The magnetoelectric effect in LiFePO4 – revisited

Ellen Fogh; Bastian Klemke; Alexandre Pages; Jiying Li; David Vaknin; Henrik M. Rønnow; Niels B. Christensen; Rasmus Toft-Petersen

doi:10.1016/j.physb.2022.414380

The magnetoelectric effect in LiFePO₄ – revisited

Ellen Fogh
, Bastian Klemke
, Alexandre Pages
, Jiying Li
, David Vaknin
, Henrik M. Rønnow
, Niels B. Christensen
, Rasmus Toft-Petersen

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

6 Scopus citations

Abstract

We study the magnetoelectric effect in LiFePO₄ using the pyrocurrent method to determine the magnetic-field-induced electric polarization as a function of temperature for various applied magnetic field strengths. We discover a diagonal magnetoelectric tensor element not previously reported. This new coupling reflects the emergence of an electric polarization along a induced by a magnetic field along the same direction and is consistent with the symmetry-imposed requirements for the small canting components of the magnetic ground state reported for this compound. Our observation is thus further evidence for a ground state which is not supported by the space group Pnma as originally assigned to LiFePO₄.

Original language	English
Article number	414380
Journal	Physica B: Condensed Matter
Volume	648
DOIs	https://doi.org/10.1016/j.physb.2022.414380
State	Published - 1 Jan 2023
Externally published	Yes

Keywords

Magnetic symmetry
Magnetoelectric effect
Phase transition
Pyroelectric current

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10.1016/j.physb.2022.414380

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title = "The magnetoelectric effect in LiFePO4 – revisited",

abstract = "We study the magnetoelectric effect in LiFePO4 using the pyrocurrent method to determine the magnetic-field-induced electric polarization as a function of temperature for various applied magnetic field strengths. We discover a diagonal magnetoelectric tensor element not previously reported. This new coupling reflects the emergence of an electric polarization along a induced by a magnetic field along the same direction and is consistent with the symmetry-imposed requirements for the small canting components of the magnetic ground state reported for this compound. Our observation is thus further evidence for a ground state which is not supported by the space group Pnma as originally assigned to LiFePO4.",

keywords = "Magnetic symmetry, Magnetoelectric effect, Phase transition, Pyroelectric current",

author = "Ellen Fogh and Bastian Klemke and Alexandre Pages and Jiying Li and David Vaknin and R{\o}nnow, \{Henrik M.\} and Christensen, \{Niels B.\} and Rasmus Toft-Petersen",

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doi = "10.1016/j.physb.2022.414380",

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TY - JOUR

T1 - The magnetoelectric effect in LiFePO4 – revisited

AU - Fogh, Ellen

AU - Klemke, Bastian

AU - Pages, Alexandre

AU - Li, Jiying

AU - Vaknin, David

AU - Rønnow, Henrik M.

AU - Christensen, Niels B.

AU - Toft-Petersen, Rasmus

PY - 2023/1/1

Y1 - 2023/1/1

N2 - We study the magnetoelectric effect in LiFePO4 using the pyrocurrent method to determine the magnetic-field-induced electric polarization as a function of temperature for various applied magnetic field strengths. We discover a diagonal magnetoelectric tensor element not previously reported. This new coupling reflects the emergence of an electric polarization along a induced by a magnetic field along the same direction and is consistent with the symmetry-imposed requirements for the small canting components of the magnetic ground state reported for this compound. Our observation is thus further evidence for a ground state which is not supported by the space group Pnma as originally assigned to LiFePO4.

AB - We study the magnetoelectric effect in LiFePO4 using the pyrocurrent method to determine the magnetic-field-induced electric polarization as a function of temperature for various applied magnetic field strengths. We discover a diagonal magnetoelectric tensor element not previously reported. This new coupling reflects the emergence of an electric polarization along a induced by a magnetic field along the same direction and is consistent with the symmetry-imposed requirements for the small canting components of the magnetic ground state reported for this compound. Our observation is thus further evidence for a ground state which is not supported by the space group Pnma as originally assigned to LiFePO4.

KW - Magnetic symmetry

KW - Magnetoelectric effect

KW - Phase transition

KW - Pyroelectric current

UR - https://www.scopus.com/pages/publications/85139821339

U2 - 10.1016/j.physb.2022.414380

DO - 10.1016/j.physb.2022.414380

M3 - Article

AN - SCOPUS:85139821339

SN - 0921-4526

VL - 648

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

M1 - 414380

ER -

The magnetoelectric effect in LiFePO₄ – revisited

Abstract

Keywords

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