Microphase separation and modulated phases in a Coulomb frustrated Ising ferromagnet
نویسندگان
چکیده
منابع مشابه
Microphase Separation and Modulated Phases in a Coulomb Frustrated Ising Ferromagnet
(received ; accepted) PACS. 05.50+q – Lattice theory and statistics; Ising problems. PACS. 05.70.Fh – Phase transition: general aspects. PACS. 64.60.Cn – Order-disorder and statistical mechanics of model systems. Abstract. – We study a 3-dimensional Ising model in which the tendency to order due to short-range ferromagnetic interactions is frustrated by competing long-range (Coulombic) interact...
متن کاملMonte Carlo study of the three-dimensional Coulomb frustrated Ising ferromagnet.
We have investigated, by Monte Carlo simulation, the phase diagram of a three-dimensional Ising model with nearest-neighbor ferromagnetic interactions and small, but long-range (Coulombic) antiferromagnetic interactions. We have developed an efficient cluster algorithm and used different lattice sizes and geometries, which allows us to obtain the main characteristics of the temperature-frustrat...
متن کاملExotic phases in geometrically frustrated triangular Ising magnets
We report a systematic study of both quantum and classical geometrically frustrated Ising models with competing ordering mechanism. The ordering comes in the classical case from a coupling of two-dimensional (2D) layers and in the quantum model from the quantum dynamics induced by a transverse field. We develop a microscopic derivation of the Landau–Ginzburg–Wilson (LGW) Hamiltonian for these m...
متن کاملA Macroscopically Frustrated Ising Model
A disordered spin glass model where both static and dynamical properties depend on macroscopic magnetizations is presented. These magnetizations interact via random couplings and, therefore, the typical quenched realization of the system exhibit a macroscopic frustration. The model is solved by using a revisited replica approach, and the broken symmetry solution turns out to coincide with the s...
متن کاملMicrophase separation in nonequilibrium biomembranes.
Compositional heterogeneities of cell membranes are thought to play an important role in many physiological processes. We study how variations in the membrane composition can be driven by nonthermal fluctuating forces and therefore show how these can occur relatively far from any critical point for the membrane. We show that the membrane steady state is not only controlled by the strength of th...
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: Europhysics Letters (EPL)
سال: 1998
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i1998-00489-5