Ag. Gavriliuk et al., High pressure studies of magnetic, electronic, and local structure properties in the rare-earth orthoferrites RFeO3 (R = Nd, Lu), HYPER INTER, 126(1-4), 2000, pp. 305-311
The high pressure modification of the electronic structure, magnetic proper
ties, and local crystal structure have been studied in the rare-earth RFeO3
(R=Nd, Lu) orthoferrites in both pure single crystals and polycrystalline
samples doped with Sn. The pressure dependences of the unit cell parameters
, Neel temperatures, supertransferred hyperfine magnetic fields at tin nucl
ei H-Sn, and the optical absorption edge have been obtained. The relations
of the obtained values with the geometry of exchange interactions were anal
yzed.