Effect of ultrafast thermal quenching on the transport and magnetotransport properties of Nd0.67Sr0.33MnO3

A. I. Mansour; K. H. Ziq; A. F. Salem; R. Hamam

doi:10.1007/s10948-013-2236-y

Effect of ultrafast thermal quenching on the transport and magnetotransport properties of Nd_0.67Sr_0.33MnO₃

A. I. Mansour^*, K. H. Ziq, A. F. Salem, R. Hamam

^*Corresponding author for this work

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

2 Scopus citations

Abstract

We report on the results of ultrafast quenching of Nd_1-x Sr _x MnO₃ (x=0.33) from 1200 C down to -196 C in a fraction of a second, at ambient pressure. Transport measurements showed a 27 K shift in the metal-insulator transition (MIT) temperature of the quenched sample compared to the as-grown sample. We found that ultrafast quenching significantly widens the temperature range of the magnetoresistance (MR) from few degrees to over 200 K. These changes are attributed to induced stress and change in grain size, which X-Ray analysis and SEM measurement have confirmed. X-Ray measurements confirms the presence of single phase in both the slowly-cooled and ultrafast-cooled samples.

Original language	English
Pages (from-to)	183-186
Number of pages	4
Journal	Journal of Superconductivity and Novel Magnetism
Volume	27
Issue number	1
DOIs	https://doi.org/10.1007/s10948-013-2236-y
State	Published - Jan 2014

Bibliographical note

Funding Information:
Acknowledgements This work was supported by the Deanship of Scientific Research at KFUPM under grant number JF101014. We would like to thank Professor N. Tabet for facilitating access and use of facilities at the surface science lab. We would like also to thank Dr. N. Maalej and Dr. A. Al-Jalal for their help in getting the GPIB controller and computer station.

Keywords

Magnetoresistance
Manganite
Ultrafast cooling

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1007/s10948-013-2236-y

Cite this

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title = "Effect of ultrafast thermal quenching on the transport and magnetotransport properties of Nd0.67Sr0.33MnO3",

abstract = "We report on the results of ultrafast quenching of Nd1-x Sr x MnO3 (x=0.33) from 1200 C down to -196 C in a fraction of a second, at ambient pressure. Transport measurements showed a 27 K shift in the metal-insulator transition (MIT) temperature of the quenched sample compared to the as-grown sample. We found that ultrafast quenching significantly widens the temperature range of the magnetoresistance (MR) from few degrees to over 200 K. These changes are attributed to induced stress and change in grain size, which X-Ray analysis and SEM measurement have confirmed. X-Ray measurements confirms the presence of single phase in both the slowly-cooled and ultrafast-cooled samples.",

keywords = "Magnetoresistance, Manganite, Ultrafast cooling",

author = "Mansour, {A. I.} and Ziq, {K. H.} and Salem, {A. F.} and R. Hamam",

note = "Funding Information: Acknowledgements This work was supported by the Deanship of Scientific Research at KFUPM under grant number JF101014. We would like to thank Professor N. Tabet for facilitating access and use of facilities at the surface science lab. We would like also to thank Dr. N. Maalej and Dr. A. Al-Jalal for their help in getting the GPIB controller and computer station.",

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AU - Mansour, A. I.

AU - Ziq, K. H.

AU - Salem, A. F.

AU - Hamam, R.

N1 - Funding Information: Acknowledgements This work was supported by the Deanship of Scientific Research at KFUPM under grant number JF101014. We would like to thank Professor N. Tabet for facilitating access and use of facilities at the surface science lab. We would like also to thank Dr. N. Maalej and Dr. A. Al-Jalal for their help in getting the GPIB controller and computer station.

PY - 2014/1

Y1 - 2014/1

N2 - We report on the results of ultrafast quenching of Nd1-x Sr x MnO3 (x=0.33) from 1200 C down to -196 C in a fraction of a second, at ambient pressure. Transport measurements showed a 27 K shift in the metal-insulator transition (MIT) temperature of the quenched sample compared to the as-grown sample. We found that ultrafast quenching significantly widens the temperature range of the magnetoresistance (MR) from few degrees to over 200 K. These changes are attributed to induced stress and change in grain size, which X-Ray analysis and SEM measurement have confirmed. X-Ray measurements confirms the presence of single phase in both the slowly-cooled and ultrafast-cooled samples.

AB - We report on the results of ultrafast quenching of Nd1-x Sr x MnO3 (x=0.33) from 1200 C down to -196 C in a fraction of a second, at ambient pressure. Transport measurements showed a 27 K shift in the metal-insulator transition (MIT) temperature of the quenched sample compared to the as-grown sample. We found that ultrafast quenching significantly widens the temperature range of the magnetoresistance (MR) from few degrees to over 200 K. These changes are attributed to induced stress and change in grain size, which X-Ray analysis and SEM measurement have confirmed. X-Ray measurements confirms the presence of single phase in both the slowly-cooled and ultrafast-cooled samples.

KW - Magnetoresistance

KW - Manganite

KW - Ultrafast cooling

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