Resonant photoemission and spin polarization of Co(1-x)Fe(x)S(2).

Xin Zhang, Ning Wu, Michael Manno, C. Leighton, Elio Vescovo, P. A. Dowben

Research output: Contribution to journalArticle

Abstract

The valence band occupied state electronic structure of Co(1-x)Fe(x)S(2) in the region of the Fe/Co 3d bands has been investigated using photoemission and spin-polarized photoemission. As measured by using spin-polarized ultraviolet photoemission, the surface Fermi level spin polarization of Co(1-x)Fe(x)S(2) thin films at 50 K, specifically at x = 0, 0.05, 0.10 and 0.15, was found to be much reduced compared to that of the bulk. The spin polarization nonetheless increases with Fe concentration. The resonant photoemission spectroscopy provides evidence that S bands have a strong resonance at the photon energy corresponding to the Co 2p core level, indicating strong hybridization between Co and S bands in Co(1-x)Fe(x)S(2) (at small x). Similar evidence exists for Fe hybridization with the S bands.

Original languageEnglish (US)
Number of pages1
JournalJournal of physics. Condensed matter : an Institute of Physics journal
Volume25
Issue number1
StatePublished - Jan 9 2013

Fingerprint

Spin polarization
Photoemission
S band
photoelectric emission
polarization
Core levels
Photoelectron spectroscopy
Valence bands
Fermi level
Electronic structure
Photons
Fermi surfaces
Thin films
electronic structure
valence
photons
thin films
spectroscopy
energy

Cite this

Resonant photoemission and spin polarization of Co(1-x)Fe(x)S(2). / Zhang, Xin; Wu, Ning; Manno, Michael; Leighton, C.; Vescovo, Elio; Dowben, P. A.

In: Journal of physics. Condensed matter : an Institute of Physics journal, Vol. 25, No. 1, 09.01.2013.

Research output: Contribution to journalArticle

@article{63571d517d0e474fae1c8892d585a520,
title = "Resonant photoemission and spin polarization of Co(1-x)Fe(x)S(2).",
abstract = "The valence band occupied state electronic structure of Co(1-x)Fe(x)S(2) in the region of the Fe/Co 3d bands has been investigated using photoemission and spin-polarized photoemission. As measured by using spin-polarized ultraviolet photoemission, the surface Fermi level spin polarization of Co(1-x)Fe(x)S(2) thin films at 50 K, specifically at x = 0, 0.05, 0.10 and 0.15, was found to be much reduced compared to that of the bulk. The spin polarization nonetheless increases with Fe concentration. The resonant photoemission spectroscopy provides evidence that S bands have a strong resonance at the photon energy corresponding to the Co 2p core level, indicating strong hybridization between Co and S bands in Co(1-x)Fe(x)S(2) (at small x). Similar evidence exists for Fe hybridization with the S bands.",
author = "Xin Zhang and Ning Wu and Michael Manno and C. Leighton and Elio Vescovo and Dowben, {P. A.}",
year = "2013",
month = "1",
day = "9",
language = "English (US)",
volume = "25",
journal = "Journal of physics. Condensed matter : an Institute of Physics journal",
issn = "0953-8984",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Resonant photoemission and spin polarization of Co(1-x)Fe(x)S(2).

AU - Zhang, Xin

AU - Wu, Ning

AU - Manno, Michael

AU - Leighton, C.

AU - Vescovo, Elio

AU - Dowben, P. A.

PY - 2013/1/9

Y1 - 2013/1/9

N2 - The valence band occupied state electronic structure of Co(1-x)Fe(x)S(2) in the region of the Fe/Co 3d bands has been investigated using photoemission and spin-polarized photoemission. As measured by using spin-polarized ultraviolet photoemission, the surface Fermi level spin polarization of Co(1-x)Fe(x)S(2) thin films at 50 K, specifically at x = 0, 0.05, 0.10 and 0.15, was found to be much reduced compared to that of the bulk. The spin polarization nonetheless increases with Fe concentration. The resonant photoemission spectroscopy provides evidence that S bands have a strong resonance at the photon energy corresponding to the Co 2p core level, indicating strong hybridization between Co and S bands in Co(1-x)Fe(x)S(2) (at small x). Similar evidence exists for Fe hybridization with the S bands.

AB - The valence band occupied state electronic structure of Co(1-x)Fe(x)S(2) in the region of the Fe/Co 3d bands has been investigated using photoemission and spin-polarized photoemission. As measured by using spin-polarized ultraviolet photoemission, the surface Fermi level spin polarization of Co(1-x)Fe(x)S(2) thin films at 50 K, specifically at x = 0, 0.05, 0.10 and 0.15, was found to be much reduced compared to that of the bulk. The spin polarization nonetheless increases with Fe concentration. The resonant photoemission spectroscopy provides evidence that S bands have a strong resonance at the photon energy corresponding to the Co 2p core level, indicating strong hybridization between Co and S bands in Co(1-x)Fe(x)S(2) (at small x). Similar evidence exists for Fe hybridization with the S bands.

UR - http://www.scopus.com/inward/record.url?scp=84878702021&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878702021&partnerID=8YFLogxK

M3 - Article

C2 - 23160359

VL - 25

JO - Journal of physics. Condensed matter : an Institute of Physics journal

JF - Journal of physics. Condensed matter : an Institute of Physics journal

SN - 0953-8984

IS - 1

ER -