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  • 1
    Electronic Resource
    Electronic Resource
    Optimized exchange biasing by controlled in situ oxidation (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 88 (2000), S. 6610-6613 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new, simple method is presented for the preparation of thin Co/CoO bilayers exhibiting considerably improved characteristics of the magnetic behavior and large exchange bias effects. The ultrathin antiferromagnetic layer is formed at room temperature by controlled in situ exposure of a clean metal layer to pure oxygen gas. The exposure amounts only 100–10 000 L at an oxygen pressure of 10−5 mbar. High purity gases can be used. This method allows to maintain optimum ultrahigh vacuum conditions in the preparation chamber which is an indispensable condition for the preparation of complex layer systems. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1321782
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  • 2
    Electronic Resource
    Electronic Resource
    Electrochemically prepared Si(111) 1×1-H surface (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 397-399 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Si(111) surfaces have been prepared electrochemically. Using high resolution electron energy loss spectroscopy it is demonstrated that perfectly terminated and clean Si(111) 1×1-H surfaces can be achieved. The dark current observed during electrochemical preparation is shown to be a very reliable control parameter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.110054
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  • 3
    Electronic Resource
    Electronic Resource
    High Q merit factor, low frequency acoustic resonant modes from a Pt{100} single crystal (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 3677-3679 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A spectroscopic technique, acoustic wave resonance spectroscopy (AWRS), has been developed to study the influence of long wavelength acoustic phonon excitations on surface chemical processes. Results are presented which demonstrate the sensitivity of AWRS to the state and composition of a Pt{100} single crystal sample, using an ultrahigh frequency and amplitude resolution acoustic spectrometer, a vector analyzer. A novel part of the ultrahigh vacuum compatible excitation system is a retractable piezo holder allowing the lithium niobate piezo transducer to be moved in situ into the bonding position against the side of the sample. Very sharp acoustic resonant modes with a Q merit factor of 1×104 appear only when the sample is clean. Carbon contamination reduces drastically both the intensity and the density of the peaks. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.117186
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of pH in electrolytic hydrogen termination of silicon
    Amsterdam : Elsevier
    Journal of Electroanalytical Chemistry 359 (1993), S. 287-292 
    Details
    ISSN: 0022-0728
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-0728(93)80416-F
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Enhanced sticking and adsorbate-adsorbate interaction in a H"2/N"2/Ag(111) physisorption system
    Amsterdam : Elsevier
    Surface Science 315 (1994), S. L943-L946 
    Details
    ISSN: 0039-6028
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0039-6028(94)90522-3
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Vibrational and rotational modes of physisorbed H"2 and N"2 on Ag(111) surfaces
    Amsterdam : Elsevier
    Chemical Physics Letters 225 (1994), S. 309-314 
    Details
    ISSN: 0009-2614
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0009-2614(94)87086-1
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  • 7
    Electronic Resource
    Electronic Resource
    Vibrational modes and line widths for hydrogen adsorbed on Ru(1010)
    Amsterdam : Elsevier
    Journal of Electron Spectroscopy and Related Phenomena 64-65 (1993), S. 591-598 
    Details
    ISSN: 0368-2048
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0368-2048(93)80126-7
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of surface acoustic waves on activity in heterogeneous catalysis (1995)
    Springer
    Applied physics 61 (1995), S. 243-251 
    Details
    ISSN: 1432-0630
    Keywords: 82.20 ; 82.65 ; 62.00
    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 synopsis of the recent developments in acoustically influencing and controlling gas-surface interactions is presented. The cleaning effect of ultrasound and its surface activation play an important role for the sonochemical enhancement of reactivity in chemical processes involving solid and liquid phases. So far, there have only been a few studies on the effects of surface acoustic waves on surface chemical reactions under high-vacuum conditions by the application of piezoelectric surface acoustic wave transducers. Very recently, metal films deposited between InterDigital Transducer (IDT) electrodes on a LiNbO3 substrate have shown a significant inerease in catalytic activity during surface acoustic excitation and Edge-Bonded Transducers (EBT) with a metal single crystal as a substrate have been used to acoustically influence the rate in the oscillatory reaction for CO oxidation. Tunable narrowband surface acoustic excitation is anticipated to be an efficient route to control catalytic processes, and in our work this approach is being used to investigate the physical basis of this process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538189
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of surface acoustic waves on activity in heterogeneous catalysis (1995)
    Springer
    Applied physics 61 (1995), S. 243-251 
    Details
    ISSN: 1432-0630
    Keywords: PACS82.20; 82.65; 62.00
    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 synopsis of the recent developments in acoustically influencing and controlling gas-surface interactions is presented. The cleaning effect of ultrasound and its surface activation play an important role for the sonochemical enhancement of reactivity in chemical processes involving solid and liquid phases. So far, there have only been a few studies on the effects of surface acoustic waves on surface chemical reactions under high-vacuum conditions by the application of piezoelectric surface acoustic wave transducers. Very recently, metal films deposited between InterDigital Transducer (IDT) electrodes on a LiNbO $_3$ substrate have shown a significant increase in catalytic activity during surface acoustic excitation and Edge-Bonded Transducers (EBT) with a metal single crystal as a substrate have been used to acoustically influence the rate in the oscillatory reaction for CO oxidation. Tunable narrowband surface acoustic excitation is anticipated to be an efficient route to control catalytic processes, and in our work this approach is being used to investigate the physical basis of this process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538189
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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