# Publications database

 2018-06-2213:03 [PUBDB-2018-02355] Contribution to a conference proceedings/Contribution to a book et al High-Order Harmonic Generation from Solids Dressed by an Intense Terahertz Field Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_QELS.2018.FM3F.3CLEO: QELS_Fundamental Science, CLEO QELS, San Jose, CalinforniaSan Jose, Calinfornia, USA, 13 May 2018 - 18 May 2018 Washington, D.C., USA : OSA, OSA Terchnical Digest (online) FM3F.3, 2 pp. (2018) [10.1364/CLEO_QELS.2018.FM3F.3]   Using an intense transient terahertz electric field, we observe the appearance of even-order harmonics in silicon, normally forbidden in centrosymmetric crystals. Reducing the symmetry via transient dressing might lead to ultrafast symmetry control in crystals.. Restricted: 3.PDF; 2018-06-2212:52 [PUBDB-2018-02354] Contribution to a conference proceedings/Contribution to a book Kärtner, F. Simultaneous generation and compression of broadband terahertz pulses in aperiodically poled crystals Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.SM4A.2CLEO: Science and Innovations, CLEO SI, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 2018 Washington, D.C., USA : OSA, OSA technical digest (online) SM4A.2, 2 pp. (2018) [10.1364/CLEO_SI.2018.SM4A.2]   A non-uniform sequence of pump pulses in aperiodically poled crystals is shown to generate transform-limited terahertz pulses. Tunable, compressed terahertz output with singlestage conversion efficiencies > 2% and pulse energies ~ 10 mJ are predicted.. Restricted: 2.PDF; 2018-06-2212:36 [PUBDB-2018-02353] Contribution to a conference proceedings/Contribution to a book Kärtner, F. THz Driven Accelerators and X-ray Sources Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.STh1N.1CLEO: Science and Innovations, CLEO SI, San JoseSan Jose, California, 13 May 2018 - 18 May 2018 Washington, D.C., USA : OSA, OSA technical digest (online) STh1N.1, 2 pp. (2018) [10.1364/CLEO_SI.2018.STh1N.1]   Approaches towards a linear THz accelerator technology are discussed. Theoretical and first experimental results on laser based high energy THz generation, guns, accelerators as well as compact X-ray sources based on these devices are presented.. Restricted: 1.PDF; 2018-06-2210:38 [PUBDB-2018-02351] Report/Journal Article et al Combination and QCD analysis of charm and beauty production cross-section measurements in deep inelastic $ep$ scattering at HERA [DESY-18-037; arXiv:1804.01019]   Measurements of open charm and beauty production cross sections in deep inelastic $ep$ scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections are obtained in the kinematic range of negative four-momentum transfer squared of the photon $2.5$ GeV$^2\leq Q^2 \leq 2000$ GeV$^2$ and Bjorken scaling variable $3\cdot 10^{-5}\leq x_{\text{Bj}} \leq 5 \cdot 10^{-2}$. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2018-06-2210:30 [PUBDB-2018-02349] Contribution to a conference proceedings Chao, H.-C. Lattice Studies of a Booster Synchrotron for PETRA IV 9th International Particle Accelerator Conference, IPAC’18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 , 4 pp. (2018) [10.3204/PUBDB-2018-02349]   Associated with an upgrade study of the PETRA III light source toward ultra low-emittance is an upgrade study of the booster synchrotron. One possible solution obtained from a scaling of the ALBA booster to a circumference of 300 m is considered. [...] OpenAccess: PDF; 2018-06-2110:31 [PUBDB-2018-02340] Contribution to a conference proceedings Wanzenberg, R. Status of Impedance Modeling for the PETRA IV 9th International Particle Accelerator Conference, IPAC’18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 , 4 pp. (2018) [10.3204/PUBDB-2018-02340]   The diffraction limited synchrotron light source envisioned for the PETRA IV project will require strong focusing to produce the small emittances in both planes. The large natural chromaticity together with small dispersion will require very strong sextupoles. [...] OpenAccess: PDF PDF (PDFA); 2018-06-2108:42 [PUBDB-2018-02339] Journal Article et al Nano-laminated thin film metallic glass design for outstanding mechanical properties Scripta materialia 155, 73 - 77 (2018) [10.1016/j.scriptamat.2018.06.015]   We report the enhancement of fracture toughness and strength of a cobalt tantalum-based metallic glass thinfilm with increasing boron content. The improvement of the mechanical performance is attributed to the formationof a compositionally lamellar compared to uniform glass microstructure, which becomes thinner with increasingboron content as revealed by transmission electron microscopy. [...] Restricted: PDF PDF (PDFA); 2018-06-2010:09 [PUBDB-2018-02336] Journal Article et al Magnetoelastic phase diagram of $\mathrm{TbNi_{2}B_{2}}C$ Physical review / B 97(22), 224417 (2018) [10.1103/PhysRevB.97.224417]   The magnetic phase diagram of the quaternary borocarbide $\mathrm{TbNi_{2}B_{2}}C$ is investigated by direct means and by studying magnetically induced modifications of the crystal structure. Detailed superconducting quantum interference device measurements reveal a complex phase diagram with five distinct magnetic phases [...] OpenAccess: PDF PDF (PDFA); 2018-06-1916:20 [PUBDB-2018-02334] Journal Article Strohmaier, M. Correction exponents in the Gross–Neveu–Yukawa model at 1/$\mathrm{N^2}$   We calculate the critical exponents ω± in the d-dimensional Gross–Neveu model in 1 / N expansion with 1/$\mathrm{N^2}$ accuracy. These exponents are related to the slopes of the β-functions at the critical point in the Gross–Neveu–Yukawa model [...] OpenAccess: PDF PDF (PDFA); 2018-06-1913:02 [PUBDB-2018-02329] Journal Article et al Probing the Thermochromic Phase Transition in $\mathrm{CuMoO_{4}}$ by EXAFS Spectroscopy Physica status solidi / B 255, 1800074 (2018) [10.1002/pssb.201800074]   Extended X-ray absorption fine structure (EXAFS) spectroscopy at the Mo K-edge is used to follow the thermochromic γ-to-α phase transition in copper molybdate (CuMoO4). The temperature dependence (10–300 K) of the radial distribution function (RDF) for the Mo–O atom pairs in the first coordination shell of molybdenum atoms is reconstructed by the regularization-like method from the experimental EXAFS spectra. [...] Restricted: PDF PDF (PDFA); External link: Fulltext