Electron ionization and spin polarization control of Fe atom adsorbed graphene irradiated by a femtosecond laser

Dong Yu, Lan Jiang, Feng Wang, Xin Li, Liangti Qu, Yongfeng Lu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We investigate the structural properties and ionized spin electrons of an Fe-graphene system, in which the time-dependent density functional theory (TDDFT) within the generalized gradient approximation is used. The electron dynamics, including electron ionization and ionized electron spin polarization, is described for Fe atom adsorbed graphene under femtosecond laser irradiation. The theoretical results show that the electron ionization and ionized electron spin polarization are sensitive to the laser parameters, such as the incident angle and the peak intensity. The spin polarization presents the maximum value under certain laser parameters, which may be used as a source of spin-polarized electrons.

Original languageEnglish (US)
Pages (from-to)2615-2618
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume379
Issue number40-41
DOIs
StatePublished - Oct 23 2015

Fingerprint

electron spin
adatoms
graphene
ionization
polarization
lasers
electrons
density functional theory
gradients
irradiation
approximation

Keywords

  • Femtosecond laser
  • First-principle
  • Graphene
  • Spin polarization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Electron ionization and spin polarization control of Fe atom adsorbed graphene irradiated by a femtosecond laser. / Yu, Dong; Jiang, Lan; Wang, Feng; Li, Xin; Qu, Liangti; Lu, Yongfeng.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 379, No. 40-41, 23.10.2015, p. 2615-2618.

Research output: Contribution to journalArticle

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AU - Jiang, Lan

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AU - Li, Xin

AU - Qu, Liangti

AU - Lu, Yongfeng

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AB - We investigate the structural properties and ionized spin electrons of an Fe-graphene system, in which the time-dependent density functional theory (TDDFT) within the generalized gradient approximation is used. The electron dynamics, including electron ionization and ionized electron spin polarization, is described for Fe atom adsorbed graphene under femtosecond laser irradiation. The theoretical results show that the electron ionization and ionized electron spin polarization are sensitive to the laser parameters, such as the incident angle and the peak intensity. The spin polarization presents the maximum value under certain laser parameters, which may be used as a source of spin-polarized electrons.

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KW - First-principle

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KW - Spin polarization

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