Abstract
The magnetic metal ions in the cubic pyrochlore Tb2Mo2O7 form an infinite three-dimensional network of corner-sharing tetrahedra with a very high potential for frustration in the presence of antiferromagnetism. We have performed neutron scattering measurements which show short-range spatial correlations that develop continuously with decreasing temperature, while the characteristic time scale for the fluctuating moments decreases dramatically below T(f) is similar to 25 K. Therefore, this pure material, which possesses frustration that is purely geometrical in origin, displays a spin-glass state at low temperatures.
Original language | English |
---|---|
Journal | Physical Review Letters |
Volume | 69 |
Issue number | 22 |
Pages (from-to) | 3244-3247 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 1992 |