Properties of epitaxial chromium dioxide films grown by chemical vapor deposition using a liquid precursor

A. Anguelouch; A. Gupta; Gang Xiao; G. X. Miao; D. W. Abraham; S. Ingvarsson; Y. Ji; C. L. Chien

doi:10.1063/1.1455604

Properties of epitaxial chromium dioxide films grown by chemical vapor deposition using a liquid precursor

A. Anguelouch
, A. Gupta
, Gang Xiao
, G. X. Miao
, D. W. Abraham
, S. Ingvarsson
, Y. Ji
, C. L. Chien

Faculty of Physical Sciences

University of Iceland

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

Abstract

Epitaxial chromium dioxide (CrO ₂) films have been grown using chemical vapor deposition on (100) TiO ₂ substrate with chromyl chloride (CrO ₂Cl ₂) as a liquid precursor. The films are extremely smooth (rms roughness less than 4.6 Å for a 1000-Å-thick film) and have the largest spin polarization (P=98.4%) yet observed, as determined by point contact Andreev reflection. Magnetization switching properties of the films are close to those of a single-domain particle. Preliminary results on the in situ growth of exchange-biased CrO ₂/Cr ₂O ₃ multilayers are also reported. Although a bias field is observed, it is much smaller in comparison with the coercivity of the CrO ₂ film.

Original language	English
Pages (from-to)	7140-7142
Number of pages	3
Journal	Journal of Applied Physics
Volume	91
Issue number	10 I
DOIs	https://doi.org/10.1063/1.1455604
Publication status	Published - 15 May 2002

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@article{143673bae6f649049d7a747ba48457ce,

title = "Properties of epitaxial chromium dioxide films grown by chemical vapor deposition using a liquid precursor",

abstract = "Epitaxial chromium dioxide (CrO 2) films have been grown using chemical vapor deposition on (100) TiO 2 substrate with chromyl chloride (CrO 2Cl 2) as a liquid precursor. The films are extremely smooth (rms roughness less than 4.6 {\AA} for a 1000-{\AA}-thick film) and have the largest spin polarization (P=98.4\%) yet observed, as determined by point contact Andreev reflection. Magnetization switching properties of the films are close to those of a single-domain particle. Preliminary results on the in situ growth of exchange-biased CrO 2/Cr 2O 3 multilayers are also reported. Although a bias field is observed, it is much smaller in comparison with the coercivity of the CrO 2 film.",

author = "A. Anguelouch and A. Gupta and Gang Xiao and Miao, \{G. X.\} and Abraham, \{D. W.\} and S. Ingvarsson and Y. Ji and Chien, \{C. L.\}",

year = "2002",

month = may,

day = "15",

doi = "10.1063/1.1455604",

language = "English",

volume = "91",

pages = "7140--7142",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Properties of epitaxial chromium dioxide films grown by chemical vapor deposition using a liquid precursor

AU - Anguelouch, A.

AU - Gupta, A.

AU - Xiao, Gang

AU - Miao, G. X.

AU - Abraham, D. W.

AU - Ingvarsson, S.

AU - Ji, Y.

AU - Chien, C. L.

PY - 2002/5/15

Y1 - 2002/5/15

N2 - Epitaxial chromium dioxide (CrO 2) films have been grown using chemical vapor deposition on (100) TiO 2 substrate with chromyl chloride (CrO 2Cl 2) as a liquid precursor. The films are extremely smooth (rms roughness less than 4.6 Å for a 1000-Å-thick film) and have the largest spin polarization (P=98.4%) yet observed, as determined by point contact Andreev reflection. Magnetization switching properties of the films are close to those of a single-domain particle. Preliminary results on the in situ growth of exchange-biased CrO 2/Cr 2O 3 multilayers are also reported. Although a bias field is observed, it is much smaller in comparison with the coercivity of the CrO 2 film.

AB - Epitaxial chromium dioxide (CrO 2) films have been grown using chemical vapor deposition on (100) TiO 2 substrate with chromyl chloride (CrO 2Cl 2) as a liquid precursor. The films are extremely smooth (rms roughness less than 4.6 Å for a 1000-Å-thick film) and have the largest spin polarization (P=98.4%) yet observed, as determined by point contact Andreev reflection. Magnetization switching properties of the films are close to those of a single-domain particle. Preliminary results on the in situ growth of exchange-biased CrO 2/Cr 2O 3 multilayers are also reported. Although a bias field is observed, it is much smaller in comparison with the coercivity of the CrO 2 film.

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U2 - 10.1063/1.1455604

DO - 10.1063/1.1455604

M3 - Article

SN - 0021-8979

VL - 91

SP - 7140

EP - 7142

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10 I

ER -

Properties of epitaxial chromium dioxide films grown by chemical vapor deposition using a liquid precursor

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