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For Nd2Cu04, the R-Cu exchange interaction is a relevant quantity for the description of the low-energetic collective magnetic excitations. Collective excitations were studied... [Pg.533]

For Nd2-2 Ce tCu04 the magnetic excitations are shifted to lower energy transfers for increasing Ce concentrations, which directly reflect the weaker R-Cu exchange interaction... [Pg.533]

See other pages where R-Cu exchange interaction is mentioned: [Pg.533] [Pg.540]

See also in sourсe #XX -- [ Pg.532 , Pg.533 , Pg.540 ]