Spin-polarized photoemission study of the Fe 3<i>s</i>multiplet

Xu, Z.; Liu, Y.; Johnson, P. D.; Itchkawitz, B. S.; Randall, Kevin J.; Feldhaus, J.; Bradshaw, A. M.

doi:10.1103/physrevb.51.7912

Cited by 25 publications

(20 citation statements)

References 28 publications

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“…In general, the majority peak is broader than the minority peak due to solid state effect [26]. The physical appearance of the majority peak indicates that the peak is consisting of two peaks, and could be resolved by curve fitting method using CASA XPS software (Fig.…”

Section: Spectroscopic Properties Of Al Doped Hexaferritementioning

confidence: 99%

XPS study on the correlation of magnetic properties and site occupancy of Al doped SrFe12O19

Sahu¹,

Mohanta²,

Pramanik³

2012

Journal of Alloys and Compounds

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Section: Spectroscopic Properties Of Al Doped Hexaferritementioning

confidence: 99%

XPS study on the correlation of magnetic properties and site occupancy of Al doped SrFe12O19

Sahu¹,

Mohanta²,

Pramanik³

2012

Journal of Alloys and Compounds

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“…This spectral weight may be attributed to the LS state, whereas its intensity is weaker than the LS state observed in the 3s majority-spin spectrum for bcc Fe. [31][32][33][34][35][36][37] The spin polarizations corresponding to the SRPES spectra in Figs. 1͑a͒ and 1͑b͒ are shown in Figs.…”

Section: Methodsmentioning

confidence: 99%

“…The 3s photoemission spectroscopy of 3d transition metals has been extensively studied in terms of its applicability to estimation of the local spin moment. [25][26][27][28][29][30][31][32][33][34][35][36][37][38] The exchange splitting into high-spin ͑HS͒ ͑S +1/2͒ and low-spin ͑LS͒ ͑S −1/2͒ final states ͑where S represents the total spin in an atom͒ in the 3s photoemission spectrum is caused by the exchange interaction between the total spin in the valence band and core-level spin left in the final state. According to the Van Vleck theorem, 25 the energy separation of these two final states is expressed as J͑S +1/2͒, which includes the total spin.…”

Section: Introductionmentioning

confidence: 99%

Magnetism of Fe films grown on Co(100) studied by spin-resolved Fe3sphotoemission

et al. 2006

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The magnetic properties of fcc Fe films grown on fcc Co͑100͒ have been studied by means of spin-resolved Fe 3s core-level photoemission and characteristics of the measured spin-resolved 3s spectra for fcc Fe films have been investigated. The spin-resolved 3s spectra measured on 3.9 and 6.6 monolayer ͑ML͒ fcc Fe films are similar in spectral shape. The 3s majority-spin spectra for these fcc Fe films show weaker intensity on the high-binding-energy side than the spectrum previously reported for bulk bcc Fe. The spin-resolved 3s spectra for the fcc Fe films are analyzed by cluster model calculation consisting of four Fe atoms. In the analysis by the cluster model calculation, effects of the interatomic configuration interaction on the spin-resolved 3s spectra for fcc Fe films are discussed. Itinerancy of 3d electrons is found to be an important factor in describing the spin-resolved Fe 3s spectra. The z spin momentum estimated by the cluster calculation indicates that both the Fe films are in a high-spin ferromagnetic state near the surface. On the other hand, the spin polarization at the background in the spectrum for the 6.6 ML Fe film is much smaller than that for the 3.9 ML film. This variation of the background spin polarization indicates that the magnetic moment averaged up to deeper layers of Fe film is suppressed in the 6.6 ML film.

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“…The latter should be taken into account when applying the inelastic background procedure to analyze the energy spectra of signal electrons in the vicinity of the characteristic peaks in spinresolved photoemission experiments. 39,40 …”

Section: ͑34͒mentioning

confidence: 99%

Mean escape depth of signal photoelectrons ejected from solids by polarized x rays

Tilinin

1996

Phys. Rev. B

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Quick development of synchrotron radiation facilities and prospective applications of photon beams of a variable energy in spectroscopy of solids and interfaces prompts further studies of photoemission induced by polarized soft x rays. One of the most important characteristics in surface sensitive spectroscopies is the mean escape depth of signal electrons leaving a sample without being scattered inelastically. In this article a simple analytical expression for the average escape depth of photoelectrons ejected by polarized x rays is found by means of the depth distribution function obtained by solving the transport equation. The dependence of the escape depth on the type and the degree of photon polarization is predicted. This effect is due to the anisotropy of the initial angular distribution of photoelectrons and elastic scattering they suffer on their way out of the target. The variation of the mean escape depth with the type and the degree of polarization as well as with the emission direction from the target is quite well pronounced and may reach up to 100% with respect to the value determined by the inelastic mean free path in the usual x-ray photoelectron spectroscopy formalism. The dependence of the escape depth on the azimuthal and polar emission angles is studied in detail. In the special case of unpolarized x rays the expression for the average escape depth reduces to the result found earlier.

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Spin-polarized photoemission study of the Fe 3smultiplet

Cited by 25 publications

References 28 publications

XPS study on the correlation of magnetic properties and site occupancy of Al doped SrFe12O19

XPS study on the correlation of magnetic properties and site occupancy of Al doped SrFe12O19

Magnetism of Fe films grown on Co(100) studied by spin-resolved Fe3sphotoemission

Mean escape depth of signal photoelectrons ejected from solids by polarized x rays

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