Scientific Commons: H. Hartmann

We report measurements of the thermal expansion for two Eu$^{+2}$- and two Gd$^{+3}$-based intermetallics which exhibit ferro- or antiferromagnetic phase transitions. These materials show sharp...

Die chemische Bindung (2007)

Hartmann, H.

Non-equilibrium solidification of intermetallic compounds in the Ni-Al alloy system (2007)

Hartmann, H., Reutzel, S., Galenko, P. K., Assadi, H., Herlach, D. M.

Ni-Al alloy system exhibits particular solidication behavior due to chemical long-range order of the intermetallic compounds Ni3Al (L12) and NiAl (B2). Using rapid solidication technique their slow...

Solidification Behavior of Al68.5Ni31.5 and Ti-Al-Nb Melts (2007)

Holland-Moritz, D., Hartmann, H., Volkmann, T., Herlach, D.

Neutron scattering investigatons on melts of Al-Ni and Zr-Ni alloys (2007)

Holland-Moritz, D., Meyer, A., Hartmann, H., Stüber, S., Yang, F.

Interplay of Structure and Dynamics in liquid and undercooled AlNi melts (2007)

Stüber, S., Meyer, A., Holland-Moritz, D., Hartmann, H., Unruh, T.

Dendritic and eutectic solidification of undercooled Ni-Zr alloys (2007)

Hartmann, H., Reutzel, S., Galenko, P., Herlach, D.M.

Measurement of dendrite growth velocities in undercooled melts (2007)

Volkmann, T., Hartmann, H., Herlach, D.M.

Change of the Kinetics of Solidification and Microstructure Formation induced by Convection in the Ni-Al System (2007)

Reutzel, S., Hartmann, H., Galenko, P. K., Schneider, S., Herlach, D. M.

The purpose of the present work was to measure the velocity of dendrite growth in undercooled Ni–Al alloy melts as a function of undercooling. The experiments were performed both by containerless...

Non-equilibrium solidification in undercooled Ti-Al melts (2007)

Hartmann, H., Galenko, P.K., Holland-Moritz, D., Shuleshova, O., Kolbe, M., Herlach, D.M.

Magnetoelastic coupling across the metamagnetic transition in Ca2- x Sr x RuO4 (0.2 (2007)

Baier, J, Steffens, P, Schumann, O, Kriener, M, Stark, S, Hartmann, H, ...

Three- and Four-Jet Final States in Photoproduction at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Internal report | Preprint

Forward-Jet Production in Deep Inelastic ep Scattering at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Leading Neutron Energy and PT Distributions in Deep Inelastic Scattering and Photoproduction at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Dijet Production in Diffractive Deep Inelastic Scattering at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Measurement of (Anti)Deuteron and (Anti)Proton Production in DIS at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Multijet production at low xBj in deep inelastic scattering at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Diffractive Photoproduction of D*±(2010) at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Measurement of D Mesons Production in Deep Inelastic Scattering at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Internal report | Preprint

Diffractive Photoproduction of D*±(2010) at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Measurement of D*± Meson Production in e±p Scattering at Low Q2 (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Exclusive ρ 0 Production in Deep Inelastic Scattering at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Internal report | Preprint

Diffractive Photoproduction of Dijets in ep Collisions at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Internal report | Preprint

Bose-Einstein Correlations of Charged and Neutral Kaons in Deep Inelastic Scattering at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

High-ET dijet photoproduction at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Non-equilibrium solidification of intermetallic of Ni-Al and Ti-Al alloy systems (2007)

Hartmann, H., Galenko, P., Assadi, H., Reutzel, S., Lengsdorf, R., Herlach, D.

Measurement of K0s, Lambda, Antilambda Production at HERA (2007)

H. Abramowicz, DESY Forschung Hochenergiephysik, I. Abt, L. Adamczyk, M. Adamus, V. Adler, ...

Journal article

Fluid Flow Effects of growth kinetics, segregation and phase distribution in solidifying undercooled alloy melts (2007)

Lengsdorf, R., Reutzel, S., Hartmann, H., Mosbah, S., Henein, H., ...

Introduction to state-of-the-art solidification experiments of undercooled metallic melts (2007)

Lengsdorf, R., Reutzel, S., Hartmann, H., Volkmann, T., Herlach, D.M.

Measurements and modeling of the dendrite growth velocity and investigations of the microstructure evolution of undercooled melts under terrestrial and µg conditions (2007)

Lengsdorf, R., Reutzel, S., Hartmann, H., Galenko, P., Herlach, D.M.

Influence of forced convection to dendrite growth velocity in undercooled Ni-Al based metallic melts (2007)

Lengsdorf, R., Hartmann, H., Reutzel, S., Galenko, P., Schneider, S., Kolbe, M., ...

Magnetoelastic coupling across the metamagnetic transition in Ca$_{2-x}$Sr$_x$RuO$_4$ (0.2 < x < 0.5) (2006)

Baier, J., Steffens, P., Schumann, O., Kriener, M., Stark, S., Hartmann, H., ...

The magnetoelastic coupling in Ca$_{1.8}$Sr$_{0.2}$RuO$_4$ and in Ca$_{1.5}$Sr$_{0.5}$RuO$_4$ has been studied combining high-resolution dilatometer and diffraction techniques. Both compounds exhibit...

The spin state transition in LaCoO$_{3}$; revising a revision (2006)

Haverkort, M. W., Hu, Z., Cezar, J. C., Burnus, T., Hartmann, H., Reuther, M., ...

Using soft x-ray absorption spectroscopy and magnetic circular dichroism at the Co-$L_{2,3}$ edge we reveal that the spin state transition in LaCoO$_{3}$ can be well described by a low-spin ground...

Accurate extraction of maximum current densities from the layout (2006)

Seidl, A., Schnattinger, T., Erdmann, A., Hartmann, H., Petrashenko, A.

A module for efficient extraction of maximum current densities from the layout has been developed and implemented within the CAD package PARIS. The corner-rounding dependence on technology...

Non-equilibrium solidification of intermetallic phases in Ni-Al and Ti-Al alloy systems (2006)

Hartmann, H., Reutzel, S., Galenko, P.K., Assadi, H., Herlach, D.M.

Isolated mitochondrial long-chain ketoacyl-CoA thiolase deficiency resulting from mutations in the HADHB gene (2006)

Das, A.M., Illsinger, S., Lücke, T., Hartmann, H., Ruiter, J.P.N., Steuerwald, U., ...

Electronic structure of $RE$AuMg and $RE$AgMg ($RE$ = Eu, Gd, Yb) (2005)

Gegner, Jan, Koethe, T. C., Wu, Hua, Hartmann, H., Lorenz, T., Fickenscher, T., ...

We have investigated the electronic structure of the equiatomic EuAuMg, GdAuMg, YbAuMg and GdAgMg intermetallics using x-ray photoelectron spectroscopy. The spectra revealed that the Yb and Eu are...

Magnetic heat transport in R$_2$CuO$_4$ (R = La, Pr, Nd, Sm, Eu, and Gd) (2005)

Berggold, K., Lorenz, T., Baier, J., Kriener, M., Senff, D., Roth, H., ...

We have studied the thermal conductivity $\kappa$ on single crystalline samples of the antiferromagnetic monolayer cuprates R$_2$CuO$_4$ with R = La, Pr, Nd, Sm, Eu, and Gd. For a heat current within...

Magnetoresistance, specific heat and magnetocaloric effect of equiatomic rare-earth transition-metal magnesium compounds (2005)

Hartmann, H., Berggold, K., Jodlauk, S., Klassen, I., Kordonis, K., Fickenscher, T., ...

We present a study of the magnetoresistance, the specific heat and the magnetocaloric effect of equiatomic $RET$Mg intermetallics with $RE = {\rm La}$, Eu, Gd, Yb and $T = {\rm Ag}$, Au and of...

Health and cleanliness of the XMM-Newton science payload since launch (2005)

Kirsch, M. G., Abbey, A., Altieri, B., Baskill, D., Dennerl, K., Van Dooren, J., ...

The One-level Functional Equation of Multirate Loss Systems (2003)

Harro L. Hartmann, Martin Knoke, H. Hartmann

Motivated by the discrete multirate Kaufmann-Roberts recurrence relations we derive a functional equation (FE), which covers nonintegral states. This FE implies a unique effective step parameter d,...

Bose-Einstein correlations in one and two-dimensions in deep inelastic scattering (2003)

ZEUS Collaboration, Chekanov, S, Derrick, M, Krakauer, D, Loizides, JH, Magill, S, ...

Proof of innocence for the quintessential noninnocent ligand TCNQ in its tetranuclear complex with four [fac-Re(CO)3(bpy)]+ groups: Unusually different reactivity of the TCNX ligands (TCNX = TCNE, TCNQ, TCNB) (2003)

Hartmann, H., Kaim, W., Wanner, M., Klein, A., Frantz, S., Duboc-Toia, C., ...

Bio-numerical simualtions with SimBio (2003)

Fingberg, J., Berti, G., Hartmann, H., Basermann, A., Wolters, C. H., Anwander, A., ...

The central objective of the SimBio project is the improvement of clinical and medical practices by the use of large-scale numerical simulation for bio-medical problems. SimBio provides a generic...

Bio-numerical simualtions with SimBio (2003)

Fingberg, J., Berti, G., Hartmann, H., Basermann, A., Wolters, C. H., Anwander, A., ...

The central objective of the SimBio project is the improvement of clinical and medical practices by the use of large-scale numerical simulation for bio-medical problems. SimBio provides a generic...

Bose-Einstein correlations in one and two-dimensions in deep inelastic scattering (2003)

ZEUS Collaboration, Chekanov, S, Derrick, M, Krakauer, D, Loizides, JH, Magill, S, ...

Multifrequency EPR study and density functional g-tensor calculations of persistent organorhenium radical complexes (2002)

Frantz, S., Hartmann, H., Doslik, N., Wanner, M., Kaim, W., ...

The dinuclear radical anion complexes {(mu- L)[Re(CO)(3)Cl](2)}(.-), L = 2,2'-azobispyridine (abpy) and 2,2'-azobis(5-chloropyrimidine) (abcp), were investigated by EPR at 9.5, 94, 230, and 285 GHz...

Generative Fertigungsverfahren - eine Alternative für den Werkzeugbau? (2000)

Kühnle, H., Stettin, A., Hartmann, H.

Es wird einen Überblick über die Anwendungsmöglichkeiten der Verfahren des Rapid Prototyping beim Bau von Druckgießformen für die Erzeugung von Prototypen im Serienwerkstoff und -verfahren...

Orientierungsstabile nichtlinear optische Polymere für elektro-optische Anwendungen (1999)

Fricke, C., Bernds, A., Kanitz, A., Walter, A., Hartmann, H., Günzelmann, C., ...

Destabilization of beta-Catenin by Presenilin-1 Mutations Increases Neuronal Vulnerability to Apoptosis (1998)

Zhang, Z., Hartmann, H., Minh Do, V., Abramowski, D., Sturchler-Pierrat, C., Staufenbiel, M., ...

Correction on the vapor composition of ZnSe determined with a modified Knudsen technique. (1998)

Schönherr, E., Freiberg, M., Siche, D., Hartmann, H.

Elektrooptische und photonische Bauelemente (1998)

Nordmann, J., Beckmann, S., Etzbach, K.H.,

H. Hartmann

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