Experimental study of the x-ray linear dichroism of NiO films grown on Fe(001)

Y. Z. Wu; B. Sinkovic; C. Won; J. Zhu; Y. Zhao; Z. Q. Qiu

doi:10.1103/PhysRevB.85.134436

Experimental study of the x-ray linear dichroism of NiO films grown on Fe(001)

Y. Z. Wu, B. Sinkovic, C. Won, J. Zhu, Y. Zhao, Z. Q. Qiu

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

5 Citations (Scopus)

Abstract

X-ray linear dichroism (XLD) effects at the Ni L ₂ edge of NiO films grown on Fe(001) were studied systematically as a function of NiO thickness (d _NiO), temperature, interfacial modulation, and Fe magnetization directions. We found that the Ni XLD signal exhibited an unusual dependence on d _NiO. The XLD effect persists above the Néel temperature and exhibits a similar d _NiO-dependence as the behavior at room temperature. On the other hand the Ni XLD signal reverses its sign as the Fe magnetization is switched by 90. We propose a possible mechanism such that the Fe magnetostriction induces the NiO uniaxial crystal field to dominate the XLD magnitude in the NiO/Fe(001) system.

Original language	English
Article number	134436
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.85.134436
Publication status	Published - 23 Apr 2012

Access to Document

10.1103/PhysRevB.85.134436

Cite this

@article{e3739ea3f5d544dd9bf3a4918ff0bf44,

title = "Experimental study of the x-ray linear dichroism of NiO films grown on Fe(001)",

abstract = "X-ray linear dichroism (XLD) effects at the Ni L 2 edge of NiO films grown on Fe(001) were studied systematically as a function of NiO thickness (d NiO), temperature, interfacial modulation, and Fe magnetization directions. We found that the Ni XLD signal exhibited an unusual dependence on d NiO. The XLD effect persists above the N{\'e}el temperature and exhibits a similar d NiO-dependence as the behavior at room temperature. On the other hand the Ni XLD signal reverses its sign as the Fe magnetization is switched by 90. We propose a possible mechanism such that the Fe magnetostriction induces the NiO uniaxial crystal field to dominate the XLD magnitude in the NiO/Fe(001) system.",

author = "Wu, {Y. Z.} and B. Sinkovic and C. Won and J. Zhu and Y. Zhao and Qiu, {Z. Q.}",

year = "2012",

month = apr,

day = "23",

doi = "10.1103/PhysRevB.85.134436",

language = "English",

volume = "85",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "13",

}

TY - JOUR

T1 - Experimental study of the x-ray linear dichroism of NiO films grown on Fe(001)

AU - Wu, Y. Z.

AU - Sinkovic, B.

AU - Won, C.

AU - Zhu, J.

AU - Zhao, Y.

AU - Qiu, Z. Q.

PY - 2012/4/23

Y1 - 2012/4/23

N2 - X-ray linear dichroism (XLD) effects at the Ni L 2 edge of NiO films grown on Fe(001) were studied systematically as a function of NiO thickness (d NiO), temperature, interfacial modulation, and Fe magnetization directions. We found that the Ni XLD signal exhibited an unusual dependence on d NiO. The XLD effect persists above the Néel temperature and exhibits a similar d NiO-dependence as the behavior at room temperature. On the other hand the Ni XLD signal reverses its sign as the Fe magnetization is switched by 90. We propose a possible mechanism such that the Fe magnetostriction induces the NiO uniaxial crystal field to dominate the XLD magnitude in the NiO/Fe(001) system.

AB - X-ray linear dichroism (XLD) effects at the Ni L 2 edge of NiO films grown on Fe(001) were studied systematically as a function of NiO thickness (d NiO), temperature, interfacial modulation, and Fe magnetization directions. We found that the Ni XLD signal exhibited an unusual dependence on d NiO. The XLD effect persists above the Néel temperature and exhibits a similar d NiO-dependence as the behavior at room temperature. On the other hand the Ni XLD signal reverses its sign as the Fe magnetization is switched by 90. We propose a possible mechanism such that the Fe magnetostriction induces the NiO uniaxial crystal field to dominate the XLD magnitude in the NiO/Fe(001) system.

UR - http://www.scopus.com/inward/record.url?scp=84860204167&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.85.134436

DO - 10.1103/PhysRevB.85.134436

M3 - Article

AN - SCOPUS:84860204167

SN - 1098-0121

VL - 85

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 13

M1 - 134436

ER -

Experimental study of the x-ray linear dichroism of NiO films grown on Fe(001)

Abstract

Access to Document

Other files and links

Fingerprint

Cite this