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. DOI: 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",
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",
pages = "224415",
journal = "Physical Review B (Condensed Matter and Materials Physics)",
issn = "1098-0121",
publisher = "American Physical Society",
number = "22",

}

RIS

TY - JOUR

T1 - Magnetic phase diagram of magnetoelectric LiMnPO4

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

PY - 2012

Y1 - 2012

N2 - The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO4 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 TN as compared to zero field and 10 T, without an increase in peak width. This suggests an increased density of fluctuations at the bicritical field as compared to zero field.

AB - The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO4 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 TN as compared to zero field and 10 T, without an increase in peak width. This suggests an increased density of fluctuations at the bicritical field as compared to zero field.

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

M3 - Journal article

VL - 85

SP - 224415

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

T2 - Physical Review B (Condensed Matter and Materials Physics)

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

SN - 1098-0121

IS - 22

ER -