Voltage-dependent domain evolution in La0.89Sr 0.11MnO3 single crystals by Piezoresponse Force Microscopy

Neeraj Panwar; Indrani Coondoo; A. L. Kholkin

doi:10.1016/j.ssc.2013.04.008

Voltage-dependent domain evolution in La_0.89Sr _0.11MnO₃ single crystals by Piezoresponse Force Microscopy

Neeraj Panwar^*
, Indrani Coondoo
, A. L. Kholkin

^*Corresponding author for this work

University of Aveiro

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

1 Citation (Scopus)

Abstract

Bias voltage dependent domain dynamics have been investigated on the surface of La_0.89Sr_0.11MnO₃ (LSMO-0.11) single crystals by Piezoresponse Force Microscopy (PFM). The created domain size increases with both the amplitude and duration of the bias voltage pulse. It is observed that domain growth takes place following an activated process wherein the domain wall interacts with the defects (e.g. oxygen vacancies) resulting from the high electric field under the PFM tip. Fractal analysis, based on the interaction of the domain boundary with the defects, provides the Hausdorff fractal dimension value ∼1.3, lower than that usually observed for solid-state crystalline ferroelectrics indicating a smaller correlation length value for LSMO-0.11 crystal. These studies reveal a clear potential of LSMO for new memory devices based on ferroelectric-like domain states in manganites.

Original language	English
Pages (from-to)	38-41
Number of pages	4
Journal	Solid State Communications
Volume	164
DOIs	https://doi.org/10.1016/j.ssc.2013.04.008
Publication status	Published - Jun 2013
Externally published	Yes

Keywords

A. Manganite
D. Ferroelectric domains
E. Piezoresponse Force Microscopy

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10.1016/j.ssc.2013.04.008

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title = "Voltage-dependent domain evolution in La0.89Sr 0.11MnO3 single crystals by Piezoresponse Force Microscopy",

abstract = "Bias voltage dependent domain dynamics have been investigated on the surface of La0.89Sr0.11MnO3 (LSMO-0.11) single crystals by Piezoresponse Force Microscopy (PFM). The created domain size increases with both the amplitude and duration of the bias voltage pulse. It is observed that domain growth takes place following an activated process wherein the domain wall interacts with the defects (e.g. oxygen vacancies) resulting from the high electric field under the PFM tip. Fractal analysis, based on the interaction of the domain boundary with the defects, provides the Hausdorff fractal dimension value ∼1.3, lower than that usually observed for solid-state crystalline ferroelectrics indicating a smaller correlation length value for LSMO-0.11 crystal. These studies reveal a clear potential of LSMO for new memory devices based on ferroelectric-like domain states in manganites.",

keywords = "A. Manganite, D. Ferroelectric domains, E. Piezoresponse Force Microscopy",

author = "Neeraj Panwar and Indrani Coondoo and Kholkin, \{A. L.\}",

year = "2013",

month = jun,

doi = "10.1016/j.ssc.2013.04.008",

language = "English",

volume = "164",

pages = "38--41",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Voltage-dependent domain evolution in La0.89Sr 0.11MnO3 single crystals by Piezoresponse Force Microscopy

AU - Panwar, Neeraj

AU - Coondoo, Indrani

AU - Kholkin, A. L.

PY - 2013/6

Y1 - 2013/6

N2 - Bias voltage dependent domain dynamics have been investigated on the surface of La0.89Sr0.11MnO3 (LSMO-0.11) single crystals by Piezoresponse Force Microscopy (PFM). The created domain size increases with both the amplitude and duration of the bias voltage pulse. It is observed that domain growth takes place following an activated process wherein the domain wall interacts with the defects (e.g. oxygen vacancies) resulting from the high electric field under the PFM tip. Fractal analysis, based on the interaction of the domain boundary with the defects, provides the Hausdorff fractal dimension value ∼1.3, lower than that usually observed for solid-state crystalline ferroelectrics indicating a smaller correlation length value for LSMO-0.11 crystal. These studies reveal a clear potential of LSMO for new memory devices based on ferroelectric-like domain states in manganites.

AB - Bias voltage dependent domain dynamics have been investigated on the surface of La0.89Sr0.11MnO3 (LSMO-0.11) single crystals by Piezoresponse Force Microscopy (PFM). The created domain size increases with both the amplitude and duration of the bias voltage pulse. It is observed that domain growth takes place following an activated process wherein the domain wall interacts with the defects (e.g. oxygen vacancies) resulting from the high electric field under the PFM tip. Fractal analysis, based on the interaction of the domain boundary with the defects, provides the Hausdorff fractal dimension value ∼1.3, lower than that usually observed for solid-state crystalline ferroelectrics indicating a smaller correlation length value for LSMO-0.11 crystal. These studies reveal a clear potential of LSMO for new memory devices based on ferroelectric-like domain states in manganites.

KW - A. Manganite

KW - D. Ferroelectric domains

KW - E. Piezoresponse Force Microscopy

UR - https://www.scopus.com/pages/publications/84877878278

U2 - 10.1016/j.ssc.2013.04.008

DO - 10.1016/j.ssc.2013.04.008

M3 - Article

AN - SCOPUS:84877878278

SN - 0038-1098

VL - 164

SP - 38

EP - 41

JO - Solid State Communications

JF - Solid State Communications

ER -

Voltage-dependent domain evolution in La_0.89Sr _0.11MnO₃ single crystals by Piezoresponse Force Microscopy

Abstract

Keywords

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