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  • American Institute of Physics (AIP)  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Overview of the advanced photon source (invited) : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 1403-1405 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The Advanced Photon Source planned for construction at Argonne National Laboratory is based on a low-emittance storage-ring operated at 7 GeV and capable of providing tunable undulator radiation from 4 to 40 keV (using the first and the third harmonics). A technical description of the accelerator facility and the storage ring is presented in this overview, along with a brief summary of the characteristics of radiation that will be available from the insertion devices. Various plans for user access to this national user facility are also given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1141003
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  • 2
    Electronic Resource
    Electronic Resource
    The Advanced Photon Source at Argonne National Laboratory–Summer 1991 : Proceedings of the 4th international conference on synchrotron radiation instrumentation (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 1557-1558 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The Advanced Photon Source at Argonne National Laboratory is designed as a national synchrotron radiation user facility where extremely bright 1–100 keV x-ray beams will be used for multidisciplinary research. Construction of the facility has begun. Accelerator components, insertion devices, optical elements, and optical element cooling schemes have been and continue to be the subjects of intensive research and development. Proposals to conduct research at the Advanced Photon Source have been received from industrial, university, and national laboratory scientists representing a broad range of scientific disciplines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143831
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  • 3
    Electronic Resource
    Electronic Resource
    Antiferromagnetism in the high-Tc related compounds (invited) (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 4015-4018 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetic susceptibility measurements on La2CuO4−y have revealed maxima in temperature indicative of antiferromagnetic ordering. Powder diffraction measurements have demonstrated the existence of superlattice peaks at temperatures below those corresponding to the susceptibility maxima, and polarized neutron measurements have confirmed that the peaks are indeed of magnetic origin. The deduced antiferromagnetic structure in the orthorhombic (Cmca) phase of La2CuO4−y consists of ferromagnetic sheets of Cu atoms in the b-c plane which are alternating in sign along the a axis [100]. The moment is parallel to the c axis. The Neel temperature is extremely sensitive to the oxygen deficiency y and decreases rapidly to zero as y goes from 0.03 to 0. The saturated moment is (approximately-equal-to)0.4 μB/Cu atom for samples with the highest TN (290 K). Antiferromagnetic spin fluctuations have also been observed by polarized neutron scattering in the paramagnetic phase above TN. Recent results obtained on magnetic ordering in the YBa2Cu3O6−y family of compounds are also discussed, together with the possible implications for novel superconductivity mechanisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340555
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  • 4
    Electronic Resource
    Electronic Resource
    Magnetic x-ray scattering studies of the rare-earth metal holmium (invited) (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 3619-3622 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present the results of recent magnetic x-ray scattering experiments on the rare-earth metal Ho performed using both a rotating anode source and synchrotron radiation. Specifically, we have measured the Ho(00l)+ magnetic satellites in the simple spiral antiferromagnetic phase between 132 and 20 K and in the conical phase below 20 K. Although the cross section for magnetic x-ray scattering is reduced from the usual Thomson cross section by a factor of ≈105, the incommensurate magnetic satellites are well separated from the main Bragg peaks. Thus, detection of the satellites is possible with a rotating anode source and extensive high-resolution studies of them are straightforward with synchrotron radiation. The assembled data are in good agreement with the results of magnetic neutron scattering published previously for different Ho samples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.335024
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