Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4

Research output: Contribution to journalArticlepeer-review

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Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4. / Toft-Petersen, Rasmus; Reehuis, Manfred; Jensen, Thomas B S; Andersen, Niels H.; Li, Jiying; Le, Manh Duc; Laver, Mark; Niedermayer, Christof; Klemke, Bastian; Lefmann, Kim; Vaknin, David.

In: Physical Review B, Vol. 92, No. 2, 024404, 06.07.2015.

Research output: Contribution to journalArticlepeer-review

Harvard

Toft-Petersen, R, Reehuis, M, Jensen, TBS, Andersen, NH, Li, J, Le, MD, Laver, M, Niedermayer, C, Klemke, B, Lefmann, K & Vaknin, D 2015, 'Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4', Physical Review B, vol. 92, no. 2, 024404. https://doi.org/10.1103/PhysRevB.92.024404

APA

Toft-Petersen, R., Reehuis, M., Jensen, T. B. S., Andersen, N. H., Li, J., Le, M. D., Laver, M., Niedermayer, C., Klemke, B., Lefmann, K., & Vaknin, D. (2015). Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4. Physical Review B, 92(2), [024404]. https://doi.org/10.1103/PhysRevB.92.024404

Vancouver

Toft-Petersen R, Reehuis M, Jensen TBS, Andersen NH, Li J, Le MD et al. Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4. Physical Review B. 2015 Jul 6;92(2). 024404. https://doi.org/10.1103/PhysRevB.92.024404

Author

Toft-Petersen, Rasmus ; Reehuis, Manfred ; Jensen, Thomas B S ; Andersen, Niels H. ; Li, Jiying ; Le, Manh Duc ; Laver, Mark ; Niedermayer, Christof ; Klemke, Bastian ; Lefmann, Kim ; Vaknin, David. / Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4. In: Physical Review B. 2015 ; Vol. 92, No. 2.

Bibtex

@article{9a9452f683134306b3500059974849cc,
title = "Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4",
abstract = "We report significant details of the magnetic structure and spin dynamics of LiFePO4 obtained by single-crystal neutron scattering. Our results confirm a previously reported collinear rotation of the spins away from the principal b axis, and they determine that the rotation is toward the a axis. In addition, we find a significant spin-canting component along c. The possible causes of these components are discussed, and their significance for the magnetoelectric effect is analyzed. Inelastic neutron scattering along the three principal directions reveals a highly anisotropic hard plane consistent with earlier susceptibility measurements. Using a spin Hamiltonian, we show that the spin dimensionality is intermediate between XY- and Ising-like, with an easy b axis and a hard c axis. It is shown that both next-nearest neighbor exchange couplings in the bc plane are in competition with the strongest nearest neighbor coupling.",
author = "Rasmus Toft-Petersen and Manfred Reehuis and Jensen, {Thomas B S} and Andersen, {Niels H.} and Jiying Li and Le, {Manh Duc} and Mark Laver and Christof Niedermayer and Bastian Klemke and Kim Lefmann and David Vaknin",
year = "2015",
month = jul,
day = "6",
doi = "10.1103/PhysRevB.92.024404",
language = "English",
volume = "92",
journal = "Physical Review B",
issn = "1098-0121",
publisher = "American Physical Society (APS)",
number = "2",

}

RIS

TY - JOUR

T1 - Anomalous magnetic structure and spin dynamics in magnetoelectric LiFePO4

AU - Toft-Petersen, Rasmus

AU - Reehuis, Manfred

AU - Jensen, Thomas B S

AU - Andersen, Niels H.

AU - Li, Jiying

AU - Le, Manh Duc

AU - Laver, Mark

AU - Niedermayer, Christof

AU - Klemke, Bastian

AU - Lefmann, Kim

AU - Vaknin, David

PY - 2015/7/6

Y1 - 2015/7/6

N2 - We report significant details of the magnetic structure and spin dynamics of LiFePO4 obtained by single-crystal neutron scattering. Our results confirm a previously reported collinear rotation of the spins away from the principal b axis, and they determine that the rotation is toward the a axis. In addition, we find a significant spin-canting component along c. The possible causes of these components are discussed, and their significance for the magnetoelectric effect is analyzed. Inelastic neutron scattering along the three principal directions reveals a highly anisotropic hard plane consistent with earlier susceptibility measurements. Using a spin Hamiltonian, we show that the spin dimensionality is intermediate between XY- and Ising-like, with an easy b axis and a hard c axis. It is shown that both next-nearest neighbor exchange couplings in the bc plane are in competition with the strongest nearest neighbor coupling.

AB - We report significant details of the magnetic structure and spin dynamics of LiFePO4 obtained by single-crystal neutron scattering. Our results confirm a previously reported collinear rotation of the spins away from the principal b axis, and they determine that the rotation is toward the a axis. In addition, we find a significant spin-canting component along c. The possible causes of these components are discussed, and their significance for the magnetoelectric effect is analyzed. Inelastic neutron scattering along the three principal directions reveals a highly anisotropic hard plane consistent with earlier susceptibility measurements. Using a spin Hamiltonian, we show that the spin dimensionality is intermediate between XY- and Ising-like, with an easy b axis and a hard c axis. It is shown that both next-nearest neighbor exchange couplings in the bc plane are in competition with the strongest nearest neighbor coupling.

UR - http://www.scopus.com/inward/record.url?scp=84937847664&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.92.024404

DO - 10.1103/PhysRevB.92.024404

M3 - Article

AN - SCOPUS:84937847664

VL - 92

JO - Physical Review B

JF - Physical Review B

SN - 1098-0121

IS - 2

M1 - 024404

ER -