Abstract:
The spectrum of spin fluctuations in the stacked-triangular antiferromagnet YMnO$_3$ was studied above the Néel temperature using both unpolarized and polarized inelastic neutron scattering. We find an in-plane and an out-of-plane excitation. The in-plane mode has two components just above T$_N$, a resolution-limited central peak and a Debye-like contribution. The quasi-elastic fluctuations have a line-width that increases with $q$ like $Dq^z$ and the dynamical exponent $z=2.3$. The out-of-plane fluctuations have a gap at the magnetic zone center and do not show any appreciable $q$-dependence at small wave-vectors.
Citation:
B. Roessli, S. N. Gvasaliya, E. Pomjakushina, K. Conder, “Spin fluctuations in the stacked-triangular antiferromagnet YMnO$_3$”, Pis'ma v Zh. Èksper. Teoret. Fiz., 81:6 (2005), 351–355; JETP Letters, 81:6 (2005), 287–291
This publication is cited in the following 24 articles:
Jakob Lass, Emma Y. Lenander, Kristine M. L. Krighaar, Tara N. Tošić, Dharmalingam Prabhakaran, Pascale P. Deen, Sofie Holm-Janas, Kim Lefmann, Phys. Rev. B, 110:14 (2024)
Rohit Singh, Sanjay Puri, J. Stat. Mech., 2023:3 (2023), 033206
S. Yano, Chin-Wei Wang, Jason S. Gardner, Wei-Tin Chen, Kazuki Iida, R. A. Mole, Despina Louca, Phys. Rev. B, 107:21 (2023)
Kishore Dutta, Dhritiman Talukdar, Journal of Magnetism and Magnetic Materials, 556 (2022), 169344
Janas S., Lass J., Tutueanu A.-E., Haubro M.L., Niedermayer Ch., Stuhr U., Xu G., Prabhakaran D., Deen P.P., Holm-Dahlin S., Lefmann K., Phys. Rev. Lett., 126:10 (2021), 107203
Kuerten L., Krohns S., Schoenherr P., Holeczek K., Pomjakushina E., Lottermoser T., Trassin M., Meier D., Fiebig M., Phys. Rev. B, 102:9 (2020), 094108
Abdel-Latif I.A., J. Nanopart. Res., 22:2 (2020), 45
Cho K. Kim H. Park S., Appl. Phys. Lett., 116:20 (2020)
Singh R., Nandy M.K., J. Stat. Mech.-Theory Exp., 2018, 023206
Holm S.L., Kreisel A., Schaeffer T.K., Bakke A., Bertelsen M., Hansen U.B., Retuerto M., Larsen J., Prabhakaran D., Deen P.P., Yamani Z., Birk J.O., Stuhr U., Niedermayer Ch., Fennell A.L., Andersen B.M., Lefmann K., Phys. Rev. B, 97:13 (2018), 134304
Sonja Holm-Dahlin, Sofie Janas, Andreas Kreisel, Ekaterina Pomjakushina, Jonathan White, Amy Fennell, Kim Lefmann, QuBS, 2:3 (2018), 16
Meier Q.N., Lilienblum M., Griffin S.M., Conder K., Pomjakushina E., Yan Z., Bourret E., Meier D., Lichtenberg F., Salje E.K.H., Spaldin N.A., Fiebig M., Cano A., Phys. Rev. X, 7:4 (2017), 041014
Yano Sh.-i., Louca D., Chi S., Matsuda M., Qiu Y., Copley J.R.D., Cheong S.-W., J. Phys. Soc. Jpn., 83:2 (2014), 024601
Wang W., Zhao J., Wang W., Gai Zh., Balke N., Chi M., Lee H.N., Tian W., Zhu L., Cheng X., Keavney D.J., Yi J., Ward T.Z., Snijders P.C., Christen H.M., Wu W., Shen J., Xu X., Phys. Rev. Lett., 110:23 (2013), 237601
Bahoosh S.G., Wesselinowa J.M., Phys. Status Solidi B-Basic Solid State Phys., 249:11 (2012), 2227–2230
Pawlak A., Erdem R., Physical Review B, 83:9 (2011), 094415