Correlations of two-dimensional super-paramagnetic colloids in tilted external magnetic fields
نویسندگان
چکیده
منابع مشابه
Crystal structures of two-dimensional magnetic colloids in tilted external magnetic fields.
The stability of different crystal lattices of two-dimensional superparamagnetic suspensions that are confined to a planar liquid-gas interface and exposed to a tilted external magnetic field is studied theoretically by lattice sum minimizations. The magnetic field induces magnetic dipoles onto the colloidal particles along its direction, whose strength can be controlled by the amplitude of the...
متن کاملGlass transition in a two-dimensional system of magnetic colloids
We describe experiments on binary mixtures of superparamagnetic colloidal particles confined by gravity to a flat horizontal water-air interface. The colloids repel each other because of their magnetic dipole moments induced by a vertical external magnetic field B. By tuning B, the effective temperature of the system can be adjusted over several orders of magnitude. Particle coordinates are mon...
متن کاملCoulomb correlations in a two-dimensional electron gas in large magnetic fields
We present an investigation of the dynamics of the inter-Landau-level ~LL! excitations of a two-dimensional electron gas ~2DEG! in large magnetic fields using coherent time-resolved nonlinear spectroscopy. The results are compared directly with measurements on undoped quantum wells. We observe time-dependent Coulomb coupling between the LL’s induced by the 2DEG that induces a large transfer of ...
متن کاملInterlayer Aharonov-Bohm interference in tilted magnetic fields in quasi-one-dimensional organic conductors.
Different types of angular magnetoresistance oscillations in quasi-one-dimensional layered materials, such as organic conductors (TMTSF)2X, are explained in terms of Aharonov-Bohm interference in interlayer electron tunneling. A two-parameter pattern of oscillations for generic orientations of a magnetic field is visualized and compared to the experimental data. Connections with angular magneto...
متن کاملMagnetic correlations in the two-dimensional Anderson-Hubbard model
The two-dimensional Hubbard model in the presence of diagonal and off-diagonal disorder is studied at half-filling with a finite-temperature quantum Monte Carlo method. Magnetic correlations as well as the electronic compressibility are calculated to determine the behavior of local magnetic moments, the stability of antiferromagnetic long-range order ~AFLRO!, and properties of the disordered ph...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Molecular Physics
سال: 2007
ISSN: 0026-8976,1362-3028
DOI: 10.1080/00268970701441892