Neutron scattering investigations of the partially ordered pyrochlore Tb2Sn2O7

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Journal of Physics: Condensed Matter

OSTI ID:968616

Gardner, Jason ^[1]; Ehlers, Georg ^[2]; Rule, K ^[3]; Qiu, Y. ^[4]; Moskvin, E ^[5]; Kiefer, K ^[3]; Gerischer, S ^[3]

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1. Indiana University
2. ORNL
3. Helmholtz-Zentrum Berlin
4. National Institute of Standards and Technology (NIST)
5. Petersburg Nuclear Physics Institute, Gatchina, Russia

Neutron scattering measurements have been performed on polycrystalline Tb{sub 2}Sn{sub 2}O{sub 7} at temperatures above and below that of the phase transition, T{sub N} = 0.87 K, to investigate further the spin dynamics in the magnetically ordered state. In particular, new neutron spin echo results are presented showing a dependence on Q in the dynamics. We show evidence of the coexistence of static ferromagnetism and dynamically fluctuating spins down to 30 mK and we make a comparison of this partially ordered system to the spin liquid Tb{sub 2}Sn{sub 2}O{sub 7}.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 968616
• Journal Information: Journal of Physics: Condensed Matter, Vol. 21, Issue 48
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FERROMAGNETISM
NEUTRONS
PYROCHLORE
SCATTERING
SPIN
SPIN ECHO