equal to X.Y eV)Magnetic_anisotropy
contains the data for Fig. 3 with the dependence of the total energy on the orientation of the local magnetic momentMM_vs_U_eff_vs_NELEC
contains the data relevant for Fig. 6: subdirectoriesN=XX.X0U=Y.Y
correspond to the calculation withXX.X
electrons andUeff
equal to Y.Y eVTotal_energy_and_magnetization_vs_U_eff
provides the data behind Fig. 2, withIncreasing_U_eff
andDecreasing_U_eff
containing the series calculations of increasing and decreasingUeff
value with subdirectoriesdn_UX.XX
with the value ofUeff
being set to X.XX eVRuO2.vasp
is the used crystal structure in the POSCAR format
Files
Numerical_data_Fragility_of_the_magnetic_order_in_the_prototypical_altermagnet_RuO2.zip
Additional details
Related works
- Is referenced by
- Publication: arXiv:2310.06909 (arXiv)
- Journal Article: 10.1103/PhysRevB.109.134424 (DOI)