The fundamental physical properties of doped LaMnO 3, generically termed “manganites,”
and much of the underlying physics, were known more than 40 years ago. This article first …

We review results concerning the critical behavior of spin systems at equilibrium. We
consider the Ising and the general O (N)-symmetric universality classes, including the N→ 0 …

We improve the theoretical estimates of the critical exponents for the three-dimensional
Heisenberg universality class. We find γ= 1.3960 (9), ν= 0.7112 (5), η= 0.0375 (5), α …

Critical phenomena of ferromagnetic transition at finite temperatures are studied in double-
exchange systems. In order to investigate strong interplay between charge and spin degrees …

We have prepared polycrystalline samples La 0.7 Ca 0.3-x Ba x MnO 3 (x= 0, 0.025, 0.05,
0.075 and 0.1) by solid-state reaction, and then studied their magnetic properties and …

Ferromagnetic transition in three-dimensional double-exchange models is studied by the
Monte Carlo method. Critical temperature T c is precisely determined by finite-size scaling …

In this work the critical behaviour of films of La 0.7 Ba 0.3 MnO 3, La 0.7 Sr 0.3 MnO 3, La 0.7
Ca 0.3 MnO 3 and (LaMn) 1-δ O 3 is studied. Apart from the La 0.7 Ca 0.3 MnO 3 film, each …

This work focuses on the microstructural analysis, magnetic properties, magnetocaloric
effect, and critical exponents of Ni0. 6Cd0. 2Cu0. 2Fe2O4 ferrites. These samples, denoted …

Results of a study of dc magnetization M (T, H), performed on a Nd 0.6 Pb 0.4 MnO 3 single
crystal in the temperature range around TC (Curie temperature) which embraces the …

The present paper investigates the influence of Ca-doping on the structural, magnetic,
magnetocaloric properties and the critical behavior of La 0.6 Bi 0.1 Sr 0.3− x Ca x Mn 0.9 Cu …