X-ray magnetic circular dichroism study of uranium/iron multilayers

F. Wilhelm; N. Jaouen; A. Rogalev; W. G. Stirling; R. Springell; S. W. Zochowski; A. M. Beesley; S. D. Brown; M. F. Thomas; G. H. Lander; S. Langridge; R. C. C. Ward; M. R. Wells

doi:10.1103/PhysRevB.76.024425

X-ray magnetic circular dichroism study of uranium/iron multilayers

F. Wilhelm, N. Jaouen, A. Rogalev, W. G. Stirling^*, R. Springell, S. W. Zochowski, A. M. Beesley, S. D. Brown, M. F. Thomas, G. H. Lander, S. Langridge, R. C. C. Ward, M. R. Wells

^*Corresponding author for this work

Interface Analysis Centre

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

X-ray magnetic circular dichroism (XMCD) measurements were performed at the U M(4,5) edges and Fe K edge on well-defined uranium/iron multilayers with different compositions. The multilayers have layer thicknesses in the range 9-40 A for uranium and 9-34 A for iron. At both 10 K and room temperature, the U layers are magnetically polarized in all of the multilayers studied. To deduce the magnetic moment on the uranium from the XMCD results requires assumptions about the magnetic dipole operator <T(Z)> in the analysis, and this is discussed in detail. Given the most likely scenario of strong hybridization between the U 5f and Fe 3d states, the largest value of the induced U moment is similar to 0.12 mu(B), which is located primarily at the interface and oscillates within the uranium layer.

Original language	English
Article number	024425
Number of pages	12
Journal	Physical Review B: Condensed Matter and Materials Physics
Volume	76
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.76.024425
Publication status	Published - Jul 2007

Keywords

INTERMETALLIC COMPOUND UFE2
SELF-ABSORPTION
ORBITAL-MOMENT
GROUND-STATE
ALLOYS
REFLECTIVITY
ANISOTROPY
FILMS
FERROMAGNETISM
TEMPERATURE

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Wilhelm, F., Jaouen, N., Rogalev, A., Stirling, W. G., Springell, R., Zochowski, S. W., Beesley, A. M., Brown, S. D., Thomas, M. F., Lander, G. H., Langridge, S., Ward, R. C. C., & Wells, M. R. (2007). X-ray magnetic circular dichroism study of uranium/iron multilayers. Physical Review B: Condensed Matter and Materials Physics, 76(2), [024425]. https://doi.org/10.1103/PhysRevB.76.024425

@article{9edf42ce6b7d4b739dc4ab0297229f72,

title = "X-ray magnetic circular dichroism study of uranium/iron multilayers",

abstract = "X-ray magnetic circular dichroism (XMCD) measurements were performed at the U M(4,5) edges and Fe K edge on well-defined uranium/iron multilayers with different compositions. The multilayers have layer thicknesses in the range 9-40 A for uranium and 9-34 A for iron. At both 10 K and room temperature, the U layers are magnetically polarized in all of the multilayers studied. To deduce the magnetic moment on the uranium from the XMCD results requires assumptions about the magnetic dipole operator <T(Z)> in the analysis, and this is discussed in detail. Given the most likely scenario of strong hybridization between the U 5f and Fe 3d states, the largest value of the induced U moment is similar to 0.12 mu(B), which is located primarily at the interface and oscillates within the uranium layer.",

keywords = "INTERMETALLIC COMPOUND UFE2, SELF-ABSORPTION, ORBITAL-MOMENT, GROUND-STATE, ALLOYS, REFLECTIVITY, ANISOTROPY, FILMS, FERROMAGNETISM, TEMPERATURE",

author = "F. Wilhelm and N. Jaouen and A. Rogalev and Stirling, {W. G.} and R. Springell and Zochowski, {S. W.} and Beesley, {A. M.} and Brown, {S. D.} and Thomas, {M. F.} and Lander, {G. H.} and S. Langridge and Ward, {R. C. C.} and Wells, {M. R.}",

year = "2007",

month = jul,

doi = "10.1103/PhysRevB.76.024425",

language = "English",

volume = "76",

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

issn = "1098-0121",

publisher = "American Physical Society (APS)",

number = "2",

}

TY - JOUR

T1 - X-ray magnetic circular dichroism study of uranium/iron multilayers

AU - Wilhelm, F.

AU - Jaouen, N.

AU - Rogalev, A.

AU - Stirling, W. G.

AU - Springell, R.

AU - Zochowski, S. W.

AU - Beesley, A. M.

AU - Brown, S. D.

AU - Thomas, M. F.

AU - Lander, G. H.

AU - Langridge, S.

AU - Ward, R. C. C.

AU - Wells, M. R.

PY - 2007/7

Y1 - 2007/7

N2 - X-ray magnetic circular dichroism (XMCD) measurements were performed at the U M(4,5) edges and Fe K edge on well-defined uranium/iron multilayers with different compositions. The multilayers have layer thicknesses in the range 9-40 A for uranium and 9-34 A for iron. At both 10 K and room temperature, the U layers are magnetically polarized in all of the multilayers studied. To deduce the magnetic moment on the uranium from the XMCD results requires assumptions about the magnetic dipole operator <T(Z)> in the analysis, and this is discussed in detail. Given the most likely scenario of strong hybridization between the U 5f and Fe 3d states, the largest value of the induced U moment is similar to 0.12 mu(B), which is located primarily at the interface and oscillates within the uranium layer.

AB - X-ray magnetic circular dichroism (XMCD) measurements were performed at the U M(4,5) edges and Fe K edge on well-defined uranium/iron multilayers with different compositions. The multilayers have layer thicknesses in the range 9-40 A for uranium and 9-34 A for iron. At both 10 K and room temperature, the U layers are magnetically polarized in all of the multilayers studied. To deduce the magnetic moment on the uranium from the XMCD results requires assumptions about the magnetic dipole operator <T(Z)> in the analysis, and this is discussed in detail. Given the most likely scenario of strong hybridization between the U 5f and Fe 3d states, the largest value of the induced U moment is similar to 0.12 mu(B), which is located primarily at the interface and oscillates within the uranium layer.

KW - INTERMETALLIC COMPOUND UFE2

KW - SELF-ABSORPTION

KW - ORBITAL-MOMENT

KW - GROUND-STATE

KW - ALLOYS

KW - REFLECTIVITY

KW - ANISOTROPY

KW - FILMS

KW - FERROMAGNETISM

KW - TEMPERATURE

U2 - 10.1103/PhysRevB.76.024425

DO - 10.1103/PhysRevB.76.024425

M3 - Article (Academic Journal)

SN - 1098-0121

VL - 76

JO - Physical Review B: Condensed Matter and Materials Physics

JF - Physical Review B: Condensed Matter and Materials Physics

IS - 2

M1 - 024425

ER -

X-ray magnetic circular dichroism study of uranium/iron multilayers

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