Paramagnetism in Pb(Zr,Ti)O3 nanotube arrays at low temperatures

Sang Don Bu; Jin Kyu Han; Yong Chan Choi; Sun A. Yang

doi:10.3938/jkps.60.1097

Paramagnetism in Pb(Zr,Ti)O₃ nanotube arrays at low temperatures

Sang Don Bu
, Jin Kyu Han
, Yong Chan Choi
, Sun A. Yang

Division of Energy Techonology

Jeonbuk National University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The nano-ferroelectrics community has taken a keen interest over the past 65 years in achieving the toroidal (circular) ordering of electric domains. Understanding the behavior of vortex ferroelectric domain states remains an unresolved issue because electric polarization density interactions contribute significantly to large extrinsic effects if the strain, charge and size are not tightly controlled. Here, we present an experimental clue to toroidal ordering at low temperatures, that is, the paramagnetism in highly-ordered arrays of ferroelectric Pb(Zr,Ti)O₃ nanotubes composed of nanometer-sized perovskite crystallites. The critical temperature for the phase transition from a normal ferroelectric polar state to toroidal ordering is 70 K.

Original language	English
Pages (from-to)	1097-1101
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	60
Issue number	7
DOIs	https://doi.org/10.3938/jkps.60.1097
State	Published - 2012

Bibliographical note

Funding Information:
This study was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (numbers 2011-0000258 and 2011-0031400).

Keywords

Ferroelectric random access memory
Ferroelectrics
Paramagnetism
Pb(Zr,Ti)O nanotube arrays

Access to Document

10.3938/jkps.60.1097

Cite this

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title = "Paramagnetism in Pb(Zr,Ti)O3 nanotube arrays at low temperatures",

abstract = "The nano-ferroelectrics community has taken a keen interest over the past 65 years in achieving the toroidal (circular) ordering of electric domains. Understanding the behavior of vortex ferroelectric domain states remains an unresolved issue because electric polarization density interactions contribute significantly to large extrinsic effects if the strain, charge and size are not tightly controlled. Here, we present an experimental clue to toroidal ordering at low temperatures, that is, the paramagnetism in highly-ordered arrays of ferroelectric Pb(Zr,Ti)O3 nanotubes composed of nanometer-sized perovskite crystallites. The critical temperature for the phase transition from a normal ferroelectric polar state to toroidal ordering is 70 K.",

keywords = "Ferroelectric random access memory, Ferroelectrics, Paramagnetism, Pb(Zr,Ti)O nanotube arrays",

author = "Bu, \{Sang Don\} and Han, \{Jin Kyu\} and Choi, \{Yong Chan\} and Yang, \{Sun A.\}",

note = "Funding Information: This study was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (numbers 2011-0000258 and 2011-0031400).",

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doi = "10.3938/jkps.60.1097",

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AU - Bu, Sang Don

AU - Han, Jin Kyu

AU - Choi, Yong Chan

AU - Yang, Sun A.

N1 - Funding Information: This study was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (numbers 2011-0000258 and 2011-0031400).

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AB - The nano-ferroelectrics community has taken a keen interest over the past 65 years in achieving the toroidal (circular) ordering of electric domains. Understanding the behavior of vortex ferroelectric domain states remains an unresolved issue because electric polarization density interactions contribute significantly to large extrinsic effects if the strain, charge and size are not tightly controlled. Here, we present an experimental clue to toroidal ordering at low temperatures, that is, the paramagnetism in highly-ordered arrays of ferroelectric Pb(Zr,Ti)O3 nanotubes composed of nanometer-sized perovskite crystallites. The critical temperature for the phase transition from a normal ferroelectric polar state to toroidal ordering is 70 K.

KW - Ferroelectric random access memory

KW - Ferroelectrics

KW - Paramagnetism

KW - Pb(Zr,Ti)O nanotube arrays

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