Search Results - (Author, Cooperation:C. Flynn)
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1Latest Papers from Table of Contents or Articles in PressJ. Ruschel ; F. Hellal ; K. C. Flynn ; S. Dupraz ; D. A. Elliott ; A. Tedeschi ; M. Bates ; C. Sliwinski ; G. Brook ; K. Dobrindt ; M. Peitz ; O. Brustle ; M. D. Norenberg ; A. Blesch ; N. Weidner ; M. B. Bunge ; J. L. Bixby ; F. Bradke
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-03-15Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Axons/*drug effects/physiology ; Cell Movement/drug effects ; Cell Polarity/drug effects ; Cicatrix/pathology/*prevention & control ; Epothilones/*administration & dosage ; Fibroblasts/drug effects/pathology ; Humans ; Meninges/drug effects/pathology ; Motor Activity/drug effects ; Nerve Regeneration/*drug effects ; Neurons/drug effects/pathology ; Rats ; Spinal Cord Injuries/*drug therapy/pathology/physiopathology ; Tubulin Modulators/*administration & dosagePublished by: -
2Latest Papers from Table of Contents or Articles in PressE. F. Keane ; S. Johnston ; S. Bhandari ; E. Barr ; N. D. Bhat ; M. Burgay ; M. Caleb ; C. Flynn ; A. Jameson ; M. Kramer ; E. Petroff ; A. Possenti ; W. van Straten ; M. Bailes ; S. Burke-Spolaor ; R. P. Eatough ; B. W. Stappers ; T. Totani ; M. Honma ; H. Furusawa ; T. Hattori ; T. Morokuma ; Y. Niino ; H. Sugai ; T. Terai ; N. Tominaga ; S. Yamasaki ; N. Yasuda ; R. Allen ; J. Cooke ; J. Jencson ; M. M. Kasliwal ; D. L. Kaplan ; S. J. Tingay ; A. Williams ; R. Wayth ; P. Chandra ; D. Perrodin ; M. Berezina ; M. Mickaliger ; C. Bassa
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-02-26Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressF. Hellal ; A. Hurtado ; J. Ruschel ; K. C. Flynn ; C. J. Laskowski ; M. Umlauf ; L. C. Kapitein ; D. Strikis ; V. Lemmon ; J. Bixby ; C. C. Hoogenraad ; F. Bradke
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-01-29Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Axons/*physiology ; Cells, Cultured ; Chondroitin Sulfate Proteoglycans/metabolism ; Cicatrix/pathology/*prevention & control ; Female ; Ganglia, Spinal/cytology ; Kinesin/metabolism ; Microtubules/drug effects/*metabolism ; Paclitaxel/*administration & dosage/pharmacology ; Protein Transport ; Rats ; Rats, Sprague-Dawley ; Sensory Receptor Cells/physiology ; Signal Transduction ; Smad2 Protein/metabolism ; Spinal Cord/cytology/drug effects ; Spinal Cord Injuries/*drug therapy/pathology/*physiopathology ; *Spinal Cord Regeneration ; Transforming Growth Factor beta/metabolismPublished by: -
4FIS Bildung LiteraturdatenbankFlynn, C. Brian [Verfasser] ; Feild, Hubert S. [Verfasser] ; Bedeian, Arthur G. [Verfasser]
Published 2011Staff ViewType of Medium: articlePublication Date: 2011Keywords: Betriebswirtschaft ; Management ; Berufseintritt ; Karriereplanung ; Studium ; Akademiker ; Student ; USAIn: Career development international, Bd. 16 (2011) H. 4, S. 316-341, 1362-04361758-6003Language: English -
5Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-05-18Publisher: The American Society for Microbiology (ASM)Print ISSN: 0099-2240Electronic ISSN: 1098-5336Topics: BiologyPublished by: -
6Articles: DFG German National LicensesBeach, R. S. ; Matheny, A. ; Salamon, M. B. ; Flynn, C. P. ; Borchers, J. A. ; Erwin, R. W. ; Rhyne, J. J.
[S.l.] : American Institute of Physics (AIP)
Published 1993Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Thin dysprosium c-axis films (40–400 A(ring)) were grown coherently between 500-A(ring) lutetium layers by molecular beam epitaxy. Bulk magnetization measurements show that these sandwich structures order magnetically at TN(approximately-equal-to)178 K (=TN of elemental Dy) and undergo ferromagnetic transitions at temperatures which range from 100 K (400 A(ring) Dy) to 175 K (40 A(ring) Dy), significantly enhanced from the bulk TC=85 K. The Dy basal plane lattice parameters in the films were determined by room-temperature x-ray diffraction. We observe a change in these values that correlates with the rise in TC, which suggests that this rise is due to epitaxial strain. The relatively small low-temperature magnetic susceptibility displayed by these samples indicates the presence of a large anisotropy in the basal plane. We address both the issues of the susceptibility and the high ferromagnetic transition temperature.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesTsui, F. ; Flynn, C. P. ; Beach, R. S. ; Borchers, J. A. ; Erwin, R. W. ; Rhyne, J. J.
[S.l.] : American Institute of Physics (AIP)
Published 1993Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We have investigated magnetic order in superlattices of Dy and Sc grown along the hcp c axis by molecular beam epitaxy (MBE) techniques. Our neutron diffraction experiments reveal that individual Dy layers order ferromagnetically below Tc∼150 K. The magnetic coherence length along the growth direction is less than the Dy-layer thickness. Previous studies of rare-earth superlattices with Y or Lu as spacer layers have shown that magnetic coherence propagates through sufficiently thin nonmagnetic interlayers. This arises from the long-range exchange interaction that originates from nesting features in the Fermi surface of the spacer material. The lack of coupling in Dy/Sc superlattices reflects the very different Fermi surface of Sc, with much weaker nesting than Y and Lu.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesBeach, R. S. ; Borchers, J. A. ; Erwin, R. W. ; Rhyne, J. J. ; Matheny, A. ; Flynn, C. P. ; Salamon, M. B.
[S.l.] : American Institute of Physics (AIP)
Published 1991Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: A series of c-axis Er films ranging in thickness from 400 to 9500 A(ring) were grown on lutetium base layers to investigate the effects of epitaxial growth on the magnetic properties of bulk erbium. Neutron diffraction studies show that the basal plane lattice parameter of Er approaches the smaller Lu value as the films are made thinner. Below TN the phase angles of the Er spin modulation are diminished from bulk Er values in the thinner films. For all but two 800-A(ring) films, there is evidence from bulk magnetization and neutron data of a first-order transition to a conical ferromagnetic state, similar to bulk Er. These phenomena are compared to the properties of Er films grown on yttrium, whose basal plane spacing exceeds that of Er. In these systems the turn angles are greater than bulk and the ferromagnetic phase is suppressed. This contrasting behavior is consistent with predictions from a magnetoelastic energy model of epitaxial constraint developed to describe the Er/Y systems.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesTheis-Bröhl, K. ; Ritley, K. A. ; Flynn, C. P. ; Hamacher, K. ; Kaiser, H. ; Rhyne, J. J.
[S.l.] : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Epitaxial (11¯02) Dy/Y rare earth superlattices and a thick (11¯02) Dy film, grown on sapphire with Y/Ta buffer layers, have been prepared by molecular beam epitaxy. Neutron diffraction and SQUID magnetization measurements on a single 200 nm thick (11¯02) Dy layer showed nearly bulk behavior. However, for the (11¯02) Dy/Y superlattices we found different magnetic behavior depending on the relative Dy to Y-layer thickness. The superlattices exhibit both ferromagnetic and helical phases, but with the Néel and Curie temperatures significantly different from bulk Dy. These results differ from previous findings in Dy/Y superlattices grown along [0001]. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesEveritt, B. A. ; Salamon, M. B. ; Flynn, C. P. ; Park, B. J. ; Borchers, J. A. ; Erwin, R. W. ; Tsui, F.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Although many binary heavy rare-earth alloy systems have been studied extensively, there has been little work reported on the Dy-Lu system. The properties of single-crystal DyxLu1−x films grown by molecular beam epitaxy are reported. SQUID magnetometer and neutron diffraction measurements on samples with x=0.4, 0.5, and 0.6 show that the samples order helimagnetically with Néel temperatures of TN=90, 105, and 120 K, respectively. The helical turn angle was mapped as a function of temperature for each of the three alloys. Magnetic x-ray scattering, the first in an alloy, was observed at the (002)± positions at 15 and 60 K in the x=0.4 sample using resonant exchange scattering of synchrotron radiation at the Dy LIII edge.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesS´wie¸ch, W. ; Mundschau, M. ; Flynn, C. P.
Woodbury, NY : American Institute of Physics (AIP)
Published 1999Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Low-energy electron microscopy is employed to image defects at buried interfaces through the strains they cause at the front surface. The interfacial defects studied here occur in high quality films of Mo(110) grown by molecular beam epitaxy on Al2O3(112¯0). The defects include steps and inclusions on the original sapphire surface and interfacial dislocations created where epitaxial strain causes slip. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: (110) oriented growth was observed for thin films of the highly magnetostrictive Laves phases TbFe2 and DyFe2 on Ta (110). On Nb (111), TbFe2 nucleates in the (111) orientation. Depending on the substrate temperature during growth, varying degrees of residual tensile strain were observed in the films. For TbFe2 grown on Ta (110) at 680 °C, x-ray diffraction revealed a splitting of the (220) Bragg reflection into a strain free component structurally coherent with the template, and a component with 0.5% biaxial tensile strain at room temperature. This strained component can be attributed to the difference in thermal expansion between the sapphire substrate and the TbFe2 film. Magnetic hysteresis measurements revealed that the axis of easy magnetization lies in the film plane for both (110) and (111) oriented samples. © 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesBorchers, J. A. ; Salamon, M. B. ; Du, R. ; Flynn, C. P. ; Rhyne, J. J. ; Erwin, R. W.
[S.l.] : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Molecular-beam epitaxy techniques have been used to prepare coherent, crystalline superlattices of erbium and yttrium. Magnetometer measurements indicate that the transition temperatures for the superlattices are significantly lower than those for bulk erbium. The first-order transition to a conical ferromagnetic state observed in Er is suppressed. The c-axis modulated phase is stable in c-axis fields up to 17 kOe, while the field dependence of the basal-plane moments differs little from bulk Er. These results suggest that the magnetoelastic energy has been altered in the superlattice samples due to lattice clamping to the substrate and at the interfaces.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesBorchers, J. ; Sinha, Shantanu ; Salamon, M. B. ; Du, R. ; Flynn, C. P. ; Rhyne, J. J. ; Erwin, R. W.
[S.l.] : American Institute of Physics (AIP)
Published 1987Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Single-crystal superlattices of dysprosium and yttrium with bilayer thickness ranging from 70 to 105 A(ring) have been grown using molecular-beam epitaxy techniques. Detailed x-ray analysis of these samples shows them to be coherent structures with abrupt interfaces between the alternating layers. These superlattices differ magnetically from pure Dy with properties that show distinct dependence on the thickness of the intervening Y.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesErwin, R. W. ; Rhyne, J. J. ; Borchers, J. ; Salamon, M. B. ; Du, R. ; Flynn, C. P.
[S.l.] : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Single-crystal superlattices (Erx/Yy) have been grown by molecular-beam epitaxy techniques with the c axis perpendicular to the growth plane. The magnetic structure has been determined by neutron diffraction, and demonstrates long-range order of the c-axis Ising-like Er moments extending through the "magnetically dead'' Y layers (TN superlattice ≈TN bulk), as was found for the X-Y superlattices (Dyx /Yy). The Er c-axis effective turn angles for x=13, 23, and 32 are all nearly temperature independent at ω≈2π/7, the high-temperature lock-in value in bulk Er (although it is difficult to determine if a lock-in transition occurs), with the ferromagnetic transition completely suppressed. This results from the fact that the magneto-elastic energy density, which causes ω to decrease in the bulk, is considerably reduced in the superlattices. As in bulk Er, the high-temperature sinusoidally modulated phase "squares up'' upon reducing the temperature, and this squaring is enhanced at the basal-plane ordering transition, which is at roughly half the temperature found in bulk Er. The basal-plane turn angle tends towards the low-temperature value of bulk Er, ω≈π/4, which is surprisingly different from the c axis ω.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesRhyne, J. J. ; Erwin, R. W. ; Borchers, J. ; Sinha, S. ; Salamon, M. B. ; Du, R. ; Flynn, C. P.
[S.l.] : American Institute of Physics (AIP)
Published 1987Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The magnetic ordering of highly perfect single-crystal multilayer films of alternate layers of magnetic Dy and nonmagnetic Y prepared by molecular beam epitaxy has been studied by neutron diffraction. Results on a series of films with Dy thicknesses of approximately 16 atomic planes (≈45 A(ring)) and Y thicknesses ranging from 10 to 22 planes have confirmed the existence of long-range helimagnetic ordering of the Dy 4f spins which is propagated through the intervening Y layers in phase coherence. The propagation vectors in both Dy and Y layers have been calculated from the wave vector of the magnetic satellites and the intensity of the bilayer harmonics. The propagation vector for Dy decreases continuously with temperature, while that in the Y is temperature independent and equal to 0.31 A(ring)−1. The nature of the ordering and the noninteger multiple of π for the phase change of the propagation wave vector across the Y, suggests that the mechanism of long-range coupling is a conduction band spin-density wave in both Y and Dy stabilized by the 4f spins of the Dy. No intrinsic ferromagnetic transition is observed due to the clamping effect of the Y layers on the Dy magnetostriction. The application of a field along basal plane directions destroys the helical order and produces a ferromagnetic state with all spins aligned along the field direction. The moment in the induced ferromagnetic state is 10 μB, while that calculated for the zero-field helical state ranges from 7.5μB to 9.5μB for different samples, suggesting a possible static disorder of some Dy spins superimposed on the intrinsic long-range helical state.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: A process is described whereby hcp rare-earth metals can be grown heteroepitaxially as high-quality single-crystal films with the b axis normal to the growth plane. The growth employs molecular beam epitaxy, starting from available sapphire substrates. The results of characterization by several techniques are described. © 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: The influence of lattice misfit on the growth of Ti (0001) is investigated in the limit of small negative (−1%) and large positive (+6.8%) misfit by choosing MgO (111) and Al2O3 (0001) as substrate materials. Reflection high energy electron diffraction imaging and intensity measurements during growth reveal two-dimensional nucleation of islands on MgO, in contrast to three-dimensional nucleation on Al2O3. X-ray analysis of 30-nm-thick films on MgO shows a two-component line shape in transverse scans of the (0002) and (0004) reflections, pointing to a high degree of structural coherence in the weak disorder limit. The surface morphology of films grown on MgO depends strongly on the substrate temperature during growth. © 1997 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesWei, L. C. ; Lang, E. ; Flynn, C. P. ; Averback, R. S.
Woodbury, NY : American Institute of Physics (AIP)
Published 1999Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: The efficiency of producing freely migrating vacancy defects in irradiated Cu3Au was examined using electrical resistivity measurements of radiation-induced ordering on highly perfect single-crystal films. Relative efficiencies for He, Ne, and Ar bombardments at different ion energy and specimen temperature were obtained. The ratio of the efficiencies of 0.6 MeV Ne to He increased with temperature from ∼0.25 at 340 K to a saturation value of ∼0.40 at 520 K. For Ar and He, the ratio increased from ∼0.11 at 360 K to ∼0.18 at 540 K. Estimates indicate that about half of all defects created in cascades are freely migrating. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have accurately determined the elastic state and the magnetic phase diagram of epitaxially clamped Er on Al2O3 through the range of strong bulk magnetostriction. The elastic free energy is too small to explain the observed change of the Curie point. The additional required energy of ∼5% of the self-energy for full perpendicular magnetization must arise from differences of domain configuration between the magnetized bulk and the film. © 2000 American Institute of Physics.Type of Medium: Electronic ResourceURL: