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  • 1
    Electronic Resource
    Electronic Resource
    Matrix effect of bombardment-induced Gibbsian segregation on Cu depletion at a Cu x Ni100−x subsurface (1995)
    Springer
    Applied physics 61 (1995), S. 419-423 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A dynamic Monte-Carlo program, including an improved BIGS (Bombardment-Induced Gibbsian Segregation) model was employed to study the matrix effect of BIGS and its influence on Cu depletion at the subsurface under 1 keV Ar-ion bombardment of a Cu−Ni alloy. The calculation results show that not only at high fluences (the steady state) but also at low fluences, the Cu subsurface depletion depends on its bulk composition. This is because the atomic jump rateW 21 of Cu from the second layer to the first layer is correlated to Cu bulk composition at any fluence. We also found that the product of the non-segregating species concentration at the first layer with the segregating species concentration at the second layer plays a more important role than other parameters in determiningW 21 under low current conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01540117
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  • 2
    Electronic Resource
    Electronic Resource
    Matrix effect of bombardment-induced Gibbsian segregation on Cu depletion at a CuxNi100−xsubsurface (1995)
    Springer
    Applied physics 61 (1995), S. 419-423 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  A dynamic Monte-Carlo program, including an improved BIGS (Bombardment-Induced Gibbsian Segregation) model was employed to study the matrix effect of BIGS and its influence on Cu depletion at the subsurface under 1 keV Ar-ion bombardment of a Cu–Ni alloy. The calculation results show that not only at high fluences (the steady state) but also at low fluences, the Cu subsurface depletion depends on its bulk composition. This is because the atomic jump rate W 21 of Cu from the second layer to the first layer is correlated to Cu bulk composition at any fluence. We also found that the product of the non-segregating species concentration at the first layer with the segregating species concentration at the second layer plays a more important role than other parameters in determining W 21 under low current conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01540117
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  • 3
    Electronic Resource
    Electronic Resource
    18-Hydroxy-11-deoxycorticosterone. Chemical synthesis, structure, and circular dichroism (1976)
    s.l. : American Chemical Society
    The @journal of organic chemistry 41 (1976), S. 2552-2556 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00877a010
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of substrate hot-carrier injection on quasibreakdown of ultrathin gate oxide (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 6590-6592 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The quasibreakdown (QB) of ultrathin gate oxide under substrate hot-hole and -electron injection was investigated. It has been found that hot-carrier injection greatly degrades the immunity to the QB and the hot hole is more effective than the hot electron in the degradation. The phenomenon was explained by an interface damage-controlled mechanism and verified again by monitoring the interface state densities at the onset point of QB. It also has been found that QB occurs when the interface state density reaches a critical value, regardless of the stress current density and stressing carrier type. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.371626
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of ion-irradiation-induced disorder on the low-field magnetoresistance of La0.67A0.33MnO3 (A=Sr, Ca) (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 4791-4793 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report on a systematic study of the correlation between the disorder produced by ion irradiation and the magnetoresistance (MR) behavior of two doped manganite films: a highly textured La0.67Sr0.33MnO3 film on a (100) LaAlO3 substrate and a film of La0.67Ca0.33MnO3 on a YSZ substrate with a high degree of large-angle grain boundary disorder. The films were grown via metal organic chemical vapor deposition and exposed to irradiation of 200 keV Ne ions. The temperature and field dependence of the resistivity were measured on the same samples at different levels of damage. For the Sr-doped film, the bulk magnetic properties were observed to degrade faster with cumulative damage than transport. For both films at low temperature, a low-field hysteretic MR was either induced or enhanced by ion damage. These effects are discussed in terms of diffusive transport through "granular" magnetically disordered regions. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370483
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  • 6
    Electronic Resource
    Electronic Resource
    Interlayer segregation of Cu atoms in Ta/NiFe/Cu/NiFe/FeMn/Ta spin-valve multilayers and its influence on magnetic properties (2002)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 91 (2002), S. 3759-3763 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Experimental results show that the exchange coupling field (Hex) of NiFe/FeMn for Ta/NiFe/FeMn/Ta multilayers is higher than that for spin-valve multilayers Ta/NiFe/Cu/NiFe/FeMn/Ta. In order to find out the reason, the composition and chemical states at the surface of Ta(12 nm)/NiFe(7 nm), Ta(12 nm)/NiFe(7 nm)/Cu(4 nm), and Ta(12 nm)/NiFe(7 nm)/Cu(3 nm)/NiFe(5 nm) were studied using x-ray photoelectron spectroscopy. The results show that no elements from lower layers float out or segregate to the surface in the first and second samples. However, Cu atoms segregate to the surface of Ta(12 nm)/NiFe(7 nm)/Cu(3 nm)/NiFe(5 nm) multilayers, i.e., Cu atoms segregate to the NiFe/FeMn interface for Ta/NiFe/Cu/NiFe/FeMn/Ta multilayers. We believe that the presence of Cu atoms at the interface of NiFe/FeMn is one of the important factors which causes the exchange coupling field (Hex) of Ta/NiFe/Cu/NiFe/FeMn/Ta to be weaker than that of Ta/NiFe/FeMn/Ta. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1450033
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  • 7
    Electronic Resource
    Electronic Resource
    Improved laser-heated pedestal growth system for crystal growth in medium and high isostatic pressure environment (1999)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 4606-4608 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A modified apparatus for single-crystal-fiber growth in an isostatic gaseous environment and for a large range of pressure (100 mbar up to 100 bar) using a floating-zone-type method known as laser-heated pedestal growth is described. The difficulties and advantages of its design are discussed through examples of crystal growth of some oxide materials. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150120
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  • 8
    Electronic Resource
    Electronic Resource
    A setup combining four-point probe and surface magneto-optical Kerr effect for measurements of magnetotransport and magnetic properties of ultrathin films in ultrahigh vacuum (1998)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 69 (1998), S. 1811-1813 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A four-point probe, suitable for in situ surface resistance and magnetoresistance (MR) measurements of ultrathin films, is described. The four-point probe head is mounted and fixed at the center of an electromagnet with the probes perpendicular to the applied magnetic field direction. The ultrathin magnetic film sample can be rotated to face the probe and moved to make contact with the probe using the sample manipulator. The resistance and MR of the magnetic ultrathin film can be measured. At the same sample position, the hysteresis loops can be measured using the surface magneto-optical Kerr effect technique. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148845
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  • 9
    Electronic Resource
    Electronic Resource
    Co-localization of histamine and dopamine-β-hydroxylase in sympathetic ganglion and release of histamine from cardiac sympathetic terminals of guinea-pig (2003)
    Oxford, UK : Blackwell Science Ltd
    Autonomic & autacoid pharmacology 23 (2003), S. 0 
    Details
    ISSN: 1474-8673
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Chemistry and Pharmacology , Medicine
    Notes: 1 The aim of this study was to investigate the co-localization of histamine and dopamine-β-hydroxylase in the superior cervical ganglion of guinea-pig and release of histamine from cardiac sympathetic terminals in guinea-pig isolated atrium. 2 Histidine decarboxylase (a histamine-synthesizing enzyme) mRNA signals were detected in the neurones of superior cervical ganglion of guinea-pig by in situ hybridization. The results of double-labelled immunofluorescence further confirmed the co-localization of histamine and dopamine-β-hydroxylase in the large principle neurons and small intensely fluorescent cells in the superior cervical ganglion. The immunoreactivities of both histamine and dopamine-β-hydroxylase were significantly attenuated after 6-hydroxydopamine-induced lesion of sympathetic nerves. 3 The refractory electrical field stimulation caused the release of histamine from cardiac sympathetic terminals of guinea-pig isolated atria (112.14 ± 40.34 ng ml−1), which was significantly attenuated to 35 ± 15.57 ng ml−1 by reserpine pretreatment. Following administering compound 48/80, a mast cell degranulator, electrical field stimulation induced a dramatic increase of endogenous histamine release from isolated atria (303.57 ±72.93 ng ml−1). When compound 48/80 was added to the reserpine-treated atria, the release of histamine induced by field stimulation was decreased to 207.14 ± 76.39 ng ml−1. 4 These results provide novel evidence that histamine co-exists with noradrenaline in sympathetic nerves and might act as a neurotransmitter to modulate sympathetic neurotransmission.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1474-8673.2004.00305.x
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  • 10
    Electronic Resource
    Electronic Resource
    A novel mutation of the DSRAD gene in a Chinese family with dyschromatosis symmetrica hereditaria (2004)
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 29 (2004), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Dyschromatosis symmetrica hereditaria (DSH) is a pigmentary genodermatosis of autosomal dominant inheritance characterized by a mixture of hyperpigmented and hypopigmented macules distributed on the dorsal aspects of the hands and feet. It is caused by mutations of the RNA-specific adenosine deaminase gene. We report the identification of a Chinese family with a three-generation pedigree of DSH, in whom a novel tyrosine substitution mutation in DSRAD was demonstrated: a heterozygous nucleotide A→G transition at position 2879 in exon 10 of the DSRAD gene was detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.2004.01548.x
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