Magnetization reversal on different time-scales for ErFeO3 and NdFeO3 single crystals

Literature Information

Publication Date 2021-02-10
DOI 10.1039/D0CP06354A
Impact Factor 3.676
Authors

Mohanad H. Mohammed, Zhenxiang Cheng, Shixun Cao, Joseph Horvat


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Abstract

The dynamics of the magnetic moment reversal is studied for ErFeO3 and NdFeO3 single crystals. The reversal occurs at 41 and 5.1 K for ErFeO3 and NdFeO3, respectively, at a field of 300 Oe. The dynamics of the magnetization reversal process depends on the temperature at which the reversal occurs. The reversal is abrupt if the thermal energy is far higher than the energy of Zeeman splitting of the rare earth ion levels by internal fields, as observed for ErFeO3. A gradual magnetization reversal occurs for NdFeO3 over 64 s, when the thermal energy at the temperature of the reversal is well below the Zeeman splitting energy of Nd3+ spins. A mechanism for this gradual magnetization reversal is proposed in terms of the thermal re-population of Zeeman doublets of Nd3+ ions, the splitting energy of which continuously changes during the magnetization reversal.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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