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  • 1
    Electronic Resource
    Electronic Resource
    Magnetic and structural transitions in La1−x Sr x MnO3: T-x phase diagram (1998)
    Springer
    JETP letters 68 (1998), S. 356-362 
    Details
    ISSN: 1090-6487
    Keywords: 75.30.Kz ; 61.50.Ks ; 72.20.My ; 75.50.Dd
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The electrical conductivity, magnetic susceptibility, magnetization, and submillimeter (v=5∓20 cm−1) permittivity and dynamic conductivity of La1−x Sr x MnO3 (0≤x≤ 0.45) single crystals are investigated. The anomalies in the temperature dependences of these quantities are identified with diverse magnetic and structural phase transformations, including antiferromagnetic and ferromagnetic ordering, structural transitions between strongly distorted (Jahn-Teller) and weakly distorted (pseudocubic) orthorhombic phases, structural transitions to a rhombohedral phase and unusual transitions to a polaron-ordering state. As a result, the complete T-x phase diagram of the system La1−2x Sr x MnO3 is constructed in a wide interval of temperatures T=4.2∓1050 K and concentrations x=0−0.45.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.567873
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic shielding of the brain in the vertebrates (1998)
    Springer
    Bulletin of experimental biology and medicine 126 (1998), S. 1251-1253 
    Details
    ISSN: 1573-8221
    Keywords: venous collectors ; magnetic shielding ; defense and adaptive reactions ; corticosteroids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A model of magnetic shielding of the brain and spinal cord in the vertebrates has been suggested. Endogenous magnetic field in this model is formed at the expense of directed transposition of charged blood erythrocytes in the circular venous collectors involving various compartments of the central nervous system. Detected changes in the levels of corticosteroids, erythrocyte count, blood viscosity, hematocrit, and clotting system during exposure to a magnetic field indicate that magnetic shielding is part of the defense and adaptive reaction complex.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02447166
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