MAGNETOSTRICTION IN SINGLE-CRYSTAL AND POLYCRYSTALLINE SILVER DOPED WITH RARE-EARTHS

We have measured the low-temperature magnetostriction in silver-rare-earth single-crystal and polycrystaline alloys at rare-earth concentrations of about 0.5%. For each monocrystal, the a100a and a111a magnetostrictions are of the same sign and follow the sign of the Stevens factor α. Unannealed polycrystals show quite different behavior from the monocrystals. © 1979 The American Physical Society.