Journal
SOLID STATE COMMUNICATIONS
Volume 211, Issue -, Pages 47-51Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2015.03.013
Keywords
Rare earth; Spin reorientation transition; AC susceptibility; Terahertz time domain
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Funding
- National Natural Science Foundation of China (NSFC) [51372149, 50932003, 11174195, 11274221]
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The spin reorientation transition in single crystal NdFeO3 is studied using AC magnetic susceptibility, hysteresis loops, and polarized terahertz (THz) time domain spectroscopy measurements. Different frequency dependence behaviors of AC susceptibility reflect that the dynamic response of magnetization inside the spin reorientation region differs from the phase outside the transition region. The magnetization hysteresis loops at different temperatures reveal that domains formed during the spin reorientation process, which coincides with the abrupt increase of AC magnetic susceptibility during the transition. In addition, temperature dependent THz wave excitation of quasi-antiferromagnetic mode indicates the process of spin reorientation as a continuous rotation of Fe3+ spins rather than a mixed phase of Gamma(4) and Gamma(2). (C) 2015 Elsevier Ltd. All rights reserved.
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