Vv. Runov et al., Spin correlations and magnetonuclear cross-correlation in Sm(Sr)-Mn-O perovskites in the low-temperature phase, JETP LETTER, 69(4), 1999, pp. 353-360
The results of measurements of spin correlations and magnetonuclear cross-c
orrelations (MNCCs) in the system (Sm1-xSrxMnO3)-Sm-154 with the perovskite
structure (x=0.25,0.4) in the low-temperature phase in magnetic fields 0<H
<1 kOe are presented. These are the first measurements performed by the sma
ll-angle polarized-neutron scattering method (SAPNS). It is shown that ferr
omagnetic correlations with a scale of 180-250 Angstrom and MNCCs character
izing the intercoupling of the magnetic and lattice subsystems on this scal
e exist in the system. It is found that in the low-temperature phase the sy
stem exhibits spin-glass properties. (C) 1999 American Institute of Physics
. [S0021-3640(99)01304-3].