Frustration and Glasslike Character in RIn 1- x Mn x O 3 (R = Tb, Dy, Gd).

Autor: Chen P; Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States., Holinsworth BS; Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States., O'Neal KR; Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States., Luo X; Rutgers Center for Emergent Materials and Department of Physics and Astronomy , Rutgers University , Piscataway , New Jersey 08854 , United States.; Laboratory for Pohang Emergent Materials and Department of Physics , Pohang University of Science and Technology , Pohang 790-784 , Korea., Topping CV; Condensed Matter Physics , University of Oxford, The Clarendon Laboratory , Parks Road , Oxford OX1 3PU , United Kingdom., Cheong SW; Rutgers Center for Emergent Materials and Department of Physics and Astronomy , Rutgers University , Piscataway , New Jersey 08854 , United States.; Laboratory for Pohang Emergent Materials and Department of Physics , Pohang University of Science and Technology , Pohang 790-784 , Korea., Singleton J; Condensed Matter Physics , University of Oxford, The Clarendon Laboratory , Parks Road , Oxford OX1 3PU , United Kingdom.; National High Magnetic Field Laboratory , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States., Choi ES; National High Magnetic Field Laboratory , Tallahassee , Florida 32310 , United States., Musfeldt JL; Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States.; Department of Physics , University of Tennessee , Knoxville , Tennessee 37996 , United States.
Jazyk: angličtina
Zdroj: Inorganic chemistry [Inorg Chem] 2018 Oct 15; Vol. 57 (20), pp. 12501-12508. Date of Electronic Publication: 2018 Sep 28.
DOI: 10.1021/acs.inorgchem.8b01467
Abstrakt: We bring together ac susceptibility and dc magnetization to uncover the rich magnetic field-temperature behavior of a series of rare earth indium oxides, RInO 3 (R = Tb, Dy, and Gd). The degree of frustration is much larger than expected, particularly in TbInO 3 , and the ground states are glasslike with antiferromagnetic tendencies. The activation energy for spin reorientation is low. Chemical substitution with Mn 3+ ions to form TbIn 1- x Mn x O 3 ( x ≤ 0.01) relieves much of the frustration that characterizes the parent compound and slightly enhances the short-range antiferromagnetic order. The phase diagrams developed from this work reveal the rich competition between spin orders and provide an opportunity to compare the dynamics in the RInO 3 and Mn-substituted systems. These structure-property relations may be useful for understanding magnetism in other geometrically frustrated multiferroics.
Databáze: MEDLINE
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