TY - JOUR AU - Bopp, Frederik AU - Schall, Johannes AU - Bart, Nikolai AU - Vögl, Florian AU - Cullip, Charlotte AU - Sbresny, Friedrich AU - Boos, Katarina AU - Thalacker, Christopher AU - Lienhart, Michelle AU - Rodt, Sven AU - Reuter, Dirk AU - Ludwig, Arne AU - Wieck, Andreas D. AU - Reitzenstein, Stephan AU - Müller, Kai AU - Finley, Jonathan J. ID - 46133 IS - 16 JF - Physical Review B SN - 2469-9950 TI - Coherent driving of direct and indirect excitons in a quantum dot molecule VL - 107 ER - TY - JOUR AU - Gao, Ying AU - Ma, Xuekai AU - Zhai, Xiaokun AU - Xing, Chunzi AU - Gao, Meini AU - Dai, Haitao AU - Wu, Hao AU - Liu, Tong AU - Ren, Yuan AU - Wang, Xiao AU - Pan, Anlian AU - Hu, Wei AU - Schumacher, Stefan AU - Gao, Tingge ID - 48774 IS - 20 JF - Physical Review B SN - 2469-9950 TI - Single-shot spatial instability and electric control of polariton condensates at room temperature VL - 108 ER - TY - JOUR AU - Ruiz Alvarado, Isaac Azahel AU - Zare Pour, Mohammad Amin AU - Hannappel, Thomas AU - Schmidt, Wolf Gero ID - 49634 IS - 4 JF - Physical Review B SN - 2469-9950 TI - Structural fingerprints in the reflectance anisotropy of AlInP(001) VL - 108 ER - TY - JOUR AU - Praschan, Tom AU - Heinze, Dirk AU - Breddermann, Dominik AU - Zrenner, Artur AU - Walther, Andrea AU - Schumacher, Stefan ID - 30384 IS - 4 JF - Physical Review B SN - 2469-9950 TI - Pulse shaping for on-demand emission of single Raman photons from a quantum-dot biexciton VL - 105 ER - TY - JOUR AU - Zhang, Ruiming AU - Ruan, Wei AU - Yu, Junyao AU - Gao, Libo AU - Berger, Helmuth AU - Forró, László AU - Watanabe, Kenji AU - Taniguchi, Takashi AU - Ranjbar, Ahmad AU - Belosludov, Rodion V. AU - Kühne, Thomas AU - Bahramy, Mohammad Saeed AU - Xi, Xiaoxiang ID - 33679 IS - 8 JF - Physical Review B SN - 2469-9950 TI - Second-harmonic generation in atomically thin 1TTiSe2 and its possible origin from charge density wave transitions VL - 105 ER - TY - JOUR AU - Khajehpasha, Ehsan Rahmatizad AU - Finkler, Jonas A. AU - Kühne, Thomas AU - Ghasemi, Alireza ID - 33680 IS - 14 JF - Physical Review B SN - 2469-9950 TI - CENT2: Improved charge equilibration via neural network technique VL - 105 ER - TY - JOUR AU - Grisard, S. AU - Rose, Hendrik AU - Trifonov, A. V. AU - Reichhardt, R. AU - Reiter, D. E. AU - Reichelt, Matthias AU - Schneider, C. AU - Kamp, M. AU - Höfling, S. AU - Bayer, M. AU - Meier, Torsten AU - Akimov, I. A. ID - 37319 IS - 20 JF - Physical Review B SN - 2469-9950 TI - Multiple Rabi rotations of trions in InGaAs quantum dots observed by photon echo spectroscopy with spatially shaped laser pulses VL - 106 ER - TY - JOUR AU - Paul, J. AU - Rose, Hendrik AU - Swagel, E. AU - Meier, Torsten AU - Wahlstrand, J. K. AU - Bristow, A. D. ID - 37323 IS - 11 JF - Physical Review B SN - 2469-9950 TI - Coherent contributions to population dynamics in a semiconductor microcavity VL - 105 ER - TY - JOUR AU - Praschan, Tom AU - Heinze, Dirk AU - Breddermann, Dominik AU - Zrenner, Artur AU - Walther, Andrea AU - Schumacher, Stefan ID - 40431 IS - 4 JF - Physical Review B SN - 2469-9950 TI - Pulse shaping for on-demand emission of single Raman photons from a quantum-dot biexciton VL - 105 ER - TY - JOUR AB - Conductive domain walls (DWs) in insulating ferroelectrics have recently attracted considerable attention due to their unique topological, optical, and electronic properties, and offer potential applications such as in memory devices or rewritable circuitry. The electronic properties of DWs can be tuned by the application of strain, hence controlling the charge carrier density at DWs. In this paper, we study the influence of uniaxial stress on the conductivity of DWs in the bulk single crystal lithium niobate (LiNbO3). Using conductive atomic force microscopy, we observe a large asymmetry in the conductivity of DWs, where only negatively screened walls, so called head-to-head DWs, are becoming increasingly conductive, while positively screened, tail-to-tails DWs, show a decrease in conductivity. This asymmetry of DW conductivity agrees with our theoretical model based on the piezoelectric effect. In addition, we observed that the current in the DW increases up to an order of magnitude for smaller compressive stresses of 100 MPa. This response of DWs remained intact for multiple stress cycles over two months, opening a path for future applications. AU - Singh, Ekta AU - Beccard, Henrik AU - Amber, Zeeshan H. AU - Ratzenberger, Julius AU - Hicks, Clifford W. AU - Rüsing, Michael AU - Eng, Lukas M. ID - 47986 IS - 14 JF - Physical Review B SN - 2469-9950 TI - Tuning domain wall conductivity in bulk lithium niobate by uniaxial stress VL - 106 ER - TY - JOUR AU - Aldahhak, Hazem AU - Hogan, Conor AU - Lindner, Susi AU - Appelfeller, Stephan AU - Eisele, Holger AU - Schmidt, Wolf Gero AU - Dähne, Mario AU - Gerstmann, Uwe AU - Franz, Martin ID - 21094 JF - Physical Review B SN - 2469-9950 TI - Electronic structure of the Si(111)3×3R30°−B surface from theory and photoemission spectroscopy ER - TY - JOUR AU - Mund, Johannes AU - Yakovlev, Dmitri R. AU - Sadofev, Sergey AU - Meier, Cedrik AU - Bayer, Manfred ID - 22214 JF - Physical Review B SN - 2469-9950 TI - Second harmonic generation on excitons in ZnO/(Zn,Mg)O quantum wells with built-in electric fields VL - 103 ER - TY - JOUR AU - Thong, Le Huu AU - Ngo, Cong AU - Duc, Huynh Thanh AU - Song, Xiaohong AU - Meier, Torsten ID - 23477 JF - Physical Review B SN - 2469-9950 TI - Microscopic analysis of high harmonic generation in semiconductors with degenerate bands VL - 103 ER - TY - JOUR AU - Murzakhanov, F. F. AU - Yavkin, B. V. AU - Mamin, G. V. AU - Orlinskii, S. B. AU - von Bardeleben, H. J. AU - Biktagirov, Timur AU - Gerstmann, Uwe AU - Soltamov, V. A. ID - 29749 JF - Physical Review B SN - 2469-9950 TI - Hyperfine and nuclear quadrupole splitting of the NV− ground state in 4H-SiC VL - 103 ER - TY - JOUR AU - Aldahhak, Hazem AU - Hogan, Conor AU - Lindner, Susi AU - Appelfeller, Stephan AU - Eisele, Holger AU - Schmidt, Wolf Gero AU - Dähne, Mario AU - Gerstmann, Uwe AU - Franz, Martin ID - 22010 JF - Physical Review B SN - 2469-9950 TI - Electronic structure of the Si(111)3×3R30∘−B surface from theory and photoemission spectroscopy VL - 103 ER - TY - JOUR AU - Nguyen, T. T. Nhung AU - Sollfrank, T. AU - Tegenkamp, C. AU - Rauls, E. AU - Gerstmann, Uwe ID - 22881 JF - Physical Review B SN - 2469-9950 TI - Impact of screening and relaxation on weakly coupled two-dimensional heterostructures VL - 103 ER - TY - JOUR AU - Plaickner, Julian AU - Speiser, Eugen AU - Braun, Christian AU - Schmidt, Wolf Gero AU - Esser, Norbert AU - Sanna, Simone ID - 22008 JF - Physical Review B SN - 2469-9950 TI - Surface localized phonon modes at the Si(553)-Au nanowire system ER - TY - JOUR AB - Employing the ultrafast control of electronic states of a semiconductor quantum dot in a cavity, we introduce an approach to achieve on-demand emission of single photons with almost perfect indistinguishability and photon pairs with near ideal entanglement. Our scheme is based on optical excitation off resonant to a cavity mode followed by ultrafast control of the electronic states using the time-dependent quantum-confined Stark effect, which then allows for cavity-resonant emission. Our theoretical analysis considers cavity-loss mechanisms, the Stark effect, and phonon-induced dephasing, allowing realistic predictions for finite temperatures. AU - Bauch, David AU - Heinze, Dirk Florian AU - Förstner, Jens AU - Jöns, Klaus AU - Schumacher, Stefan ID - 23816 JF - Physical Review B KW - tet_topic_qd SN - 2469-9950 TI - Ultrafast electric control of cavity mediated single-photon and photon-pair generation with semiconductor quantum dots VL - 104 ER - TY - JOUR AU - Barkhausen, Franziska AU - Pukrop, Matthias AU - Schumacher, Stefan AU - Ma, Xuekai ID - 21359 IS - 7 JF - Physical Review B SN - 2469-9950 TI - Structuring coflowing and counterflowing currents of polariton condensates in concentric ring-shaped and elliptical potentials VL - 103 ER - TY - JOUR AU - Krauss-Kodytek, L. AU - Hannes, W.-R. AU - Meier, Torsten AU - Ruppert, C. AU - Betz, M. ID - 37333 IS - 8 JF - Physical Review B SN - 2469-9950 TI - Nondegenerate two-photon absorption in ZnSe: Experiment and theory VL - 104 ER - TY - JOUR AU - Krauss-Kodytek, L. AU - Hannes, Wolf-Rüdiger AU - Meier, Torsten AU - Ruppert, C. AU - Betz, M. ID - 23472 IS - 8 JF - Physical Review B SN - 2469-9950 TI - Nondegenerate two-photon absorption in ZnSe: Experiment and theory VL - 104 ER - TY - JOUR AB - Broadband coherent anti-Stokes Raman scattering (B-CARS) has emerged in recent years as a promising chemosensitive high-speed imaging technique. B-CARS allows for the detection of vibrational sample properties in analogy to spontaneous Raman spectroscopy, but also makes electronic sample environments accessible due to its resonant excitation mechanism. Nevertheless, this technique has only gained interest in the biomedical field so far, whereas CARS investigations on solid-state materials are rare and concentrate on layered, two-dimensional materials such as graphene and hexagonal boron nitride . In this work, we discuss the specific properties of this technique when applied to single-crystalline samples, with respect to signal generation, phase matching, and selection rules in the model systems lithium niobate and lithium tantalate. Via polarized B-CARS measurements and subsequent phase retrieval, we validate the predicted selection rules, unequivocally assign the phonons of the A1(TO), E(TO) and A1(LO) branches to the detected CARS peaks, and address differences in spontaneous Raman spectroscopy concerning peak frequencies and scattering efficiencies. We thus establish this technique for future investigations of solid-state materials, specifically in the field of ferroelectric single crystals. AU - Hempel, Franz AU - Reitzig, Sven AU - Rüsing, Michael AU - Eng, Lukas M. ID - 47979 IS - 22 JF - Physical Review B SN - 2469-9950 TI - Broadband coherent anti-Stokes Raman scattering for crystalline materials VL - 104 ER - TY - JOUR AU - Eckhoff, Marco AU - Blöchl, Peter E. AU - Behler, Jörg ID - 19503 JF - Physical Review B KW - pc2-ressources SN - 2469-9950 TI - Hybrid density functional theory benchmark study on lithium manganese oxides ER - TY - JOUR AU - Geier, M. AU - Freudenfeld, J. AU - Silva, J. T. AU - Umansky, V. AU - Reuter, Dirk AU - Wieck, A. D. AU - Brouwer, P. W. AU - Ludwig, S. ID - 17435 JF - Physical Review B SN - 2469-9950 TI - Electrostatic potential shape of gate-defined quantum point contacts ER - TY - JOUR AU - Ebler, C. AU - Labud, P. A. AU - Rai, A. K. AU - Reuter, Dirk AU - Wieck, A. D. AU - Ludwig, A. ID - 17437 JF - Physical Review B SN - 2469-9950 TI - Electrical detection of excitonic states by time-resolved conductance measurements ER - TY - JOUR AU - Li, Yao AU - Li, Guangyao AU - Zhai, Xiaokun AU - Xiong, Shifu AU - Liu, Hongjun AU - Wang, Xiao AU - Chen, Haitao AU - Gao, Ying AU - Zhang, Xiu AU - Liu, Tong AU - Ren, Yuan AU - Ma, Xuekai AU - Fu, Hongbing AU - Gao, Tingge ID - 30965 IS - 24 JF - Physical Review B SN - 2469-9950 TI - Spin splitting in a MoS2 monolayer induced by exciton interaction VL - 101 ER - TY - JOUR AU - von Bardeleben, H. J. AU - Rauls, E. AU - Gerstmann, Uwe ID - 40444 IS - 18 JF - Physical Review B SN - 2469-9950 TI - Carbon vacancy-related centers in 3C-silicon carbide: Negative-U properties and structural transformation VL - 101 ER - TY - JOUR AU - Azadi, Sam AU - Kühne, Thomas D. ID - 15739 JF - Physical Review B SN - 2469-9950 TI - Unconventional phase III of high-pressure solid hydrogen VL - 100 ER - TY - JOUR AU - Klümper, A. AU - Nuding, W. AU - Sedrakyan, A. ID - 14033 JF - Physical Review B SN - 2469-9950 TI - Random network models with variable disorder of geometry VL - 100 ER - TY - JOUR AU - Vondran, J. AU - Spitzer, F. AU - Bayer, M. AU - Akimov, I. A. AU - Trautmann, Alexander AU - Reichelt, Matthias AU - Meier, Cedrik AU - Weber, N. AU - Meier, Torsten AU - André, R. AU - Mariette, H. ID - 14544 IS - 15 JF - Physical Review B SN - 2469-9950 TI - Spatially asymmetric transients of propagating exciton-polariton modes in a planar CdZnTe/CdMgTe guiding structure VL - 100 ER - TY - JOUR AU - Nicholson, C. W. AU - Puppin, M. AU - Lücke, A. AU - Gerstmann, Uwe AU - Krenz, Marvin AU - Schmidt, Wolf Gero AU - Rettig, L. AU - Ernstorfer, R. AU - Wolf, M. ID - 29746 IS - 15 JF - Physical Review B SN - 2469-9950 TI - Excited-state band mapping and momentum-resolved ultrafast population dynamics in In/Si(111) nanowires investigated with XUV-based time- and angle-resolved photoemission spectroscopy VL - 99 ER - TY - JOUR AU - Hannes, Wolf-Rüdiger AU - Meier, Torsten ID - 13284 IS - 12 JF - Physical Review B SN - 2469-9950 TI - Higher-order contributions and nonperturbative effects in the nondegenerate nonlinear optical absorption of semiconductors using a two-band model VL - 99 ER - TY - JOUR AU - Vondran, J. AU - Spitzer, F. AU - Bayer, M. AU - Akimov, I. A. AU - Trautmann, Alexander AU - Reichelt, Matthias AU - Meier, Cedrik AU - Weber, N. AU - Meier, Torsten AU - André, R. AU - Mariette, H. ID - 22887 IS - 15 JF - Physical Review B SN - 2469-9950 TI - Spatially asymmetric transients of propagating exciton-polariton modes in a planar CdZnTe/CdMgTe guiding structure VL - 100 ER - TY - JOUR AU - Duc, Huynh Thanh AU - Ngo, Cong AU - Meier, Torsten ID - 13283 IS - 4 JF - Physical Review B SN - 2469-9950 TI - Ballistic photocurrents in semiconductor quantum wells caused by the excitation of asymmetric excitons VL - 100 ER - TY - JOUR AU - Evers, E. AU - Belykh, V. V. AU - Kopteva, N. E. AU - Yugova, I. A. AU - Greilich, A. AU - Yakovlev, D. R. AU - Reuter, Dirk AU - Wieck, A. D. AU - Bayer, M. ID - 7008 IS - 7 JF - Physical Review B SN - 2469-9950 TI - Decay and revival of electron spin polarization in an ensemble of (In,Ga)As quantum dots VL - 98 ER - TY - JOUR AU - Zhukov, E. A. AU - Kirstein, E. AU - Smirnov, D. S. AU - Yakovlev, D. R. AU - Glazov, M. M. AU - Reuter, Dirk AU - Wieck, A. D. AU - Bayer, M. AU - Greilich, A. ID - 7021 IS - 12 JF - Physical Review B SN - 2469-9950 TI - Spin inertia of resident and photoexcited carriers in singly charged quantum dots VL - 98 ER - TY - JOUR AU - Smirnov, D. S. AU - Zhukov, E. A. AU - Kirstein, E. AU - Yakovlev, D. R. AU - Reuter, Dirk AU - Wieck, A. D. AU - Bayer, M. AU - Greilich, A. AU - Glazov, M. M. ID - 6505 IS - 12 JF - Physical Review B SN - 2469-9950 TI - Theory of spin inertia in singly charged quantum dots VL - 98 ER - TY - JOUR AU - Lichtenstein, T. AU - Mamiyev, Z. AU - Braun, C. AU - Sanna, S. AU - Schmidt, Wolf Gero AU - Tegenkamp, C. AU - Pfnür, H. ID - 13408 IS - 16 JF - Physical Review B SN - 2469-9950 TI - Probing quasi-one-dimensional band structures by plasmon spectroscopy VL - 97 ER - TY - JOUR AU - Biktagirov, Timur AU - Schmidt, Wolf Gero AU - Gerstmann, Uwe ID - 13409 IS - 11 JF - Physical Review B SN - 2469-9950 TI - Calculation of spin-spin zero-field splitting within periodic boundary conditions: Towards all-electron accuracy VL - 97 ER - TY - JOUR AU - Halbig, B. AU - Liebhaber, M. AU - Bass, U. AU - Geurts, J. AU - Speiser, E. AU - Räthel, J. AU - Chandola, S. AU - Esser, N. AU - Krenz, Marvin AU - Neufeld, Sergej AU - Schmidt, Wolf Gero AU - Sanna, S. ID - 13411 IS - 3 JF - Physical Review B SN - 2469-9950 TI - Vibrational properties of the Au-(3×3)/Si(111) surface reconstruction VL - 97 ER - TY - JOUR AU - Lichtenstein, T. AU - Mamiyev, Z. AU - Braun, Christian AU - Sanna, S. AU - Schmidt, Wolf Gero AU - Tegenkamp, C. AU - Pfnür, H. ID - 13430 IS - 16 JF - Physical Review B SN - 2469-9950 TI - Probing quasi-one-dimensional band structures by plasmon spectroscopy VL - 97 ER - TY - JOUR AU - Breddermann, Dominik AU - Praschan, Tom AU - Heinze, Dirk Florian AU - Binder, Rolf AU - Schumacher, Stefan ID - 13351 IS - 12 JF - Physical Review B SN - 2469-9950 TI - Microscopic theory of cavity-enhanced single-photon emission from optical two-photon Raman processes VL - 97 ER - TY - JOUR AU - Biktagirov, Timur AU - Schmidt, Wolf Gero AU - Gerstmann, Uwe AU - Yavkin, Boris AU - Orlinskii, Sergei AU - Baranov, Pavel AU - Dyakonov, Vladimir AU - Soltamov, Victor ID - 13403 IS - 19 JF - Physical Review B SN - 2469-9950 TI - Polytypism driven zero-field splitting of silicon vacancies in 6H-SiC VL - 98 ER - TY - JOUR AU - Braun, Christian AU - Gerstmann, Uwe AU - Schmidt, Wolf Gero ID - 13404 IS - 12 JF - Physical Review B SN - 2469-9950 TI - Spin pairing versus spin chains at Si(553)-Au surfaces VL - 98 ER - TY - JOUR AU - Ivek, Tomislav AU - Beyer, Rebecca AU - Badalov, Sabuhi AU - Čulo, Matija AU - Tomić, Silvia AU - Schlueter, John A. AU - Zhilyaeva, Elena I. AU - Lyubovskaya, Rimma N. AU - Dressel, Martin ID - 19217 JF - Physical Review B SN - 2469-9950 TI - Metal-insulator transition in the dimerized organic conductor κ−(BEDT-TTF)2Hg(SCN)2Br ER - TY - JOUR AU - Kuznetsova, M. S. AU - Cherbunin, R. V. AU - Gerlovin, I. Ya. AU - Ignatiev, I. V. AU - Verbin, S. Yu. AU - Yakovlev, D. R. AU - Reuter, Dirk AU - Wieck, A. D. AU - Bayer, M. ID - 7028 IS - 15 JF - Physical Review B SN - 2469-9950 TI - Spin dynamics of quadrupole nuclei in InGaAs quantum dots VL - 95 ER - TY - JOUR AB - We report on the coherent optical response from an ensemble of (In,Ga)As quantum dots (QDs) embedded in a planar Tamm-plasmon microcavity with a quality factor of approximately 100. Significant enhancement of the light-matter interaction is demonstrated under selective laser excitation of those quantum dots which are in resonance with the cavity mode. The enhancement is manifested through Rabi oscillations of the photon echo, demonstrating coherent control of excitons with picosecond pulses at intensity levels more than an order of magnitude smaller as compared with bare quantum dots. The decay of the photon echo transients is weakly changed by the resonator, indicating a small decrease of the coherence time T2 which we attribute to the interaction with the electron plasma in the metal layer located close (40 nm) to the QD layer. Simultaneously we see a reduction of the population lifetime T1, inferred from the stimulated photon echo, due to an enhancement of the spontaneous emission by a factor of 2, which is attributed to the Purcell effect, while nonradiative processes are negligible, as confirmed from time-resolved photoluminescence. AU - Salewski, M. AU - Poltavtsev, S. V. AU - Kapitonov, Yu. V. AU - Vondran, J. AU - Yakovlev, D. R. AU - Schneider, C. AU - Kamp, M. AU - Höfling, S. AU - Oulton, R. AU - Akimov, I. A. AU - Kavokin, A. V. AU - Bayer, M. ID - 6541 IS - 3 JF - Physical Review B SN - 2469-9950 TI - Photon echoes from (In,Ga)As quantum dots embedded in a Tamm-plasmon microcavity VL - 95 ER - TY - JOUR AU - Weber, Nils AU - Protte, Maximilian AU - Walter, Felicitas AU - Georgi, Philip AU - Zentgraf, Thomas AU - Meier, Cedrik ID - 682 IS - 20 JF - Physical Review B SN - 2469-9950 TI - Double resonant plasmonic nanoantennas for efficient second harmonic generation in zinc oxide VL - 95 ER - TY - JOUR AU - Riefer, A. AU - Schmidt, Wolf Gero ID - 13414 IS - 23 JF - Physical Review B SN - 2469-9950 TI - Solving the Bethe-Salpeter equation for the second-harmonic generation in Zn chalcogenides VL - 96 ER - TY - JOUR AU - Landmann, M. AU - Rauls, E. AU - Schmidt, Wolf Gero ID - 13421 IS - 15 JF - Physical Review B SN - 2469-9950 TI - Understanding band alignments in semiconductor heterostructures: Composition dependence and type-I–type-II transition of natural band offsets in nonpolar zinc-blendeAlxGa1−xN/AlyGa1−yNcomposites VL - 95 ER -