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  • 1995-1999  (2)
  • 75.10.Hk  (1)
  • PACS. 64.60.Fr Equilibrium properties near critical points, critical exponents - 64.60.Kw Multicritical points - 75.50.Mm Magnetic liquids  (1)
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  • 1995-1999  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    The correction-to-scaling exponent in dilute systems (1999)
    Springer
    JETP letters 69 (1999), S. 747-752 
    Details
    ISSN: 1090-6487
    Keywords: 75.10.Hk ; 64.60.Ak ; 05.50.+q
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The leading correction-to-scaling exponent ω for the three-dimensional (3D) dilute Ising model is calculated in the framework of the field theoretic renormalization group approach. Both in the minimal subtraction scheme and in the massive field theory (resummed four-loop expansion) excellent agreement with recent Monte Carlo calculations (H. G. Ballesteros et al., Phys. Rev. B 58, 2740 (1998)) is achieved. The expression of ω as a series in a $$\sqrt \varepsilon $$ expansion up to O(ɛ2) does not permit a reliable estimate for d=3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.568085
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic fluids in an external field (1999)
    Springer
    The European physical journal 8 (1999), S. 113-123 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 64.60.Fr Equilibrium properties near critical points, critical exponents - 64.60.Kw Multicritical points - 75.50.Mm Magnetic liquids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Within mean field approximation we investigate the phase diagrams of magnetic fluids in presence of a magnetic field. In a finite field the magnetic phase transition is absent, but instead a line of first order liquid-liquid transitions ending in a critical point occurs for a magnetic interaction, which is sufficiently strong. Varying the magnetic field these critical points extend from the tricritical point at H=0 to a critical endpoint. For a fluid with Ising spins we calculate the critical lines and several tricritical exponents analytically. For Heisenberg fluids we obtain the phase diagrams from a numerical solution of the mean field equations of state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050673
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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