Y. Xue et al., “Split-ring polariton condensates as macroscopic two-level quantum systems,”10.1103/physrevresearch.3.013099__Physical Review Research, vol. 3, no. 1, Art. no. 013099, 2021, doi:10.1103/physrevresearch.3.013099 .

H. Jurgen von Bardeleben, J.-L. Cantin, U. Gerstmann, W. G. Schmidt, and T. Biktagirov, “Spin Polarization, Electron–Phonon Coupling, and Zero-Phonon Line of the NV Center in 3C-SiC,”10.1021/acs.nanolett.1c02564__Nano Letters, vol. 21, no. 19, pp. 8119–8125, 2021, doi:10.1021/acs.nanolett.1c02564 .

D. Slawig, M. Gruschwitz, U. Gerstmann, E. Rauls, and C. Tegenkamp, “Adsorption and Reaction of PbPc on Hydrogenated Epitaxial Graphene,”10.1021/acs.jpcc.1c06320__The Journal of Physical Chemistry C, vol. 125, no. 36, pp. 20087–20093, 2021, doi:10.1021/acs.jpcc.1c06320 .

M. Jain, U. Gerstmann, W. G. Schmidt, and H. Aldahhak, “Adatom mediated adsorption of            &;scp&;Nheterocyclic&;/scp&;            carbenes on Cu(111) and Au(111),”10.1002/jcc.26801__Journal of Computational Chemistry, vol. 43, no. 6, pp. 413–420, 2021, doi:10.1002/jcc.26801 .

R. Zuo et al., “Neighboring Atom Collisions in Solid-State High Harmonic Generation,”10.34133/2021/9861923__Ultrafast Science, vol. 2021, 2021, doi:10.34133/2021/9861923 .

D. Berghoff, J. Bühler, M. Bonn, A. Leitenstorfer, T. Meier, and H. Kim, “Low-field onset of Wannier-Stark localization in a polycrystalline hybrid organic inorganic perovskite,”10.1038/s41467-021-26021-4__Nature Communications, vol. 12, no. 1, Art. no. 5719, 2021, doi:10.1038/s41467-021-26021-4 .

L. H. Thong, C. Ngo, H. T. Duc, X. Song, and T. Meier, “Microscopic analysis of high harmonic generation in semiconductors with degenerate bands,”10.1103/physrevb.103.085201__Physical Review B, vol. 103, p. 085201, 2021, doi:10.1103/physrevb.103.085201 .

F. Schmidt, A. L. Kozub, U. Gerstmann, W. G. Schmidt, and A. Schindlmayr, “Electron polarons in lithium niobate: Charge localization, lattice deformation, and optical response,”10.3390/cryst11050542__Crystals, vol. 11, p. 542, 2021, doi:10.3390/cryst11050542 .

T. Meier, J. Paul, H. Rose, J. K. Wahlstrand, and A. D. Bristow, “Coherent and incoherent contribution of population dynamics of semiconductor exciton-polaritons,”10.1364/FIO.2021.FW5C.6__presented at the Frontiers in Optics 2021, Washington, DC United States, 2021, doi:10.1364/FIO.2021.FW5C.6 .

M. Reichelt et al., “Controlling the emission time of photon echoes by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles,”10.1117/12.2576887__in Ultrafast Phenomena and Nanophotonics XXV, 2021, vol. 11684, doi:10.1117/12.2576887 .

F. F. Murzakhanov et al., “Hyperfine and nuclear quadrupole splitting of the NV ground state in 4H-SiC,”10.1103/physrevb.103.245203__Physical Review B, vol. 103, p. 245203, 2021, doi:10.1103/physrevb.103.245203 .

H. Aldahhak et al., “Electronic structure of the Si(111)3×3B surface from theory and photoemission spectroscopy,”10.1103/physrevb.103.035303__Physical Review B, vol. 103, p. 035303, 2021, doi:10.1103/physrevb.103.035303 .

H. Rose, D. V. Popolitova, O. V. Tikhonova, T. Meier, and P. Sharapova, “Dark-state and loss-induced phenomena in the quantum-optical regime of 9b-type three-level systems,”10.1103/physreva.103.013702__Physical Review A, vol. 103, Art. no. 013702, 2021, doi:10.1103/physreva.103.013702 .

D. B. Belobo and T. Meier, “Approximate nonlinear wave solutions of the coupled two-component Gross–Pitaevskii equations with spin–orbit interaction,”10.1088/1367-2630/abf3ed__New Journal of Physics, vol. 23, Art. no. 043045, 2021, doi:10.1088/1367-2630/abf3ed .

T. T. N. Nguyen, T. Sollfrank, C. Tegenkamp, E. Rauls, and U. Gerstmann, “Impact of screening and relaxation on weakly coupled two-dimensional heterostructures,”10.1103/physrevb.103.l201408__Physical Review B, vol. 103, p. L201408, 2021, doi:10.1103/physrevb.103.l201408 .

S. Neufeld, A. Bocchini, and W. G. Schmidt, “Potassium titanyl phosphate Z- and Y-cut surfaces from density-functional theory,”10.1103/physrevmaterials.5.064407__Physical Review Materials, 2021, doi:10.1103/physrevmaterials.5.064407 .

J. Plaickner, E. Speiser, C. Braun, W. G. Schmidt, N. Esser, and S. Sanna, “Surface localized phonon modes at the Si(553)-Au nanowire system,”10.1103/physrevb.103.115441__Physical Review B, 2021, doi:10.1103/physrevb.103.115441 .

L. Meier and W. G. Schmidt, “GaInP/AlInP(001) Interfaces from Density Functional Theory,”10.1002/pssb.202100462__physica status solidi (b), vol. 259, no. 1, Art. no. 2100462, 2021, doi:10.1002/pssb.202100462 .

I. A. Ruiz Alvarado, M. Karmo, E. Runge, and W. G. Schmidt, “InP and AlInP(001)(2 × 4) Surface Oxidation from Density Functional Theory,”10.1021/acsomega.0c06019__ACS Omega, pp. 6297–6304, 2021, doi:10.1021/acsomega.0c06019 .

N. Bidaraguppe Ramesh, F. Schmidt, and A. Schindlmayr, “Lattice parameters and electronic band gap of orthorhombic potassium sodium niobate K0.5N.5NbO3 from density-functional theory,”10.1140/epjb/s10051-021-00179-8__The European Physical Journal B, vol. 94, no. 8, Art. no. 169, 2021, doi:10.1140/epjb/s10051-021-00179-8 .