Specific conductivity of a ferroelectric domain wall

Pankaj Sharma; Anna N. Morozovska; Eugene A. Eliseev; Qi Zhang; Daniel Sando; Nagarajan Valanoor; Jan Seidel

doi:10.1021/acsaelm.2c00261

Specific conductivity of a ferroelectric domain wall

Pankaj Sharma^*, Anna N. Morozovska, Eugene A. Eliseev, Qi Zhang, Daniel Sando, Nagarajan Valanoor^*, Jan Seidel^*

^*Corresponding author for this work

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

14 Citations (Scopus)

Abstract

The small size of ferroelectric domain walls (FEDWs) presents a significant challenge for the accurate determination of their electrical properties. Quantification of their specific conductivity (σ), however, is essential for their implementation as functional elements and interconnects in nanoelectronic circuits. Here, we propose a scanning-probe-based method to directly determine the specific conductivity of a single FEDW in an insulating ferroelectric. The method eliminates complications due to size, current magnitude, and non-Ohmic electrical contacts. Transmission line spectroscopy measurements coupled with mean-field theory are able to provide quantitative insight into domain wall conductivity, shown here for prototypical 71° FEDWs in BiFeO₃. These results provide significant insight into FEDWs, bringing applications in future nanoelectronic devices a step closer.

[Graphic presents]

Original language	English
Pages (from-to)	2739-2746
Number of pages	8
Journal	ACS Applied Electronic Materials
Volume	4
Issue number	6
DOIs	https://doi.org/10.1021/acsaelm.2c00261
Publication status	Published - 28 Jun 2022
Externally published	Yes

Keywords

ferroelectrics
domain walls
scanning probe microscopy
specific conductivity
transmission line spectroscopy

Access to Document

10.1021/acsaelm.2c00261

Cite this

@article{6f5332551da94ec9977361e9f78d00ff,

title = "Specific conductivity of a ferroelectric domain wall",

abstract = "The small size of ferroelectric domain walls (FEDWs) presents a significant challenge for the accurate determination of their electrical properties. Quantification of their specific conductivity (σ), however, is essential for their implementation as functional elements and interconnects in nanoelectronic circuits. Here, we propose a scanning-probe-based method to directly determine the specific conductivity of a single FEDW in an insulating ferroelectric. The method eliminates complications due to size, current magnitude, and non-Ohmic electrical contacts. Transmission line spectroscopy measurements coupled with mean-field theory are able to provide quantitative insight into domain wall conductivity, shown here for prototypical 71° FEDWs in BiFeO3. These results provide significant insight into FEDWs, bringing applications in future nanoelectronic devices a step closer.[Graphic presents]",

keywords = "ferroelectrics, domain walls, scanning probe microscopy, specific conductivity, transmission line spectroscopy",

author = "Pankaj Sharma and Morozovska, \{Anna N.\} and Eliseev, \{Eugene A.\} and Qi Zhang and Daniel Sando and Nagarajan Valanoor and Jan Seidel",

year = "2022",

month = jun,

day = "28",

doi = "10.1021/acsaelm.2c00261",

language = "English",

volume = "4",

pages = "2739--2746",

journal = "ACS Applied Electronic Materials",

issn = "2637-6113",

publisher = "American Chemical Society",

number = "6",

}

TY - JOUR

T1 - Specific conductivity of a ferroelectric domain wall

AU - Sharma, Pankaj

AU - Morozovska, Anna N.

AU - Eliseev, Eugene A.

AU - Zhang, Qi

AU - Sando, Daniel

AU - Valanoor, Nagarajan

AU - Seidel, Jan

PY - 2022/6/28

Y1 - 2022/6/28

N2 - The small size of ferroelectric domain walls (FEDWs) presents a significant challenge for the accurate determination of their electrical properties. Quantification of their specific conductivity (σ), however, is essential for their implementation as functional elements and interconnects in nanoelectronic circuits. Here, we propose a scanning-probe-based method to directly determine the specific conductivity of a single FEDW in an insulating ferroelectric. The method eliminates complications due to size, current magnitude, and non-Ohmic electrical contacts. Transmission line spectroscopy measurements coupled with mean-field theory are able to provide quantitative insight into domain wall conductivity, shown here for prototypical 71° FEDWs in BiFeO3. These results provide significant insight into FEDWs, bringing applications in future nanoelectronic devices a step closer.[Graphic presents]

AB - The small size of ferroelectric domain walls (FEDWs) presents a significant challenge for the accurate determination of their electrical properties. Quantification of their specific conductivity (σ), however, is essential for their implementation as functional elements and interconnects in nanoelectronic circuits. Here, we propose a scanning-probe-based method to directly determine the specific conductivity of a single FEDW in an insulating ferroelectric. The method eliminates complications due to size, current magnitude, and non-Ohmic electrical contacts. Transmission line spectroscopy measurements coupled with mean-field theory are able to provide quantitative insight into domain wall conductivity, shown here for prototypical 71° FEDWs in BiFeO3. These results provide significant insight into FEDWs, bringing applications in future nanoelectronic devices a step closer.[Graphic presents]

KW - ferroelectrics

KW - domain walls

KW - scanning probe microscopy

KW - specific conductivity

KW - transmission line spectroscopy

UR - https://www.scopus.com/pages/publications/85131884744

UR - http://purl.org/au-research/grants/arc/CE170100039

U2 - 10.1021/acsaelm.2c00261

DO - 10.1021/acsaelm.2c00261

M3 - Article

SN - 2637-6113

VL - 4

SP - 2739

EP - 2746

JO - ACS Applied Electronic Materials

JF - ACS Applied Electronic Materials

IS - 6

ER -

Specific conductivity of a ferroelectric domain wall

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this