Exploring the Ground state of a frustrated rare earth compound from the family of SrLn2O4
SrLn2O4 is a family of compounds, where the distances between the first and second neighbor magnetic rare earth ions are very similar, making the structure geometrically frustrated. Strong single ion anisotropy is also present. The competition between these features gives these compounds very unusual magnetic properties such as co-existence of short and long-range magnetic order at the lowest temperatures. Here, we propose to study SrTm2O4 a member of this family using polarized neutron diffraction on D7 in order to explore the ground state. Tm3+ is a non-Kramers ion and a singlet ground state is expected, this is in agreement with previously published D7 data where no magnetic signal was found in the ab-plane. However, our initial diffused magnetic scattering data, heat capacity and susceptibility show the appearance of short range order.
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BHAT KADEMANE Abhijit; QUINTERO CASTRO Diana Lucia; SALAZAR MEJIA Catalina; SIEMENSMEYER Konrad; Rasmus Toft-Petersen; WILDES Andrew and YOKAICHIYA FABIANO. (2019). Exploring the Ground state of a frustrated rare earth compound from the family of SrLn2O4. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-505
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