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Updated: May 30, 2026

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties
Published on: August 15, 2015
High-pressure hydrothermal crystal growth and multiferroic properties of a perovskite YMnO3
Shintaro Ishiwata1, Yusuke Tokunaga, Yasujiro Taguchi
1Department of Applied Physics and Quantum-Phase Electronics Center, University of Tokyo, Japan. ishiwata@ap.t.u-tokyo.ac.jp
Abstract:
Orthorhombic perovskites RMnO(3) are representative of spin-driven ferroelectrics. When the radius of the rare-earth ion R is smaller than that of Dy, for instance in YMnO(3), the orthorhombic phase becomes metastable at ambient pressure, which impedes the crystal growth; thus, the detailed magnetic and multiferroic properties of the metastable phase have not been characterized. In this work, we successfully obtained single crystals of orthorhombic YMnO(3) using quasi-hydrothermal conditions under a high pressure of 5.5 GPa. Magnetic and dielectric measurements under magnetic fields revealed that the magnetic ground state is the commensurate E-type antiferromagnetic, while a cycloidal spin phase likely coexists in the intermediate temperature range, which enhances the magnetoelectric response to external fields.
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