ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1995-1999  (5)
Collection
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Antiferromagnetism in solid oxygen (1997)
    Springer
    Hyperfine interactions 104 (1997), S. 381-385 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Solid oxygen is known to have spontaneous antiferromagnetic order in its lowest temperature phase. Muons implanted in \alpha\mbox- O2 in zero applied magnetic field take up positions where the local field is non‐zero and precess at a frequency proportional to the sublattice magnetisation. The reduction of the magnetisation as the temperature increases toward TN is similar to that expected for the case of an anisotropic AFM coupling among spins of O_2 molecules. A fit to a simple non‐interacting, harmonic spin wave model yields an anisotropy‐induced gap in the spin wave density of states Eg/kB=80.5(6) K, implying a large anisotropy constant K\approx 16J.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012641624313
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Muonium diffusion in “dirty” solid krypton (1997)
    Springer
    Hyperfine interactions 105 (1997), S. 253-258 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Muonium spin dynamics in solid krypton in the presence of deliberately introduced impurities has been studied in the temperature range from 2 K to 115 K. At temperatures up to 40 K, muonium transverse relaxation rate turns out to be virtually unaffected by impurities. This implies that the Mu energy level shifts in the neighboring wells induced by impurities are smaller than the characteristic Mu activation energy in the one‐phonon regime of quantum diffusion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012659522921
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Charge transport in Al2O3 (1997)
    Springer
    Hyperfine interactions 105 (1997), S. 277-282 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Muon spin relaxation measurements in transverse and zero magnetic fields reveal muonium atom formation to be a thermally activated process in Al2O3 (sapphire) crystal. Experiments in electric fields up to 100 kV/cm unambiguously show that muonium is formed via the delayed channel of the radiolysis electron (created in the muon’s track) transport to the μ+. The formation of the “electronic polaron” is believed to be the limiting mechanism for electron transport in sapphire.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012667824738
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Temperature and magnetic field dependences of the London penetration depth and coherence length in the vortex state of YBa2Cu3O7-\delta (1997)
    Springer
    Hyperfine interactions 105 (1997), S. 161-166 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report TF‐μ+SR measurements of the London penetration depth in the high‐Tc superconductor YBa2Cu3O7-\delta as a function of temperature T and magnetic field H. The magnetic field distribution in high quality single crystals of YBa2Cu3O6.95 was fit assuming a triangular vortex lattice with an average in‐plane penetration depth \lambdaab=1155(3) Å, extrapolated to zero temperature and magnetic field. We find that \lambdaab(T,H) increases linearly both as a function of magnetic field and temperature in the field range studied. This unusual behaviour is attributed to an unconventional pairing scheme in which there are line nodes in the superconducting energy gap function. Measurements have also been made on a deoxygenated sample, YBa_2Cu_3O6.60. The lineshapes for YBa2Cu3O6.60 clearly show the high‐field cutoff due to the finite coherence length \xiab. A preliminary analysis indicates that \xiab(T,H) increases linearly as a function of temperature and decreases with increasing magnetic field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012634917469
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Does an electron form a bubble in liquid neon? (1997)
    Springer
    Hyperfine interactions 105 (1997), S. 271-276 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Muon spin relaxation measurements in liquid neon in electric fields up to 35 kV/cm reveal the existence of a delocalized electron state which is responsible for delayed muonium atom formation. Other fraction of radiolysis electrons created in the positive muon’s ionization track is believed to be localized inside bubbles and therefore possesses low mobility. Bubble formation in liquid neon is discussed in detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1012615807900
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...