Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Neutron Studies of Tb2Mo2O7



Jason S. Gardner, G. Ehlers, S. O. Diallo


We have used the new high energy resolution spectrometer (BaSis), at the Spallation Neutron Source in Oak Ridge, to conclusively prove the existence of a low energy mode at 0.34(1) meV in the spin glass Tb2mo2O7. This mode is reminiscent of the excitation observed in the ordered phases of both Tb2Ti2O7 and Tb2Sn2O7. The dynamical nature of the transition seen in the magnetization at ~25 K suggests that this frustrated magnet shows a dynamic crossover between hight-temperature phase of poorly correlated, quickly relaxing spins to a low-temperature regime with much slower, short ranged spin correlations extending no further than to the next nearest neighbor. Existing theories explain the spin glass transition in terms of a phase transition and order parameters, and assume the existence of a disntict spin glass phase. There is evidence for such a phase in Tb2Mo2Od7^.
Chinese Journal of Physics


spin glass, spin echo


, J. , Ehlers, G. and , S. (2012), Neutron Studies of Tb<sub>2</sub>Mo<sub>2</sub>O<sub>7</sub>, Chinese Journal of Physics, [online], (Accessed July 15, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created April 1, 2012, Updated February 19, 2017