Polarized neutron glancing-angle diffraction study of magnetic structure at the Y/Gd(0001) interface

J. F. Ankner; P. D. Gallagher; A. Schreyer; H. Zhang; C. F. Majkrzak; S. K. Satija; H. Zabel; A. Matheny; C. P. Flynn

Polarized neutron glancing-angle diffraction study of magnetic structure at the Y/Gd(0001) interface

J. F. Ankner, P. D. Gallagher, A. Schreyer, H. Zhang, C. F. Majkrzak, S. K. Satija, H. Zabel, A. Matheny, C. P. Flynn

Research output: Contribution to journal › Conference article › peer-review

Abstract

By exciting diffraction in the Laue geometry by specularly reflected beams, penetrating x-rays and neutrons can be used to probe surface and interfacial atomic structure. We present the first such measurement utilizing polarized neutrons with both incident- and exit-angle resolution. We have observed the evolution of magnetic order by monitoring the in-plane (101̄0) Bragg peak from an epitaxially grown film consisting of 150 angstrom Y(0001) on 5000 angstrom Gd(0001). Magnetic scattering increases as the film is cooled from the Gd bulk Curie temperature (293 K) to 100 K. The gross features of the data can be captured by a simple two-layer model, but sufficient disagreement remains that one may yet hope to extract non-trivial structure at the Y/Gd interface.

Original language	English
Pages (from-to)	573-576
Number of pages	4
Journal	Materials Research Society Symposium - Proceedings
Volume	376
State	Published - 1995
Externally published	Yes
Event	Proceedings of the 1994 MRS Fall Meeting - Boston, MA, USA Duration: Nov 28 1994 → Nov 30 1994

Cite this

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title = "Polarized neutron glancing-angle diffraction study of magnetic structure at the Y/Gd(0001) interface",

abstract = "By exciting diffraction in the Laue geometry by specularly reflected beams, penetrating x-rays and neutrons can be used to probe surface and interfacial atomic structure. We present the first such measurement utilizing polarized neutrons with both incident- and exit-angle resolution. We have observed the evolution of magnetic order by monitoring the in-plane (10{\=1}0) Bragg peak from an epitaxially grown film consisting of 150 angstrom Y(0001) on 5000 angstrom Gd(0001). Magnetic scattering increases as the film is cooled from the Gd bulk Curie temperature (293 K) to 100 K. The gross features of the data can be captured by a simple two-layer model, but sufficient disagreement remains that one may yet hope to extract non-trivial structure at the Y/Gd interface.",

author = "Ankner, {J. F.} and Gallagher, {P. D.} and A. Schreyer and H. Zhang and Majkrzak, {C. F.} and Satija, {S. K.} and H. Zabel and A. Matheny and Flynn, {C. P.}",

year = "1995",

language = "English",

volume = "376",

pages = "573--576",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

note = "Proceedings of the 1994 MRS Fall Meeting ; Conference date: 28-11-1994 Through 30-11-1994",

}

TY - JOUR

T1 - Polarized neutron glancing-angle diffraction study of magnetic structure at the Y/Gd(0001) interface

AU - Ankner, J. F.

AU - Gallagher, P. D.

AU - Schreyer, A.

AU - Zhang, H.

AU - Majkrzak, C. F.

AU - Satija, S. K.

AU - Zabel, H.

AU - Matheny, A.

AU - Flynn, C. P.

PY - 1995

Y1 - 1995

N2 - By exciting diffraction in the Laue geometry by specularly reflected beams, penetrating x-rays and neutrons can be used to probe surface and interfacial atomic structure. We present the first such measurement utilizing polarized neutrons with both incident- and exit-angle resolution. We have observed the evolution of magnetic order by monitoring the in-plane (101̄0) Bragg peak from an epitaxially grown film consisting of 150 angstrom Y(0001) on 5000 angstrom Gd(0001). Magnetic scattering increases as the film is cooled from the Gd bulk Curie temperature (293 K) to 100 K. The gross features of the data can be captured by a simple two-layer model, but sufficient disagreement remains that one may yet hope to extract non-trivial structure at the Y/Gd interface.

AB - By exciting diffraction in the Laue geometry by specularly reflected beams, penetrating x-rays and neutrons can be used to probe surface and interfacial atomic structure. We present the first such measurement utilizing polarized neutrons with both incident- and exit-angle resolution. We have observed the evolution of magnetic order by monitoring the in-plane (101̄0) Bragg peak from an epitaxially grown film consisting of 150 angstrom Y(0001) on 5000 angstrom Gd(0001). Magnetic scattering increases as the film is cooled from the Gd bulk Curie temperature (293 K) to 100 K. The gross features of the data can be captured by a simple two-layer model, but sufficient disagreement remains that one may yet hope to extract non-trivial structure at the Y/Gd interface.

UR - http://www.scopus.com/inward/record.url?scp=0029545820&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0029545820

SN - 0272-9172

VL - 376

SP - 573

EP - 576

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1994 MRS Fall Meeting

Y2 - 28 November 1994 through 30 November 1994

ER -

Polarized neutron glancing-angle diffraction study of magnetic structure at the Y/Gd(0001) interface

Abstract

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