Dynamic scaling of hysteresis loop areas in ferroelectric $KH_2PO_4$ crstal = 강유전성 $KH_2PO_4$ 결정에서의 이력곡선면적의 dynamic scaling

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We have observed dynamic scaling behaviour of hysteresis loop areas in KDP crystals as a function of applied field amplitude $E_0$ and frequency Ω. Our results exhibit a uniform power law scaling behavior $A~E_0^{1.55}ㆍΩ^{0.20}$ in the region of low $E_0$ and Ω, compatible with the Steinmetz law and the result of Hashimoto et al. This result shows the possibility that both ferroelectric and ferromagnetic bulk systems may have the same universal behavior and their real structure such as domains, anisotropy, defects it etc. which all theories have not considered may have significant effects on dynamics of their hysteresis loop switching. And it clearly shows a distinctive difference between thin films and bulk systems.
Advisors
Kim, Jong-Jean김종진
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
1998
Identifier
135321/325007 / 000963059
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 1998.2, [ [31] p. ]

Keywords

이력곡선; 강유전체; KDP; Ferroelectrics; Hysteresis; Dynamic scaling

URI
http://hdl.handle.net/10203/48452
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=135321&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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