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arXiv · 1901.10899

Spin freezing and Field induced transition in (Tb1-xEux)2Ti2O7 : A Magnetic Property study

Prajyoti Singh·Arkadeb Pal·Vinod K. Gangwar·Surajit Ghosh·Ranjan K. Singh·A. K. Ghosh·Sandip Chatterjee
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Abstract

The structural, magnetic and Raman effect have been investigated on (Tb1-xEux)2Ti2O7. From structural study it is clear that Eu substitutes the Tb in Tb2Ti2O7. Raman effect study indicates the existence of hardening due to phonon-phonon anharmonic interaction. From dc-magnetic measurement it is observed that in Eu rich samples contribution of dipolar interaction is significant. From ac magnetic measurement of (Tb1-xEux)2Ti2O7 a new single ion weak spin freezing ~ 33K at zero magnetic field is observed. On applying a field of 1T, all the compounds show a field induced transition (T*) which shifts towards higher temperature with increase of Eu content. This field induced transition corresponds to single moment saturation.

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Prajyoti Singh, Arkadeb Pal, Vinod K. Gangwar, Surajit Ghosh, Ranjan K. Singh, A. K. Ghosh, Sandip Chatterjee. 2019-01-30. Spin freezing and Field induced transition in (Tb1-xEux)2Ti2O7 : A Magnetic Property study. https://arxiv.org/abs/1901.10899

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