Search Results - subject:"Spin models"

Boundary and finite-size effects in small magnetic systems

Kachkachi, H.; Garanin, D.A. - In: Physica A: Statistical Mechanics and its Applications 300 (2001) 3, pp. 487-504

We study the effect of free boundaries in finite magnetic systems of cubic shape on the field and temperature dependence of the magnetisation within the isotropic model of D-component spin vectors in the limit D→∞. This model is described by a closed system of equations and captures the...

Persistent link: https://www.econbiz.de/10011061226

Critical behavior of a class of noncommutative aperiodic models on hierarchical lattices

Salinas, S.R.; Wreszinski, W.F. - In: Physica A: Statistical Mechanics and its Applications 297 (2001) 3, pp. 434-440

We propose two schemes to construct aperiodic spin models on hierarchical lattices. As in previous works, we choose …

Persistent link: https://www.econbiz.de/10011062236

On the origin of biquadratic exchange in spin 1 chains

Mila, F.; Zhang, Fu-Chun - In: The European Physical Journal B - Condensed Matter and … 16 (2000) 1, pp. 7-10

Persistent link: https://www.econbiz.de/10009281123

Phase transitions in generalized chiral or Stiefel's models

Loison, D. - In: The European Physical Journal B - Condensed Matter and … 15 (2000) 3, pp. 517-521

Persistent link: https://www.econbiz.de/10009281712

A spin- <InlineEquation ID="Equ1"> <EquationSource Format="TEX">$${1 \over 2}$$ </EquationSource> </InlineEquation> model for CsCuCl<Subscript>3</Subscript> in an external magnetic field

Honecker, A.; Kaulke, M.; Schotte, K.D. - In: The European Physical Journal B - Condensed Matter and … 15 (2000) 3, pp. 423-434

Persistent link: https://www.econbiz.de/10009282236

A numerical study of the formation of magnetisation plateaus in quasi one-dimensional spin-1/2 Heisenberg models

Wießner, R.M.; Fledderjohann, A.; Mütter, K.-H.; … - In: The European Physical Journal B - Condensed Matter and … 15 (2000) 3, pp. 475-481

Persistent link: https://www.econbiz.de/10009282330

Critical exponents of random XX and XY chains: Exact results via random walks

Rieger, H.; Juhász, R.; Iglói, F. - In: The European Physical Journal B - Condensed Matter and … 13 (2000) 3, pp. 409-412

Persistent link: https://www.econbiz.de/10009325014

High temperature expansion for frustrated and unfrustrated S=<InlineEquation ID="Equ1"> <EquationSource Format="TEX">$${1 \over 2}$$ </EquationSource> </InlineEquation> spin chains

Bühler, A.; Elstner, N.; Uhrig, G.S. - In: The European Physical Journal B - Condensed Matter and … 16 (2000) 3, pp. 475-486

Persistent link: https://www.econbiz.de/10009325050

Magnetic field induced ordering in quasi-one-dimensional quantum magnets

Wessel, S.; Haas, S. - In: The European Physical Journal B - Condensed Matter and … 16 (2000) 3, pp. 393-396

Persistent link: https://www.econbiz.de/10009325061

Field-induced magnetic reorientation and effective anisotropy of a ferromagnetic monolayer within spin wave theory

Fröbrich, P.; Jensen, P.J.; Kuntz, P.J. - In: The European Physical Journal B - Condensed Matter and … 13 (2000) 3, pp. 477-489

Persistent link: https://www.econbiz.de/10009325088