Storage and transport in cave seepage- and groundwater in a South German karst system (2008)
Schwarz, K., Barth, J. A. C., Grathwohl, P., Postigo-Rebello, C.
We investigated one of the best-known and second largest karst areas in Germany (Blautopf Catchment) that offers a unique access waters of the unsaturated zone through a large cave system. As tracers...
Storage and transport in cave seepage- and groundwater in a South German karst system (2008)
Schwarz, K., Barth, J. A. C., Grathwohl, P., Postigo-Rebello, C.
We investigated one of the best-known and second largest karst areas in Germany (Blautopf Catchment) that offers a unique access waters of the unsaturated zone through a large cave system. As tracers...
Rende, D., Schwarz, K., Rabe, U., Maier, W.F., Arnold, W.
Piezoelectric materials are used in an ever increasing number of technical products. The need for new and improved piezoelectric materials is growing rapidly. Conventional methods are too slow to...
Koch, W., Pohlmann, G., Schwarz, K.
A system for delivering a reference number concentration (calibration source) is proposed as an alternative to using reference methods for calibrating instrumentation of ultrafine particle number...
In der akustischen Rasterkraftmikroskopie werden Schwingungsmoden des Sensorbalkens zur Untersuchung elastischer Eigenschaften mit lateraler Auflösung von ca. 10 nm genutzt. Als problematisch bei...
Excitation of atomic force microscope cantilever vibrations by a Schottky barrier (2008)
Schwarz, K., Rabe, U., Hirsekorn, S., Arnold, W.
We have developed a method to excite cantilever vibrations for dynamic force microscopy. A n-doped silicon cantilever is coated by platinum. At the interface, a Schottky barrier forms whose depletion...
Excitation of atomic force microscope cantilever vibrations by a Schottky barrier (2008)
Schwarz, K., Rabe, U., Hirsekorn, S., Arnold, W.
We have developed a method to excite cantilever vibrations for dynamic force microscopy. A n-doped silicon cantilever is coated by platinum. At the interface, a Schottky barrier forms whose depletion...
Jung, V., Loges, R., Henriksen, J., Grevsen, K., Christensen, L. P., Kristiansen, K., ...
Ecologically grown medicinal plants containing bioactive compounds hold great poten-tial as high-value niche crops for farmers. However, the way to grow these plants differs from traditional crops....
Arnold, W., Schwarz, K., Rabe, U.
DE 102005038245 A1 UPAB: 20070529 NOVELTY - The device has a semiconductor material which does not have any piezoelectric properties. A tip (3) which can be brought into contact with the sample...
Rende, D., Schwarz, K., Rabe, U., Maier, W.F., Arnold, W.
The development of an automated production of thin films and the characterization of their piezoelectric properties in high-throughput are described. A library of 50 undoped as well as doped lead...
Impact of Phenolic Antioxidants on Structural Properties of Micellar Solutions (2006)
Heins, A., Haramus, V., Steffen, B., Stoeckmann, H., Schwarz, K.
Antioxidants solubilized in micellar solutions can change micellar properties like the size and shape of micelles, critical micellar concentration (cmc) and viscosity. Interactions arising between...
Supporting the decision process for the choice of a domain modeling scheme (2006)
Schwarz, K., Kouwenhoven, T., Dignum, M.V., Ossenbruggen, J. Van
Rabe, U., Arnold, W., Caron, A., Hirsekorn, S., Schwarz, K.
The combination of ultrasound with atomic force microscopy (AFM) opens the high lateral resolution of scanning probe echniques to ultrasonics. Atomic force acoustic microscopy (AFAM) and lateral...
Yang, Q.K., Manz, C., Bronner, W., Schäuble, K., Mann, C., Schwarz, K., ...
Short-wavelength (lambda < 4 µm) GaInAs-AlAsSb quantum cascade (QC) lasers have been demonstrated using a "bound-to-continuum" design for the purpose of reducing the electric injection...
Position Reconstruction in Drift Chambers operated with Xe, CO2 (15%) (2005)
Adler, C, Andronic, A, Appelshäuser, H, Bielcikova, J, Blume, C, Braun-Munzinger, P, ...
We present measurements of position and angular resolution of drift chambers operated with a Xe,CO$_2$(15%) mixture. The results are compared to Monte Carlo simulations and important systematic...
ALICE Technical Design Report on Forward Detectors : FMD, T0 and V0 (2005)
Cortese, P., Dellacasa, G., Ramello, L., Sitta, M., Ahmad, N., Ahmad, S., ...
ALICE Technical Design Report of the Computing (2005)
Cortese, P., Dellacasa, G., Ramello, L., Sitta, M., Ahmad, N., Ahmad, S., ...
ALICE Technical Design Report on Forward Detectors : FMD, T0 and V0 (2005)
Cortese, P., Dellacasa, G., Ramello, L., Sitta, M., Ahmad, N., Ahmad, S., ...
ALICE Technical Design Report of the Computing (2005)
Cortese, P., Dellacasa, G., Ramello, L., Sitta, M., Ahmad, N., Ahmad, S., ...
Evidence for magnetic clusters in BaCoO$_3$ (2004)
Pardo, V., Rivas, J., Baldomir, D., Iglesias, M., Blaha, P., Schwarz, K., ...
Magnetic properties of the transition metal oxide BaCoO$_3$ are analyzed on the basis of the experimental and theoretical literature available via ab inito calculations. These can be explained by...
Magnetic structure and orbital ordering in BaCoO3 from first-principles calculations (2004)
Pardo, V., Blaha, P., Iglesias, M., Schwarz, K., Baldomir, D., Arias, J. E.
Ab initio calculations using the APW+lo method as implemented in the WIEN2k code have been used to describe the electronic structure of the quasi-one-dimensional system BaCoO3. Both, GGA and LDA+U...
Transition Radiation Spectroscopy with Prototypes of the ALICE TRD (2004)
Busch, O, Adler, C, Andronic, A, Angelov, V, Appelshäuser, H, Blume, C, ...
We present measurements of the transition radiation (TR) spectrum produced in an irregular radiator at different electron momenta. The data are compared to simulations of TR from a regular radiator.
Metallic "Ferroelectricity" in the Pyrochlore Cd2Re2O7 (2004)
Sergienko, I. A., Keppens, V., McGuire, M., Jin, R., He, J., Curnoe, S. H., ...
A class of materials known as ``ferroelectric metals'' was discussed theoretically by Anderson and Blount in 1965 [Phys. Rev. Lett. 14, 217 (1965)], but to date no examples of this class have been...
ALICE: Physics performance report, Volume 1 (2004)
Carminati, F., Foka, P., Giubellino, P., Morsch, A., Paic, G., ...
ALICE is a general-purpose heavy-ion experiment designed to study the physics of strongly interacting matter and the quarkgluon plasma in nucleusnucleus collisions at the LHC. It currently...
ALICE: Physics performance report, Volume 1 (2004)
Carminati, F., Foka, P., Giubellino, P., Morsch, A., Paic, G., ...
ALICE is a general-purpose heavy-ion experiment designed to study the physics of strongly interacting matter and the quarkgluon plasma in nucleusnucleus collisions at the LHC. It currently...
Synaptopodin-deficient mice lack a spine apparatus and show deficits in synaptic plasticity (2003)
Deller,T., Korte,M., Chabanis,S., Drakew,A., Schwegler,H., Stefani,G. G., ...
The spine apparatus is a cellular organelle that is present in many dendritic spines of excitatory neurons in the mammalian forebrain. Despite its discovery >40 years ago, the function of the spine...
Synaptopodin-deficient mice lack a spine apparatus and show deficits in synaptic plasticity (2003)
Deller, T., Korte, M., Chabanis, S., Drakew, A., Schwegler, H., Stefani, G. G., ...
The spine apparatus is a cellular organelle that is present in many dendritic spines of excitatory neurons in the mammalian forebrain. Despite its discovery >40 years ago, the function of the spine...
El-Shattory, Y. A., Saadia, M. A., Hamed, S. F., Schwarz, K.
The effect of reversed micelles (RMs) in combination with α -tocopherol and Trolox was evaluated on the autooxidation and photooxidation of stripped corn oil. Oxidation was followed by...
Antioxidant properties of differently processed spinach products (2002)
Castenmiller, J.J.M., Linssen, J.P.H., Heinonen, I.M., Hopia, A.I., Schwarz, K., Hollman, P.C.H., ...
The effect of variously processed spinach products (whole-leaf, minced and enzymatically liquefied spinach) on lipid oxidation was determined. In an autoxidative methyl linoleate (MeLo) system the...
ALICE addentum to the Technical Design Report of the time of flight system (TOF) (2002)
Cortese, P., Dellacasa, G., Ramello, L., Scalas, E., Sitta, M., Ahmad, N., ...
ALICE addentum to the Technical Design Report of the time of flight system (TOF) (2002)
Cortese, P., Dellacasa, G., Ramello, L., Scalas, E., Sitta, M., Ahmad, N., ...
Low-noise quantum well infrared photodetectors for high-resolution thermal imaging (2002)
Schneider, H., Walther, M., Fleißner, J., Rehm, R., Diwo, E., Schwarz, K., ...
We report on the layer structure, transport mechanism, and detection properties of low-noise QWIPs. These devices show high detectivity, low signal and noise currents, and distinctive noise...
First-principles study of the ferroelastic phase transition in CaCl_2 (2001)
Valgoma, J. A., Perez-Mato, J. M., Garcia, Alberto, Schwarz, K., Blaha, P.
First-principles density-functional calculations within the local-density approximation and the pseudopotential approach are used to study and characterize the ferroelastic phase transition in...
Electronic structure of the pyrochlore metals Cd2Os2O7 and Cd2Re2O7 (2001)
Singh, D. J., Blaha, P., Schwarz, K., Sofo, J. O.
First principles density functional calculations within the local spin density approximation (LSDA) and the generalized gradient approximation (GGA) are reported for pyrochlore Cd$_2$Os$_2$O$_7$ and...
Itinerant metamagnetism and possible spin transition in LaCoO$_3$ by temperature/hole doping (2001)
Ravindran, P., Fjellvåg, H., Kjekshus, A., Blaha, P., Schwarz, K., Luitz, J.
The electronic structure of the perovskite La$_{1-x}$Sr$_x$CoO$_3$ has been obtained as a function of Sr substitution and volume from a series of generalized-gradient-corrected, full-potential,...
Primary immunodeficiency mutation databases (2001)
Vihinen, M., Arredondo-Vega, F.X., Casanova, J.L., Etzioni, A., Gilliani, S., Hammerstrom, L., ...
Ten years of QWIP development at Fraunhofer IAF (2001)
Schneider, H., Koidl, P., Walther, M., Fleissner, J., Rehm, R., Diwo, E., ...
We report on our quantum well infrared photodetector (QWIP) developments aimed at high-performance thermal imaging with tow-dimensional focal plane arrays (FPA). Due to the limited charge storage...
Responsivity and Gain of InGaAs/GaAs-QWIPs and GaAs/AlGaAs-QWIPS: a Comparative Study (2001)
Rehm, R., Schneider, H., Schwarz, K., Walther, M., Koidl, P., Weimann, G.
We experimentally compare the peak responsivity R, gain g, quantum efficiency, and detectivity of GaAs/AlGaAs-QWIPs with devices based on the competing material system InGaAs/GaAs. For this purpose...
Fujiwara, M., Akimune, H., Cribier, M., Daito, I., Ejiri, H., ...
Discrete Gamow-Teller (GT) transitions, 176Yb-->176Lu at low excitation energies have been measured via the (3He,t) reaction at 450 MeV and at 0 degrees. For 176Yb, two low-lying states are observed,...
Primary immunodeficiency mutation databases (2000)
Vihinen, M., Arredondo-Vega, F.X., Casanova, J.L., Etzioni, A., Giliani, S., Hammarstrom, L., ...
Improving the efficiency of FP-LAPW calculations (2000)
Petersen,M., Wagner,F., Hufnagel,L., Scheffler,M., Blaha,P., Schwarz,K.
Radio Frequency Plasma Processing to Produce Chromium Sputter Targets (2000)
Müller, M., Heimann, R.B., Gitzhofer, F., Boulos, M.I., Schwarz, K.
Improving the efficiency of FP-LAPW calculations (2000)
Petersen, M., Wagner, F., Hufnagel, L., Scheffler, M., Blaha, P., Schwarz, K.
Low-noise QWIPs for FPA sensors with high thermal resolution (2000)
Schneider, H., Walther, M., Fleissner, J., Rehm, R., Diwo, E., Schwarz, K., ...
We report on novel low-noise QWIP focal plane arrays (FPAs) which allow us to improve the thermal resolution of infrared sensors in the long-wavelength infrared (LWIR) atmospheric window. Our concept...
Walther, M., Fleißner, J., Schneider, H., Schönbein, C., Pletschen, W., Diwo, E., ...
Photoconductive GaAs/AlGaAs quantum well infrared photodetectors are investigated for the fabrication of IR cameras for thermal imaging in the third atmospheric window. The long wavelength infrared...
Electronic Structure and Heavy Fermion Behavior in LiV_2O_4 (1999)
Singh, D. J., Blaha, P., Schwarz, K., Mazin, I. I.
First principles density functional calculations of the electronic and magnetic properties of spinel-structure LiV$_{2}$O$_{4}$ have been performed using the full potential linearized augmented...
Reduced magnetic moments in UNiSi (1998)
Prokes, K., Brück, E.H., Divis, M., Buschow, K.H.J., Mohn, P., Schwarz, K.
Photogalvanic effect in asymmetric quantum wells and superlattices (1998)
Schneider, H., Ehret, S., Schönbein, C., Schwarz, K., Bihlmann, G., Fleissner, J., ...
We have investigated the influence of the final states of bound-to-continuum transitions within the conduction band of asymmetric quantum well structures on the photocurrent. This influence manifests...
Ballistic effects and intersubband excitations in multiple quantum well structures (1998)
Schneider, H., Schönbein, C., Schwarz, K., Walther, M.
We have studied the transport properties of electrons in asymmetric quantum well structures upon far-infrared optical excitation of carriers from the lowest subband into the continuum. Here the...
Reduced magnetic moments in UNiSi (1998)
Boer, F.R. De, Prokes, K., Divis, M., Mohn, P., Schwarz, K., Sechovsky, V., ...
Photovoltaic quantum well infrared photodetectors: The four-zone scheme (1997)
Schneider, H., Schönbein, C., Walther, M., Schwarz, K., Fleissner, J., Koidl, P.
We have investigated a particular class of photovoltaic quantum well intersubband photodetectors. Each period of the active region in these structures consists of four zones, namely an excitation...
Calculations for Martensitic Phase Transformations by Quantum Mechanics and Thermodynamics (1995)
Schwarz, K., Mohn, P., Sliwko, V., Blaha, P.
The martensitic phase transition (MPT) from fcc to bcc is studied by a new combination of established methods. A continuous change between the two phases is possible according to the Bain transition...
Hoffmann, E., Entel, P., Wassermann, E., Schwarz, K., Mohn, P.
We investigate the electronic and cohesive properties of the hexagonal and cubic Laves phases of Fe2Ti by ab initio band structure calculations. In particular the stability range of these compounds...
Calculations for Martensitic Phase Transformations by Quantum Mechanics and Thermodynamics (1995)
Schwarz, K., Mohn, P., Sliwko, V., Blaha, P.
The martensitic phase transition (MPT) from fcc to bcc is studied by a new combination of established methods. A continuous change between the two phases is possible according to the Bain transition...
Hoffmann, E., Entel, P., Wassermann, E., Schwarz, K., Mohn, P.
We investigate the electronic and cohesive properties of the hexagonal and cubic Laves phases of Fe2Ti by ab initio band structure calculations. In particular the stability range of these compounds...
Calculations for Martensitic Phase Transformations by Quantum Mechanics and Thermodynamics (1995)
Schwarz, K., Mohn, P., Sliwko, V., Blaha, P.
The martensitic phase transition (MPT) from fcc to bcc is studied by a new combination of established methods. A continuous change between the two phases is possible according to the Bain transition...
Hoffmann, E., Entel, P., Wassermann, E., Schwarz, K., Mohn, P.
We investigate the electronic and cohesive properties of the hexagonal and cubic Laves phases of Fe2Ti by ab initio band structure calculations. In particular the stability range of these compounds...
Hydrogen-related IR absorption in chemical vapour deposited diamond (1995)
Fuchs, F., Wild, C., Schwarz, K., Koidl, P.
Polycrystalline and homoepitaxial diamond films deposited from high12C and high13C-containing gases have been characterized by Fourier transform IR spectroscopy. We present evidence that some...
Fuchs, F., Wild, C., Schwarz, K., Müller-Sebert, W., Koidl, P.
Homoepitaxial diamond films grown by chemical vapor deposotion from high12C and high13C containing gases have been studied by Fourier transform infrared spectroscopy. A sharp absorption band observed...