Towards the limit of ferroelectric nanostructures: Switchable sub-10 nm nanoisland arrays

Youngsuk Kim; Yunseok Kim; Hee Han; Stephen Jesse; Seung Hyun; Woo Lee; Sergei V. Kalinin; Jin Kon Kim

doi:10.1039/c3tc30971a

Towards the limit of ferroelectric nanostructures: Switchable sub-10 nm nanoisland arrays

Youngsuk Kim, Yunseok Kim, Hee Han, Stephen Jesse, Seung Hyun, Woo Lee, Sergei V. Kalinin, Jin Kon Kim

Center for Nanophase Matls Sciences

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

17 Scopus citations

Abstract

Ultrahigh density arrays of ferroelectric PbTiO₃ (PTO) nanoislands with various feature sizes were epitaxially grown by utilizing block copolymer micelles. Piezoresponse and ferroelectric properties were clearly observed in the PTO nanoislands by band excitation piezoresponse force microscopy. In particular, PTO nanoislands were fully switchable even with a volume as small as 79 nm³. Accordingly, it is expected that the volume of the switchable ferroelectric nanoislands can be further decreased. The obtained results show that an areal density of over 10 Tb in^-2 for the ferroelectric memory devices would be possible.

Original language	English
Pages (from-to)	5299-5302
Number of pages	4
Journal	Journal of Materials Chemistry C
Volume	1
Issue number	34
DOIs	https://doi.org/10.1039/c3tc30971a
State	Published - Sep 14 2013

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title = "Towards the limit of ferroelectric nanostructures: Switchable sub-10 nm nanoisland arrays",

abstract = "Ultrahigh density arrays of ferroelectric PbTiO3 (PTO) nanoislands with various feature sizes were epitaxially grown by utilizing block copolymer micelles. Piezoresponse and ferroelectric properties were clearly observed in the PTO nanoislands by band excitation piezoresponse force microscopy. In particular, PTO nanoislands were fully switchable even with a volume as small as 79 nm3. Accordingly, it is expected that the volume of the switchable ferroelectric nanoislands can be further decreased. The obtained results show that an areal density of over 10 Tb in-2 for the ferroelectric memory devices would be possible.",

author = "Youngsuk Kim and Yunseok Kim and Hee Han and Stephen Jesse and Seung Hyun and Woo Lee and Kalinin, \{Sergei V.\} and Kim, \{Jin Kon\}",

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T1 - Towards the limit of ferroelectric nanostructures

T2 - Switchable sub-10 nm nanoisland arrays

AU - Kim, Youngsuk

AU - Kim, Yunseok

AU - Han, Hee

AU - Jesse, Stephen

AU - Hyun, Seung

AU - Lee, Woo

AU - Kalinin, Sergei V.

AU - Kim, Jin Kon

PY - 2013/9/14

Y1 - 2013/9/14

N2 - Ultrahigh density arrays of ferroelectric PbTiO3 (PTO) nanoislands with various feature sizes were epitaxially grown by utilizing block copolymer micelles. Piezoresponse and ferroelectric properties were clearly observed in the PTO nanoislands by band excitation piezoresponse force microscopy. In particular, PTO nanoislands were fully switchable even with a volume as small as 79 nm3. Accordingly, it is expected that the volume of the switchable ferroelectric nanoislands can be further decreased. The obtained results show that an areal density of over 10 Tb in-2 for the ferroelectric memory devices would be possible.

AB - Ultrahigh density arrays of ferroelectric PbTiO3 (PTO) nanoislands with various feature sizes were epitaxially grown by utilizing block copolymer micelles. Piezoresponse and ferroelectric properties were clearly observed in the PTO nanoislands by band excitation piezoresponse force microscopy. In particular, PTO nanoislands were fully switchable even with a volume as small as 79 nm3. Accordingly, it is expected that the volume of the switchable ferroelectric nanoislands can be further decreased. The obtained results show that an areal density of over 10 Tb in-2 for the ferroelectric memory devices would be possible.

UR - https://www.scopus.com/pages/publications/84883221267

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DO - 10.1039/c3tc30971a

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VL - 1

SP - 5299

EP - 5302

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 34

ER -

Towards the limit of ferroelectric nanostructures: Switchable sub-10 nm nanoisland arrays

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