Update DFTK requirement from 0.7 to 0.7, 0.8 in /docs

[dependabot]

Updates the requirements on DFTK to permit the latest version.

Release notes

Sourced from DFTK's releases.

v0.8.0

DFTK v0.8.0

Diff since v0.7.26

Note that this release increases the minor version and contains a number of breaking changes:

• The pseudopotential repository shipped with DFTK is now deprecated and slated for removal in the next DFTK release. Please rely on the PseudoPotentialData package for selecting pseudopotentials. Concretely this means that list_psp will be removed and load_psp will only be working with full paths to pseduopotential data files or e.g. combinations of PseudoPotentialData.PseudoFamily objects and an element symbol.

• The kgrid_from_maximal_spacing and kgrid_from_minimal_n_kpoints functions are now depreacted and will be removed in the future. Instead all places in DFTK accepting an explicit kgrid now also accept values KgridDensity and KgridMinimalNumber, which achieve the same behaviour: a kgrid of at least the given density or at least the given total number of reducible k-points. For example to construct a PlaneWaveBasis with a k-point density of 0.2 per bohr, use PlaneWaveBasis(model; kgrid=KgridDensity(0.2/u"bohr")). The actual number of k-points is then determined by looking at the atomistic system contained in the model. This change is done, such that DFTKCalculator objects can be constructed using KgridDensity, which will make the number of k-points adapt automatically to the structure on which the DFT calculation is invoked.

• The kshift argument in PlaneWaveBasis is now deprecated. Use the MonkhorstPack data structure to request a shifted kgrid in DFTK.

• plot_bandstructure(basis) no longer works. Instead first compute the bands along a k-line using bands = compute_bands(basis) then call plot_bandstructure(bands) afterwards.

• The DFTK-internal implementation of the LOBPCG eigensolver algorithm has been moved out to the external package LOBPCGEigensolver.jl.

Merged pull requests:

• Advertise ACWF results (#1231) (@​Technici4n)
• Extract LOBPCG eigensolver into standalone LOBPCGEigensolver.jl package (#1340) (@​antoine-levitt)
• CompatHelper: bump compat for TimerOutputs to 1, (keep existing compat) (#1353) (@​github-actions[bot])
• Fix the k-point set used by the term-wise force test (#1358) (@​antoine-levitt)
• Fix GPU in nonlocal term (#1360) (@​abussy)
• Delete lowpass_for_symmetry! (#1369) (@​antoine-levitt)
• Fix NLCC force missing enforce_real! (#1370) (@​Technici4n)
• Fix profiling and type stability of DftHamiltonian multiplication (#1373) (@​Technici4n)
• Update GPU docs (incl. running on cluster) (#1374) (@​abussy)
• Update DFTKAMDGPUExt.jl (#1375) (@​abussy)
• Next minor (#1376) (@​mfherbst)

Closed issues:

• Implement a simple div(a grad u)=f solve (#1227)
• Implement the computation of periodic green functions (#1229)
• Remove lowpass_for_symmetry! (#1366)
• Mathematical Issue regarding precondprep! (#1368)
• Rename enforce_real! to drop_nyquist_frequency! (#1371)

Commits

• 4f9cf1b Next minor (#1376)
• a4da069 up
• 9c7bf7a Extract LOBPCG eigensolver into standalone LOBPCGEigensolver.jl package (#1340)
• 59090a9 CompatHelper: bump compat for TimerOutputs to 1, (keep existing compat) (#1353)
• 26d2ec6 Update GPU docs (incl. running on cluster) (#1374)
• 758fc0b Advertise ACWF results (#1231)
• 26bdce1 Update DFTKAMDGPUExt.jl (#1375)
• 9950830 Delete lowpass_for_symmetry! (#1369)
• 3ab3b61 Fix profiling and type stability of DftHamiltonian multiplication (#1373)
• d0b8ec9 Fix NLCC force missing enforce_real! (#1370)
• Additional commits viewable in compare view

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