Probing the ground state of Gd&lt;sub&gt;2&lt;/sub&gt;SN&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;7&lt;/sub&gt; through μSR measurements

Chapuis, Y.; Dalmas de Réotier, P.; Marin, C.; Yaouanc, A.; Forget, A.; Amato, A.; Baines, C.

doi:10.1016/j.physb.2008.11.195

Probing the ground state of Gd₂SN₂O₇ through μSR measurements

Chapuis Y, Dalmas de Réotier P, Marin C, Yaouanc A, Forget A, Amato A & Baines C

Citation

Chapuis, Y., Dalmas de Réotier, P., Marin, C., Yaouanc, A., Forget, A., Amato, A., & Baines, C. (2009). Probing the ground state of Gd₂SN₂O₇ through μSR measurements. Physica B: Condensed Matter, 404(5-7), 686-688. https://doi.org/10.1016/j.physb.2008.11.195

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:17341

We present μSR data recorded on a newly prepared sample of the geometrically frustrated magnetic material Gd₂Sn₂O₇. These data confirm previously published results and clearly show that there is a dynamical component in the ground state. This seems in contrast to the result of the linear spin-wave calculation of A.G. Del Maestro and M.J.P. Gingras which predicts the spin-waves to be gapped over the whole first Brillouin zone with a gap larger than about 1.0 K in temperature scale. The measured high-temperature paramagnetic spin dynamics is understood with a simple model. The conditions for observing a spontaneous magnetic field and a finite relaxation rate at low temperature are discussed in terms of the properties of a function which measures the density of fluctuation modes.

Details

Publication Type

Journal Article

Title

Probing the ground state of Gd₂SN₂O₇ through μSR measurements

Author(s)

Chapuis, Y.

Dalmas de Réotier, P.

Marin, C.

Yaouanc, A.

Forget, A.

Amato, A. (3501 Bulk-µSR)