authors |
Shvartsman, VV; Bedanta, S; Borisov, P; Kleemann, W; Tkach, A; Vilarinho, PM |
nationality |
International |
journal |
PHYSICAL REVIEW LETTERS |
keywords |
STRONTIUM-TITANATE CERAMICS; SPIN-GLASSES; SUSCEPTIBILITY; MEMORY |
abstract |
By close analogy with multiferroic materials with coexisting long-range electric and magnetic orders a "multiglass" scenario of two different glassy states is observed in Sr(0.98)Mn(0.02)TiO(3) ceramics. Sr-site substituted Mn(2+) ions are at the origin of both a polar and a spin glass with glass temperatures T(g)approximate to 38 K and <= 34 K, respectively. The structural freezing triggers that of the spins, and both glassy systems show individual memory effects. Thanks to strong spin-phonon interaction within the incipient ferroelectric host crystal SrTiO(3), large higher order magnetoelectric coupling occurs between both glass systems. |
publisher |
AMER PHYSICAL SOC |
issn |
0031-9007 |
year published |
2008 |
volume |
101 |
issue |
16 |
digital object identifier (doi) |
10.1103/PhysRevLett.101.165704 |
web of science category |
Physics, Multidisciplinary |
subject category |
Physics |
unique article identifier |
WOS:000260141300039
|