Passivating effect of Si(111)-(√3x√3)Ag and Si 3N4/Si(111)-(8x8) buffer layers

K. Eguchi; Y. Takagi; T. Nakagawa; T. Yokoyama

doi:10.1088/1742-6596/430/1/012129

Passivating effect of Si(111)-(√3x√3)Ag and Si ₃N₄/Si(111)-(8x8) buffer layers

K. Eguchi, Y. Takagi, T. Nakagawa, T. Yokoyama

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

We have investigated the magnetic properties of iron deposited on Si(111)-(7x7), Si(111)-(√3x√3)Ag and Si₃N ₄/Si(111)-(8x8) by x-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements. By choosing the surface, it is possible to control the interaction of Fe atoms with Si atoms and to govern the spin magnetic moment of iron. The magnetic moment of 1.6 ML-Fe is almost lost on the clean surface, while that of 1.6ML-Fe on the Si₃N₄ surface remains completely. About a half of the magnetic moment of bcc-Fe is obtained by depositing Fe on the Ag modified Si(111) surface. In addition, it is found that the magnetic moment of Fe on the Ag modified Si(111) surface is lost easily by annealing at 500 K. On the other hand, that of Fe on the Si ₃N₄ surface is sufficiently kept even when the sample is annealed at 500 K.

Original language	English
Article number	012129
Journal	Journal of Physics: Conference Series
Volume	430
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/430/1/012129
Publication status	Published - 2013
Externally published	Yes
Event	15th International Conference on X-Ray Absorption Fine Structure, XAFS 2012 - Beijing, China Duration: Jul 22 2012 → Jul 28 2012

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1088/1742-6596/430/1/012129

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@article{63817137ff744d6e98abf2983a096637,

title = "Passivating effect of Si(111)-(√3x√3)Ag and Si 3N4/Si(111)-(8x8) buffer layers",

abstract = "We have investigated the magnetic properties of iron deposited on Si(111)-(7x7), Si(111)-(√3x√3)Ag and Si3N 4/Si(111)-(8x8) by x-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements. By choosing the surface, it is possible to control the interaction of Fe atoms with Si atoms and to govern the spin magnetic moment of iron. The magnetic moment of 1.6 ML-Fe is almost lost on the clean surface, while that of 1.6ML-Fe on the Si3N4 surface remains completely. About a half of the magnetic moment of bcc-Fe is obtained by depositing Fe on the Ag modified Si(111) surface. In addition, it is found that the magnetic moment of Fe on the Ag modified Si(111) surface is lost easily by annealing at 500 K. On the other hand, that of Fe on the Si 3N4 surface is sufficiently kept even when the sample is annealed at 500 K.",

author = "K. Eguchi and Y. Takagi and T. Nakagawa and T. Yokoyama",

year = "2013",

doi = "10.1088/1742-6596/430/1/012129",

language = "English",

volume = "430",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

note = "15th International Conference on X-Ray Absorption Fine Structure, XAFS 2012 ; Conference date: 22-07-2012 Through 28-07-2012",

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TY - JOUR

T1 - Passivating effect of Si(111)-(√3x√3)Ag and Si 3N4/Si(111)-(8x8) buffer layers

AU - Eguchi, K.

AU - Takagi, Y.

AU - Nakagawa, T.

AU - Yokoyama, T.

PY - 2013

Y1 - 2013

N2 - We have investigated the magnetic properties of iron deposited on Si(111)-(7x7), Si(111)-(√3x√3)Ag and Si3N 4/Si(111)-(8x8) by x-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements. By choosing the surface, it is possible to control the interaction of Fe atoms with Si atoms and to govern the spin magnetic moment of iron. The magnetic moment of 1.6 ML-Fe is almost lost on the clean surface, while that of 1.6ML-Fe on the Si3N4 surface remains completely. About a half of the magnetic moment of bcc-Fe is obtained by depositing Fe on the Ag modified Si(111) surface. In addition, it is found that the magnetic moment of Fe on the Ag modified Si(111) surface is lost easily by annealing at 500 K. On the other hand, that of Fe on the Si 3N4 surface is sufficiently kept even when the sample is annealed at 500 K.

AB - We have investigated the magnetic properties of iron deposited on Si(111)-(7x7), Si(111)-(√3x√3)Ag and Si3N 4/Si(111)-(8x8) by x-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements. By choosing the surface, it is possible to control the interaction of Fe atoms with Si atoms and to govern the spin magnetic moment of iron. The magnetic moment of 1.6 ML-Fe is almost lost on the clean surface, while that of 1.6ML-Fe on the Si3N4 surface remains completely. About a half of the magnetic moment of bcc-Fe is obtained by depositing Fe on the Ag modified Si(111) surface. In addition, it is found that the magnetic moment of Fe on the Ag modified Si(111) surface is lost easily by annealing at 500 K. On the other hand, that of Fe on the Si 3N4 surface is sufficiently kept even when the sample is annealed at 500 K.

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U2 - 10.1088/1742-6596/430/1/012129

DO - 10.1088/1742-6596/430/1/012129

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AN - SCOPUS:84877320788

SN - 1742-6588

VL - 430

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012129

T2 - 15th International Conference on X-Ray Absorption Fine Structure, XAFS 2012

Y2 - 22 July 2012 through 28 July 2012

ER -

Passivating effect of Si(111)-(√3x√3)Ag and Si ₃N₄/Si(111)-(8x8) buffer layers

Abstract

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