IDEAS home Printed from https://ideas.repec.org/a/nat/nature/v432y2004i7018d10.1038_nature03107.html
   My bibliography  Save this article

Unusual phase transitions in ferroelectric nanodisks and nanorods

Author

Listed:
  • Ivan I. Naumov

    (University of Arkansas)

  • L. Bellaiche

    (University of Arkansas)

  • Huaxiang Fu

    (University of Arkansas)

Abstract

Bulk ferroelectrics undergo structural phase transformations at low temperatures, giving multi-stable (that is, multiple-minimum) degenerate states with spontaneous polarization. Accessing these states by applying, and varying the direction of, an external electric field is a key principle for the operation of devices such as non-volatile ferroelectric random access memories1 (NFERAMs). Compared with bulk ferroelectrics, low-dimensional finite ferroelectric structures promise to increase the storage density of NFERAMs 10,000-fold2. But this anticipated benefit hinges on whether phase transitions and multi-stable states still exist in low-dimensional structures. Previous studies have suggested that phase transitions are impossible in one-dimensional systems3,4,5, and become increasingly less likely as dimensionality further decreases3,4,5,6. Here we perform ab initio studies of ferroelectric nanoscale disks and rods of technologically important Pb(Zr,Ti)O3 solid solutions, and demonstrate the existence of previously unknown phase transitions in zero-dimensional ferroelectric nanoparticles. The minimum diameter of the disks that display low-temperature structural bistability is determined to be 3.2 nm, enabling an ultimate NFERAM density of 60 × 1012 bits per square inch—that is, five orders of magnitude larger than those currently available7. Our results suggest an innovative use of ferroelectric nanostructures for data storage, and are of fundamental value for the theory of phase transition in systems of low dimensionality.

Suggested Citation

  • Ivan I. Naumov & L. Bellaiche & Huaxiang Fu, 2004. "Unusual phase transitions in ferroelectric nanodisks and nanorods," Nature, Nature, vol. 432(7018), pages 737-740, December.
  • Handle: RePEc:nat:nature:v:432:y:2004:i:7018:d:10.1038_nature03107
    DOI: 10.1038/nature03107
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/nature03107
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.

    File URL: https://libkey.io/10.1038/nature03107?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Longju Yu & Hong Jian Zhao & Peng Chen & Laurent Bellaiche & Yanming Ma, 2023. "The anti-symmetric and anisotropic symmetric exchange interactions between electric dipoles in hafnia," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. S. Prokhorenko & Y. Nahas & V. Govinden & Q. Zhang & N. Valanoor & L. Bellaiche, 2024. "Motion and teleportation of polar bubbles in low-dimensional ferroelectrics," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Chaehwa Jeong & Juhyeok Lee & Hyesung Jo & Jaewhan Oh & Hionsuck Baik & Kyoung-June Go & Junwoo Son & Si-Young Choi & Sergey Prosandeev & Laurent Bellaiche & Yongsoo Yang, 2024. "Revealing the three-dimensional arrangement of polar topology in nanoparticles," Nature Communications, Nature, vol. 15(1), pages 1-16, December.
    4. Mingqiang Li & Tiannan Yang & Pan Chen & Yongjun Wang & Ruixue Zhu & Xiaomei Li & Ruochen Shi & Heng-Jui Liu & Yen-Lin Huang & Xiumei Ma & Jingmin Zhang & Xuedong Bai & Long-Qing Chen & Ying-Hao Chu &, 2022. "Electric-field control of the nucleation and motion of isolated three-fold polar vertices," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    5. Jing Wang & Deshan Liang & Jing Ma & Yuanyuan Fan & Ji Ma & Hasnain Mehdi Jafri & Huayu Yang & Qinghua Zhang & Yue Wang & Changqing Guo & Shouzhe Dong & Di Liu & Xueyun Wang & Jiawang Hong & Nan Zhang, 2023. "Polar Solomon rings in ferroelectric nanocrystals," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    6. Wei Luo & Alireza Akbarzadeh & Yousra Nahas & Sergei Prokhorenko & Laurent Bellaiche, 2023. "Quantum criticality at cryogenic melting of polar bubble lattices," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    7. Yu-Tsun Shao & Sujit Das & Zijian Hong & Ruijuan Xu & Swathi Chandrika & Fernando Gómez-Ortiz & Pablo García-Fernández & Long-Qing Chen & Harold Y. Hwang & Javier Junquera & Lane W. Martin & Ramamoort, 2023. "Emergent chirality in a polar meron to skyrmion phase transition," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:nature:v:432:y:2004:i:7018:d:10.1038_nature03107. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.