Magnetic phase diagram of magnetoelectric LiMnPO4

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Magnetic phase diagram of magnetoelectric LiMnPO4. / Toft-Petersen, Rasmus; Andersen, Niels Hessel; Li, Haifeng; Li, Jiying; Tian, Wei; Bud'ko, Sergey L.; Jensen, Thomas Bagger Stibius; Niedermayer, Christof; Laver, Mark; Zaharko, Oksana; Lynn, Jeffrey W.; Vaknin, David.

In: Physical Review B (Condensed Matter and Materials Physics), Vol. 85, No. 22, 2012, p. 224415.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Harvard

Toft-Petersen, R, Andersen, NH, Li, H, Li, J, Tian, W, Bud'ko, SL, Jensen, TBS, Niedermayer, C, Laver, M, Zaharko, O, Lynn, JW & Vaknin, D 2012, 'Magnetic phase diagram of magnetoelectric LiMnPO4' Physical Review B (Condensed Matter and Materials Physics), vol 85, no. 22, pp. 224415., 10.1103/PhysRevB.85.224415

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Author

Toft-Petersen, Rasmus; Andersen, Niels Hessel; Li, Haifeng; Li, Jiying; Tian, Wei; Bud'ko, Sergey L.; Jensen, Thomas Bagger Stibius; Niedermayer, Christof; Laver, Mark; Zaharko, Oksana; Lynn, Jeffrey W.; Vaknin, David / Magnetic phase diagram of magnetoelectric LiMnPO4.

In: Physical Review B (Condensed Matter and Materials Physics), Vol. 85, No. 22, 2012, p. 224415.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{6891e914b45940d2833673cb26e49bd9,
title = "Magnetic phase diagram of magnetoelectric LiMnPO4",
keywords = "PHYSICS,, SPIN-FLOP, TETRACRITICAL POINTS, WEAK FERROMAGNETISM, SINGLE-CRYSTAL, FERROELECTRICITY, ANTIFERROMAGNET, SCATTERING",
publisher = "American Physical Society",
author = "Rasmus Toft-Petersen and Andersen, {Niels Hessel} and Haifeng Li and Jiying Li and Wei Tian and Bud'ko, {Sergey L.} and Jensen, {Thomas Bagger Stibius} and Christof Niedermayer and Mark Laver and Oksana Zaharko and Lynn, {Jeffrey W.} and David Vaknin",
year = "2012",
doi = "10.1103/PhysRevB.85.224415",
volume = "85",
number = "22",
pages = "224415",
journal = "Physical Review B (Condensed Matter and Materials Physics)",
issn = "1098-0121",

}

RIS

TY - JOUR

T1 - Magnetic phase diagram of magnetoelectric LiMnPO<sub>4</sub>

A1 - Toft-Petersen,Rasmus

A1 - Andersen,Niels Hessel

A1 - Li,Haifeng

A1 - Li,Jiying

A1 - Tian,Wei

A1 - Bud'ko,Sergey L.

A1 - Jensen,Thomas Bagger Stibius

A1 - Niedermayer,Christof

A1 - Laver,Mark

A1 - Zaharko,Oksana

A1 - Lynn,Jeffrey W.

A1 - Vaknin,David

AU - Toft-Petersen,Rasmus

AU - Andersen,Niels Hessel

AU - Li,Haifeng

AU - Li,Jiying

AU - Tian,Wei

AU - Bud'ko,Sergey L.

AU - Jensen,Thomas Bagger Stibius

AU - Niedermayer,Christof

AU - Laver,Mark

AU - Zaharko,Oksana

AU - Lynn,Jeffrey W.

AU - Vaknin,David

PB - American Physical Society

PY - 2012

Y1 - 2012

N2 - <p>The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO<sub>4</sub> is studied in fields applied along the a axis. A refinement of the magnetic structure using neutron diffraction data in the SF phase reveals that the spins reorient from being parallel to the a axis to be nearly along the c axis at magnetic fields between 4 and 4.7 T, depending on temperature. The low-field antiferromagnetic phase boundary is shown to join the spin-flop line tangentially at the so-called bicritical point, where there is a suppression of the ordering temperature. At the bicritical field, we observe an increased intensity of the Lorentz broadened elastic scattering at magnetic Bragg peaks above T<sub><em>N</em></sub> as compared to zero field and 10 T, without an increase in peak width. This suggests an increased <em>density</em> of fluctuations at the bicritical field as compared to zero field.</p>

AB - <p>The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO<sub>4</sub> is studied in fields applied along the a axis. A refinement of the magnetic structure using neutron diffraction data in the SF phase reveals that the spins reorient from being parallel to the a axis to be nearly along the c axis at magnetic fields between 4 and 4.7 T, depending on temperature. The low-field antiferromagnetic phase boundary is shown to join the spin-flop line tangentially at the so-called bicritical point, where there is a suppression of the ordering temperature. At the bicritical field, we observe an increased intensity of the Lorentz broadened elastic scattering at magnetic Bragg peaks above T<sub><em>N</em></sub> as compared to zero field and 10 T, without an increase in peak width. This suggests an increased <em>density</em> of fluctuations at the bicritical field as compared to zero field.</p>

KW - PHYSICS,

KW - SPIN-FLOP

KW - TETRACRITICAL POINTS

KW - WEAK FERROMAGNETISM

KW - SINGLE-CRYSTAL

KW - FERROELECTRICITY

KW - ANTIFERROMAGNET

KW - SCATTERING

U2 - 10.1103/PhysRevB.85.224415

DO - 10.1103/PhysRevB.85.224415

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

SN - 1098-0121

IS - 22

VL - 85

SP - 224415

ER -