Library

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
  • 1
    Electronic Resource
    Electronic Resource
    Instability of the trimeric antiferromagnetic chain (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 4713-4713 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: It is shown that the trimerized xy chain with only nearest-neighbor exchange interactions is unstable. The stable structure is a chain of dimers interacting through an intermediate spin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452689
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Electron spin resonance of the two-dimensional antiferromagnet Cs2MnCl4 (1985)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 83 (1985), S. 1431-1432 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The angular dependence of the line shape of Cs2MnCl4 indicates that this compound is a two-dimensional antiferromagnet. However, the angular dependence of the linewidth is smaller than expected. An intraplane exchange constant of J/kB =12.6 K is obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.449413
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Magnetic resonance of two-dimensional Heisenberg antiferromagnets with nonmagnetic impurities : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 7010-7011 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The EPR linewidths of (C3H7NH3)2Mn1−xCdxCl4 have been measured in the paramagnetic region as a function of temperature. An Arrhenius behavior exp(b/T) is observed with b strongly dependent on Cd concentration. This behavior in the pure compound is characteristic of soliton-like (skyrmion) excitations with b related to the excitation energy. In the doped compound, gapless nonlinear excitations are possible, resulting in a much different temperature-dependent linewidth. It is concluded that skyrmions dominate the low-temperature thermodynamics of two-dimensional magnets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.352413
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    A new model for dark solitons in magnetic films : The 41st annual conference on magnetism and magnetic materials (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 5159-5161 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In magnetic thin films, the nonlinear Schroedinger (NLS) equation predicts the formation of a pair of dark solitons with equal and opposite phase shifts from an input pulse without phase modulation. To consider the effects of higher input power, a modified NLS equation is derived including higher order dispersive and nonlinear terms. An analytic solution to the modified equation is obtained which has the form of a single dark soliton in agreement with recent experiments using higher input power. ©1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.365155
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Temperature dependence of the electron-spin-resonance linewidth of copper (II) trimers (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 6011-6012 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The temperature dependence of the electron-paramagnetic-resonance linewidth is calculated for a one-dimensional system of copper (II) trimers. The second moment of the resonance line is calculated from the following effective spin Hamiltonian H=Hs +Ha +Hh +H's , where Hs is the intratrimer isotropic exchange interaction, Ha is the intratrimer anisotropic exchange interaction, Hd is the dipole–dipole interaction, and H's is the intertrimer anisotropic exchange interaction. With the assumption that Hs is the dominant term in the Hamiltonian, the second moment has an approximate (T)1/2 temperature dependence. This is compared with experimental data for the copper trimer chain (4-picolinium) 2Cu3 Cl8.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346047
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Modeling of the power-dependent velocity of microwave magnetic envelope solitons in thin films (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 8307-8311 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Recently obtained single soliton solutions to the nonlinear Schrödinger equation with additional higher order nonlinear and dispersion terms have been used to model the properties of microwave magnetic envelope solitons in thin films and, in particular, the recently observed power-dependent soliton velocity in these films. The modeling is based on an empirical scaling between the dimensionless amplitude parameters in the higher order nonlinear Schrödinger (HONLS) equation and the pulse power levels in the experiment. Based on this scaling, the amplitude-dependent soliton velocity from the HONLS equation solution is shown to match the velocity versus power response from the experiment. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370674
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Magnetic properties of the copper trimer chains 4-picolinium2 Cu3Cl8 and 4-picolinium2 Cu3Br8 (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3028-3030 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: (4-pic)2Cu3Cl8 and (4-pic)2Cu3Br8 contain planar, bibridged copper halide trimers. The trimers are then stacked with longer semicoordinate Cu–halide–Cu bonds between adjacent trimers. The magnetic susceptibilities show that trimers are in a spin-1/2 ground state at low temperatures with coupling constants J/k=30 and −100 K, respectively, determined by fitting the data to a new high-temperature expansion with only exchange constants and external field as expansion parameters. We show that even though the spin-1/2 trimers are antiferromagnetically exchange coupled along the chain, they order ferromagnetically at low temperature providing examples of pseudo-one-dimensional, S=1/2, Heisenberg ferromagnets. Electron paramagnetic resonance measurements at the X band were also performed and confirm the susceptibility measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340909
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The Schwarzschild distribution and stellar disks (1987)
    Springer
    Astrophysics and space science 133 (1987), S. 25-27 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Exact radially-dependent particular solutions to the hydrodynamic equations for a disk galaxy are found. The mass density is calculated for a known Schwarzschild distribution function and also a distribution function is calculated from a known mass density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00637420
    Library Location Call Number Volume/Issue/Year 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...