The effect of pressure on the Morin transition in hematite (α-Fe2O3)

John B. Parise; Darren R. Locke; Christopher A. Tulk; Ian Swainson; Lachlan Cranswick

doi:10.1016/j.physb.2006.05.081

The effect of pressure on the Morin transition in hematite (α-Fe₂O₃)

John B. Parise
, Darren R. Locke
, Christopher A. Tulk
, Ian Swainson
, Lachlan Cranswick

Geosciences

Stony Brook University

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

21 Scopus citations

Abstract

Neutron powder scattering studies of hematite to a pressure (P) of 6.2 GPa in a Paris-Edinburgh (PE) cell with Fluorinert^® as a P-transmitting medium, reveal different behavior to previous investigations that used solid pressure-transmitting media. The P equivalent of the Morin transition is closely approached at room temperature at the highest P. In the present study the spin reorientation, from perpendicular to parallel to the rhombohedral [1 1 1] direction, begins at some 3 GPa higher and goes 25° beyond what was previously observed at high P.

Original language	English
Pages (from-to)	391-393
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	385-386 I
DOIs	https://doi.org/10.1016/j.physb.2006.05.081
State	Published - Nov 27 2006

Keywords

FeO
Hematite
High pressure
Magnetism
Morin transition
Neutron powder diffraction
Paris-Edinburgh cell

Access to Document

10.1016/j.physb.2006.05.081

Cite this

@article{d2af4da679e74e098501e716eadc2c40,

title = "The effect of pressure on the Morin transition in hematite (α-Fe2O3)",

abstract = "Neutron powder scattering studies of hematite to a pressure (P) of 6.2 GPa in a Paris-Edinburgh (PE) cell with Fluorinert{\textregistered} as a P-transmitting medium, reveal different behavior to previous investigations that used solid pressure-transmitting media. The P equivalent of the Morin transition is closely approached at room temperature at the highest P. In the present study the spin reorientation, from perpendicular to parallel to the rhombohedral [1 1 1] direction, begins at some 3 GPa higher and goes 25° beyond what was previously observed at high P.",

keywords = "FeO, Hematite, High pressure, Magnetism, Morin transition, Neutron powder diffraction, Paris-Edinburgh cell",

author = "Parise, \{John B.\} and Locke, \{Darren R.\} and Tulk, \{Christopher A.\} and Ian Swainson and Lachlan Cranswick",

year = "2006",

month = nov,

day = "27",

doi = "10.1016/j.physb.2006.05.081",

language = "English",

volume = "385-386 I",

pages = "391--393",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - The effect of pressure on the Morin transition in hematite (α-Fe2O3)

AU - Parise, John B.

AU - Locke, Darren R.

AU - Tulk, Christopher A.

AU - Swainson, Ian

AU - Cranswick, Lachlan

PY - 2006/11/27

Y1 - 2006/11/27

N2 - Neutron powder scattering studies of hematite to a pressure (P) of 6.2 GPa in a Paris-Edinburgh (PE) cell with Fluorinert® as a P-transmitting medium, reveal different behavior to previous investigations that used solid pressure-transmitting media. The P equivalent of the Morin transition is closely approached at room temperature at the highest P. In the present study the spin reorientation, from perpendicular to parallel to the rhombohedral [1 1 1] direction, begins at some 3 GPa higher and goes 25° beyond what was previously observed at high P.

AB - Neutron powder scattering studies of hematite to a pressure (P) of 6.2 GPa in a Paris-Edinburgh (PE) cell with Fluorinert® as a P-transmitting medium, reveal different behavior to previous investigations that used solid pressure-transmitting media. The P equivalent of the Morin transition is closely approached at room temperature at the highest P. In the present study the spin reorientation, from perpendicular to parallel to the rhombohedral [1 1 1] direction, begins at some 3 GPa higher and goes 25° beyond what was previously observed at high P.

KW - FeO

KW - Hematite

KW - High pressure

KW - Magnetism

KW - Morin transition

KW - Neutron powder diffraction

KW - Paris-Edinburgh cell

UR - https://www.scopus.com/pages/publications/33751431987

U2 - 10.1016/j.physb.2006.05.081

DO - 10.1016/j.physb.2006.05.081

M3 - Article

SN - 0921-4526

VL - 385-386 I

SP - 391

EP - 393

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

The effect of pressure on the Morin transition in hematite (α-Fe₂O₃)

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this