Evaporation mechanisms of MgO in laser assisted atom probe tomography

Baishakhi Mazumder; Angela Vella; Bernard Déconihout; Tala'at Al-Kassab

doi:10.1016/j.ultramic.2010.11.017

Evaporation mechanisms of MgO in laser assisted atom probe tomography

Baishakhi Mazumder, Angela Vella, Bernard Déconihout, Tala'at Al-Kassab

Physical Sciences and Engineering

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

35 Scopus citations

Abstract

In this paper the field evaporation properties of bulk MgO and sandwiched MgO layers in Fe are compared using laser assisted Atom Probe Tomography. The comparison of flight time spectra gives an estimate of the evaporation times as a function of the wavelength and the laser energy. It is shown that the evaporation takes place in two steps on two different time scales in MgO. It is also shown that as long as the MgO layer is buried in Fe, the evaporation is dominated by the photon absorption in Fe layer at the tip apex. Eventually the evaporation process of MgO is discussed based on the difference between the bulk materials and the multilayer samples. © 2010 Elsevier B.V.

Original language	English (US)
Pages (from-to)	571-575
Number of pages	5
Journal	Ultramicroscopy
Volume	111
Issue number	6
DOIs	https://doi.org/10.1016/j.ultramic.2010.11.017
State	Published - May 2011

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We acknowledge the ESP Carnot, the TAPAS, the ANR and Cameca France for supporting our work. We thank L. Renaud for provided bulk MgO samples. We would like to thank Ryota Gemma for helping in MgO sample preparation.

ASJC Scopus subject areas

Instrumentation
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials

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10.1016/j.ultramic.2010.11.017

Cite this

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title = "Evaporation mechanisms of MgO in laser assisted atom probe tomography",

abstract = "In this paper the field evaporation properties of bulk MgO and sandwiched MgO layers in Fe are compared using laser assisted Atom Probe Tomography. The comparison of flight time spectra gives an estimate of the evaporation times as a function of the wavelength and the laser energy. It is shown that the evaporation takes place in two steps on two different time scales in MgO. It is also shown that as long as the MgO layer is buried in Fe, the evaporation is dominated by the photon absorption in Fe layer at the tip apex. Eventually the evaporation process of MgO is discussed based on the difference between the bulk materials and the multilayer samples. {\textcopyright} 2010 Elsevier B.V.",

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note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We acknowledge the ESP Carnot, the TAPAS, the ANR and Cameca France for supporting our work. We thank L. Renaud for provided bulk MgO samples. We would like to thank Ryota Gemma for helping in MgO sample preparation.",

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AU - Mazumder, Baishakhi

AU - Vella, Angela

AU - Déconihout, Bernard

AU - Al-Kassab, Tala'at

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We acknowledge the ESP Carnot, the TAPAS, the ANR and Cameca France for supporting our work. We thank L. Renaud for provided bulk MgO samples. We would like to thank Ryota Gemma for helping in MgO sample preparation.

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N2 - In this paper the field evaporation properties of bulk MgO and sandwiched MgO layers in Fe are compared using laser assisted Atom Probe Tomography. The comparison of flight time spectra gives an estimate of the evaporation times as a function of the wavelength and the laser energy. It is shown that the evaporation takes place in two steps on two different time scales in MgO. It is also shown that as long as the MgO layer is buried in Fe, the evaporation is dominated by the photon absorption in Fe layer at the tip apex. Eventually the evaporation process of MgO is discussed based on the difference between the bulk materials and the multilayer samples. © 2010 Elsevier B.V.

AB - In this paper the field evaporation properties of bulk MgO and sandwiched MgO layers in Fe are compared using laser assisted Atom Probe Tomography. The comparison of flight time spectra gives an estimate of the evaporation times as a function of the wavelength and the laser energy. It is shown that the evaporation takes place in two steps on two different time scales in MgO. It is also shown that as long as the MgO layer is buried in Fe, the evaporation is dominated by the photon absorption in Fe layer at the tip apex. Eventually the evaporation process of MgO is discussed based on the difference between the bulk materials and the multilayer samples. © 2010 Elsevier B.V.

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DO - 10.1016/j.ultramic.2010.11.017

M3 - Article

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SP - 571

EP - 575

JO - Ultramicroscopy

JF - Ultramicroscopy

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ER -

Evaporation mechanisms of MgO in laser assisted atom probe tomography

Abstract

Bibliographical note

ASJC Scopus subject areas

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