Magnetic anisotropy in ilmenite-hematite solid solution thin films grown by pulsed laser ablation

K. Rode; R. D. Gunning; R. G.S. Sofin; M. Venkatesan; J. G. Lunney; J. M.D. Coey; I. V. Shvets

doi:10.1016/j.jmmm.2008.06.010

Magnetic anisotropy in ilmenite-hematite solid solution thin films grown by pulsed laser ablation

K. Rode^*, R. D. Gunning, R. G.S. Sofin, M. Venkatesan, J. G. Lunney, J. M.D. Coey, I. V. Shvets

^*Corresponding author for this work

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

12 Citations (Scopus)

Abstract

Ferromagnetic thin films of the ilmenite-hematite solid solution Fe_2-xTi_xO₃ with x=0.6 and x=0.8 have been grown on (0 0 1) sapphire substrates. X-ray diffraction analysis reveals that the films are single phase with the ilmenite (R over(3, -)) crystal structure. Strong easy-plane anisotropy is observed for the two films, which are nominally n or p type with K₁=-8×10⁶ J m^-3 for x=0.6 and -11×10⁶ J m^-3 for x=0.8 at T=4 K. The trigonal splitting of the ⁵T_2g energy level of Fe²⁺ is inferred to be 0.11 eV, and the zero-field splitting parameter D to be equal to 15 K.

Original language	English
Pages (from-to)	3238-3241
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	320
Issue number	23
DOIs	https://doi.org/10.1016/j.jmmm.2008.06.010
Publication status	Published - Dec 2008
Externally published	Yes

Keywords

Epitaxial film
Ferrimagnetics
Hematite
Ilmenite
Magnetic anisotropy
Magnetic semiconductors
Pulsed laser ablation
Spin electronics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2008.06.010

Cite this

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title = "Magnetic anisotropy in ilmenite-hematite solid solution thin films grown by pulsed laser ablation",

abstract = "Ferromagnetic thin films of the ilmenite-hematite solid solution Fe2-xTixO3 with x=0.6 and x=0.8 have been grown on (0 0 1) sapphire substrates. X-ray diffraction analysis reveals that the films are single phase with the ilmenite (R over(3, -)) crystal structure. Strong easy-plane anisotropy is observed for the two films, which are nominally n or p type with K1=-8×106 J m-3 for x=0.6 and -11×106 J m-3 for x=0.8 at T=4 K. The trigonal splitting of the 5T2g energy level of Fe2+ is inferred to be 0.11 eV, and the zero-field splitting parameter D to be equal to 15 K.",

keywords = "Epitaxial film, Ferrimagnetics, Hematite, Ilmenite, Magnetic anisotropy, Magnetic semiconductors, Pulsed laser ablation, Spin electronics",

author = "K. Rode and Gunning, {R. D.} and Sofin, {R. G.S.} and M. Venkatesan and Lunney, {J. G.} and Coey, {J. M.D.} and Shvets, {I. V.}",

year = "2008",

month = dec,

doi = "10.1016/j.jmmm.2008.06.010",

language = "English",

volume = "320",

pages = "3238--3241",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "23",

}

TY - JOUR

T1 - Magnetic anisotropy in ilmenite-hematite solid solution thin films grown by pulsed laser ablation

AU - Rode, K.

AU - Gunning, R. D.

AU - Sofin, R. G.S.

AU - Venkatesan, M.

AU - Lunney, J. G.

AU - Coey, J. M.D.

AU - Shvets, I. V.

PY - 2008/12

Y1 - 2008/12

N2 - Ferromagnetic thin films of the ilmenite-hematite solid solution Fe2-xTixO3 with x=0.6 and x=0.8 have been grown on (0 0 1) sapphire substrates. X-ray diffraction analysis reveals that the films are single phase with the ilmenite (R over(3, -)) crystal structure. Strong easy-plane anisotropy is observed for the two films, which are nominally n or p type with K1=-8×106 J m-3 for x=0.6 and -11×106 J m-3 for x=0.8 at T=4 K. The trigonal splitting of the 5T2g energy level of Fe2+ is inferred to be 0.11 eV, and the zero-field splitting parameter D to be equal to 15 K.

AB - Ferromagnetic thin films of the ilmenite-hematite solid solution Fe2-xTixO3 with x=0.6 and x=0.8 have been grown on (0 0 1) sapphire substrates. X-ray diffraction analysis reveals that the films are single phase with the ilmenite (R over(3, -)) crystal structure. Strong easy-plane anisotropy is observed for the two films, which are nominally n or p type with K1=-8×106 J m-3 for x=0.6 and -11×106 J m-3 for x=0.8 at T=4 K. The trigonal splitting of the 5T2g energy level of Fe2+ is inferred to be 0.11 eV, and the zero-field splitting parameter D to be equal to 15 K.

KW - Epitaxial film

KW - Ferrimagnetics

KW - Hematite

KW - Ilmenite

KW - Magnetic anisotropy

KW - Magnetic semiconductors

KW - Pulsed laser ablation

KW - Spin electronics

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U2 - 10.1016/j.jmmm.2008.06.010

DO - 10.1016/j.jmmm.2008.06.010

M3 - Article

AN - SCOPUS:53749103831

SN - 0304-8853

VL - 320

SP - 3238

EP - 3241

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 23

ER -

Magnetic anisotropy in ilmenite-hematite solid solution thin films grown by pulsed laser ablation

Abstract

Keywords

ASJC Scopus subject areas

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