Zobrazeno 1 - 10
of 468
pro vyhledávání: '"Damay, F."'
Publikováno v:
Phys. Rev. B 107, 134432 (2023)
Motivated by the recent discovery of a semiclassical nematic spin liquid state in a Heisenberg kagom\'e antiferromagnet Li9Fe3(P2O7)3(PO4)2 (LFPO) with S=5/2 [Kermarrec et al. Phys. Rev. Lett. 127, 157202 (2021)], we now investigate the impact of spi
Externí odkaz:
http://arxiv.org/abs/2312.01731
Autor:
Cavichini, A. S., Orlando, M. T., Fantini, M. C. A., Tartaglia, R., Galdino, C. W., Damay, F., Porcher, F., Granado, E.
The Ca$_2$MnReO$_6$ double perovskite is a spin-orbit-assisted Mott insulator with exotic magnetic properties, including a largely non-collinear Mn$^{2+}$ spin arrangement and nearly orthogonal coupling between such spins and the much smaller Re $5d$
Externí odkaz:
http://arxiv.org/abs/2202.08220
Autor:
Léger, M., Lhotel, E., Ressouche, E., Beauvois, K., Damay, F., Paulsen, C., Al-Mawla, A., Suard, E., Hatnean, M. Ciomaga, Balakrishnan, G., Petit, S.
Publikováno v:
Phys. Rev. B 103, 214449 (2021)
By combining neutron scattering and magnetization measurements down to 80 mK, we determine the $(H,T)$ phase diagram of the Nd$_2$(Zr$_{1-x}$Ti$_x$)$_2$O$_7$ pyrochlore magnet compounds. In those samples, Zr is partially substituted by Ti, hence tuni
Externí odkaz:
http://arxiv.org/abs/2105.02128
Autor:
Songvilay, M., Petit, S., Damay, F., Roux, G., Qureshi, N., Walker, H. C., Rodriguez-Rivera, J. A., Gao, B., Cheong, S. -W., Stock, C.
Publikováno v:
Phys. Rev. Lett. 126, 017201 (2021)
We apply neutron spectroscopy to measure the magnetic dynamics in the S=3/2 magnet $\beta$-CaCr$_2$O$_4$ (T$_N$=21 K). The low-energy fluctuations, in the ordered state, resemble large-S linear spin-waves from the incommensurate ground state. However
Externí odkaz:
http://arxiv.org/abs/2012.06314
Kitaev interactions in the Co honeycomb antiferromagnets Na$_3$Co$_2$SbO$_6$ and Na$_2$Co$_2$TeO$_6$
Autor:
Songvilay, M., Robert, J., Petit, S., Rodriguez-Rivera, J. A., Ratcliff, W. D., Damay, F., Balédent, V., Jiménez-Ruiz, M., Lejay, P., Pachoud, E., Hadj-Azzem, A., Simonet, V., Stock, C.
Publikováno v:
Phys. Rev. B 102, 224429 (2020)
Co$^{2+}$ ions in an octahedral crystal field, stabilise a j$_{eff}$ = 1/2 ground state with an orbital degree of freedom and have been recently put forward for realising Kitaev interactions, a prediction we have tested by investigating spin dynamics
Externí odkaz:
http://arxiv.org/abs/2012.00006
Publikováno v:
Phys. Rev. B 102, 020409 (2020)
We report cooperative magnetic orderings in a 6H-perovskite multiferroic system, Ba3HoRu2O9, via comprehensive neutron powder diffraction measurements. This system undergoes long-range antiferromagnetic ordering at TN1 ~ 50 K with a propagation wave
Externí odkaz:
http://arxiv.org/abs/2005.10861
Autor:
Cathelin, V., Lefrançois, E., Robert, J., Guruciaga, P. C., Paulsen, C., Prabhakaran, 1 D., Lejay, P., Damay, F., Ollivier, J., Fåk, B., Chapon, L. C., Ballou, R., Simonet, V., Holdsworth, P. C. W., Lhotel, E.
Publikováno v:
Phys. Rev. Research 2, 032073 (2020)
Neutron scattering, specific heat and magnetisation measurements on both powders and single crystals reveal that Dy$_2$Ir$_2$O$_7$ realizes the fragmented monopole crystal state in which antiferromagnetic order and a Coulomb phase spin liquid co-inha
Externí odkaz:
http://arxiv.org/abs/2005.08807
Akademický článek
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Akademický článek
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Autor:
Lefrançois, E., Mangin-Thro, L., Lhotel, E., Robert, J., Petit, S., Cathelin, V., Fischer, H. E., Colin, C. V., Damay, F., Ollivier, J., Lejay, P., Chapon, L. C., Simonet, V., Ballou, R.
Publikováno v:
Phys. Rev. B 99, 060401 (2019)
The influence of a staggered molecular field in frustrated rare-earth pyrochlores, produced via the magnetic iridium occupying the transition metal site, can generate exotic ground states, such as the fragmentation of the magnetization in the Ho comp
Externí odkaz:
http://arxiv.org/abs/1808.08756