%0 Journal Article %1 PhysRevB.99.184437 %A Bettler, S. %A Landolt, F. %A Aksoy, Omer M. %A Yan, Z. %A Gvasaliya, S. %A Qiu, Y. %A Ressouche, E. %A Beauvois, K. %A Raymond, S. %A Ponomaryov, A. N. %A Zvyagin, S. A. %A Zheludev, A. %D 2019 %I American Physical Society %J Phys. Rev. B %K B %N 18 %P 184437 %R 10.1103/PhysRevB.99.184437 %T Magnetic structure and spin waves in the frustrated ferro-antiferromagnet Pb$_2$VO(PO$_4$)$_2$ %U https://link.aps.org/doi/10.1103/PhysRevB.99.184437 %V 99 %X Single crystal neutron diffraction, inelastic neutron scattering, and electron spin resonance experiments are used to study the magnetic structure and spin waves in $Pb_2VO(PO_4)_2$, a prototypical layered S=1/2 ferromagnet with frustrating next-nearest neighbor antiferromagnetic interactions. The observed excitation spectrum is found to be inconsistent with a simple square lattice model previously proposed for this material. At least four distinct exchange coupling constants are required to reproduce the measured spin wave dispersion. The degree of magnetic frustration is correspondingly revised and found to be substantially smaller than in all previous estimates.

@article{PhysRevB.99.184437, abstract = {Single crystal neutron diffraction, inelastic neutron scattering, and electron spin resonance experiments are used to study the magnetic structure and spin waves in $Pb_2VO(PO_4)_2$, a prototypical layered S=1/2 ferromagnet with frustrating next-nearest neighbor antiferromagnetic interactions. The observed excitation spectrum is found to be inconsistent with a simple square lattice model previously proposed for this material. At least four distinct exchange coupling constants are required to reproduce the measured spin wave dispersion. The degree of magnetic frustration is correspondingly revised and found to be substantially smaller than in all previous estimates.}, added-at = {2019-08-14T11:16:29.000+0200}, author = {Bettler, S. and Landolt, F. and Aksoy, Omer M. and Yan, Z. and Gvasaliya, S. and Qiu, Y. and Ressouche, E. and Beauvois, K. and Raymond, S. and Ponomaryov, A. N. and Zvyagin, S. A. and Zheludev, A.}, biburl = {https://www.bibsonomy.org/bibtex/2914fc7a03291394a5cf9214c1c0db47d/ctqmat}, day = 28, description = {Phys. Rev. B 99, 184437 (2019) - Magnetic structure and spin waves in the frustrated ferro-antiferromagnet ${\mathrm{Pb}}_{2}\mathrm{VO}{({\mathrm{PO}}_{4})}_{2}$}, doi = {10.1103/PhysRevB.99.184437}, interhash = {9f63c745119532a4cd051ab4f06cd21a}, intrahash = {914fc7a03291394a5cf9214c1c0db47d}, journal = {Phys. Rev. B}, keywords = {B}, month = {05}, number = 18, numpages = {6}, pages = 184437, publisher = {American Physical Society}, timestamp = {2023-11-29T11:30:24.000+0100}, title = {Magnetic structure and spin waves in the frustrated ferro-antiferromagnet Pb$_{\mathbf{2}}$VO(PO$_{\mathbf{4}}$)$_{\mathbf{2}}$}, url = {https://link.aps.org/doi/10.1103/PhysRevB.99.184437}, volume = 99, year = 2019 }