Growth and magnetic properties of oriented α-Fe2O 3 nanorods

Jih Jen Wu; Ya Lien Lee; Hsuen Han Chiang; Daniel Kwan Pang Wong

doi:10.1021/jp0644661

Growth and magnetic properties of oriented α-Fe₂O ₃ nanorods

Jih Jen Wu, Ya Lien Lee, Hsuen Han Chiang, Daniel Kwan Pang Wong

Department of Chemical Engineering

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

126 Citations (Scopus)

Abstract

α-Fe₂O₃ nanorods have been deposited on Si substrates using the metal-organic chemical vapor deposition method. Structural analyses indicated that α-Fe₂O₃ nanorods are preferentially oriented in the [104] direction on Si(100) substrates, and the nanorod possesses the single-crystalline structure. MFM image suggests that a spin domain is formed in the α-Fe₂O₃ nanorod. Anisotropic magnetic property of the α-Fe₂O₃ nanorods, i.e., the discrepancy of the saturation magnetization, is observed from SQUID measurements when the magnetic field are applied parallel and perpendicular to the substrate. A lower Morin temperature than that of the macroscopically crystalline hematite is observed when the magnetic field is applied parallel to the substrate.

Original language	English
Pages (from-to)	18108-18111
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	37
DOIs	https://doi.org/10.1021/jp0644661
Publication status	Published - 2006 Sept 21

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1021/jp0644661

Cite this

@article{af3c3692b332420a953343d43ab23b38,

title = "Growth and magnetic properties of oriented α-Fe2O 3 nanorods",

abstract = "α-Fe2O3 nanorods have been deposited on Si substrates using the metal-organic chemical vapor deposition method. Structural analyses indicated that α-Fe2O3 nanorods are preferentially oriented in the [104] direction on Si(100) substrates, and the nanorod possesses the single-crystalline structure. MFM image suggests that a spin domain is formed in the α-Fe2O3 nanorod. Anisotropic magnetic property of the α-Fe2O3 nanorods, i.e., the discrepancy of the saturation magnetization, is observed from SQUID measurements when the magnetic field are applied parallel and perpendicular to the substrate. A lower Morin temperature than that of the macroscopically crystalline hematite is observed when the magnetic field is applied parallel to the substrate.",

author = "Wu, {Jih Jen} and Lee, {Ya Lien} and Chiang, {Hsuen Han} and Wong, {Daniel Kwan Pang}",

year = "2006",

month = sep,

day = "21",

doi = "10.1021/jp0644661",

language = "English",

volume = "110",

pages = "18108--18111",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

number = "37",

}

TY - JOUR

T1 - Growth and magnetic properties of oriented α-Fe2O 3 nanorods

AU - Wu, Jih Jen

AU - Lee, Ya Lien

AU - Chiang, Hsuen Han

AU - Wong, Daniel Kwan Pang

PY - 2006/9/21

Y1 - 2006/9/21

N2 - α-Fe2O3 nanorods have been deposited on Si substrates using the metal-organic chemical vapor deposition method. Structural analyses indicated that α-Fe2O3 nanorods are preferentially oriented in the [104] direction on Si(100) substrates, and the nanorod possesses the single-crystalline structure. MFM image suggests that a spin domain is formed in the α-Fe2O3 nanorod. Anisotropic magnetic property of the α-Fe2O3 nanorods, i.e., the discrepancy of the saturation magnetization, is observed from SQUID measurements when the magnetic field are applied parallel and perpendicular to the substrate. A lower Morin temperature than that of the macroscopically crystalline hematite is observed when the magnetic field is applied parallel to the substrate.

AB - α-Fe2O3 nanorods have been deposited on Si substrates using the metal-organic chemical vapor deposition method. Structural analyses indicated that α-Fe2O3 nanorods are preferentially oriented in the [104] direction on Si(100) substrates, and the nanorod possesses the single-crystalline structure. MFM image suggests that a spin domain is formed in the α-Fe2O3 nanorod. Anisotropic magnetic property of the α-Fe2O3 nanorods, i.e., the discrepancy of the saturation magnetization, is observed from SQUID measurements when the magnetic field are applied parallel and perpendicular to the substrate. A lower Morin temperature than that of the macroscopically crystalline hematite is observed when the magnetic field is applied parallel to the substrate.

UR - http://www.scopus.com/inward/record.url?scp=33749617065&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749617065&partnerID=8YFLogxK

U2 - 10.1021/jp0644661

DO - 10.1021/jp0644661

M3 - Article

C2 - 16970420

AN - SCOPUS:33749617065

SN - 1520-6106

VL - 110

SP - 18108

EP - 18111

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 37

ER -

Growth and magnetic properties of oriented α-Fe₂O ₃ nanorods

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this