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  • PACS. 78.20.Ls Magnetooptical effects – 75.50.Cc Other ferromagnetic metals and alloys  (2)
  • Animals  (1)
  • 2000-2004  (3)
  • 1
    Digitale Medien
    Digitale Medien
    Giant magneto-optical response of ferromagnetic EuB 6 (2002)
    Springer
    The European physical journal 27 (2002), S. 3-6 
    Details
    ISSN: 1434-6036
    Schlagwort(e): PACS. 78.20.Ls Magnetooptical effects – 75.50.Cc Other ferromagnetic metals and alloys
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: EuB6, a ferromagnet with a Curie temperature of T C ∼ 15 K, exhibits very large magnetoresistive effects at temperatures both above and below T C . We present our magneto-optical investigations, including measurements of the reflectivity and Kerr rotation, covering the spectral range from the infrared up to the ultraviolet, as a function of temperature between 1.5 and 20 K and in external magnetic fields from 0 to 10 T. The Kerr rotation at high fields and low temperatures is enormous. The spectra reflect aspects of the large magnetoresistance and are shown to discriminate between the spectroscopic response of localized and itinerant electronic states in the ferromagnetic state.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1140/epjb/e20020123
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 2
    Digitale Medien
    Digitale Medien
    Polar Kerr rotation of the ferromagnet (2003)
    Springer
    The European physical journal 33 (2003), S. 47-54 
    Details
    ISSN: 1434-6036
    Schlagwort(e): PACS. 78.20.Ls Magnetooptical effects – 75.50.Cc Other ferromagnetic metals and alloys
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: Magneto-optical data on EuB 6 , a ferromagnet with a Curie temperature T C ∼ 15 K, are presented and discussed in detail. We have measured the polar Kerr rotation, covering a spectral range from the infrared up to the ultraviolet, as a function of temperature between 1.5 and 20 K and in external magnetic fields between 0 and 10 T. The Kerr rotation in high fields and at low temperatures is enormous. Our observations, which implicitly reflect the large magnetoresistive effects, are shown to discriminate between the spectroscopic response of localized and itinerant electronic states. Our data analysis is based on the phenomenological Lorentz-Drude model, following from the classical dispersion theory and appropriately extended to magneto-optical experiments.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1140/epjb/e2003-00140-5
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
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    Unbekannt
    Activation of the DNA replication checkpoint through RNA synthesis by primase (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2000-09-23
    Beschreibung: When DNA replication is inhibited during the synthesis (S) phase of the cell cycle, a signaling pathway (checkpoint) is activated that serves to prevent mitosis from initiating before completion of replication. This replication checkpoint acts by down-regulating the activity of the mitotic inducer cdc2-cyclin B. Here, we report the relation between chromatin structure and induction of the replication checkpoint. Chromatin was competent to initiate a checkpoint response only after the DNA was unwound and DNA polymerase alpha had been loaded. Checkpoint induction did not require new DNA synthesis on the unwound template strand but did require RNA primer synthesis by primase. These findings identify the RNA portion of the primer as an important component of the signal that activates the replication checkpoint.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Michael, W M -- Ott, R -- Fanning, E -- Newport, J -- 52948/PHS HHS/ -- R01GM33523-16/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Sep 22;289(5487):2133-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, San Diego, La Jolla, CA 92093-0349, USA. matt@mcb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11000117" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Aphidicolin/pharmacology ; *CDC2-CDC28 Kinases ; Carrier Proteins/metabolism ; Chromatin/*metabolism ; Cyclin E/metabolism ; Cyclin-Dependent Kinase 2 ; Cyclin-Dependent Kinases/metabolism ; DNA Helicases/metabolism ; DNA Polymerase I/antagonists & inhibitors/metabolism ; DNA Primase/*metabolism ; *DNA Replication/drug effects ; DNA, Single-Stranded/metabolism ; DNA-Binding Proteins/metabolism ; Mitosis ; Nuclear Proteins/metabolism ; Phosphorylation ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; RNA/*biosynthesis ; Recombinant Proteins/metabolism ; S Phase ; *Saccharomyces cerevisiae Proteins ; Signal Transduction ; Xenopus ; Xenopus Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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