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Spin-lattice coupling induced weak dynamical magnetism in EuTiO3 at high temperatures

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Guguchia Z., Keller H., Kremer R. K., Koehler J., Luetkens H., Goko T., Amato A., Bussmann-Holder A.,
Project Interplay between the superconductivity and magnetism in cuprate and Fe-based superconductors
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Original article (peer-reviewed)

Volume (Issue) 90(6)
Page(s) 064413
Title of proceedings PHYSICAL REVIEW B
DOI 10.1103/physrevb.90.064413


EuTiO3, which is a G-type antiferromagnet below T-N = 5.5 K, has some fascinating properties at high temperatures, suggesting that macroscopically hidden dynamically fluctuating weak magnetism exists at high temperatures. This conjecture is substantiated by magnetic field dependent magnetization measurements, which exhibit pronounced anomalies below 200 K becoming more distinctive with increasing magnetic field strength. Additional results from muon spin rotation experiments provide evidence for weak fluctuating bulk magnetism induced by spin-lattice coupling which is strongly supported in increasing magnetic field.