Zobrazeno 1 - 10
of 587
pro vyhledávání: '"Ballou, R"'
Autor:
Tikhanovskii, A. Yu., Ivanov, V. Yu., Kuzmenko, A. M., Stunault, A., Fabelo, O., Ressouche, E., Simonet, V., Ballou, R., Kibalin, I. A., Pimenov, A., Mukhin, A. A., Constable, E.
Publikováno v:
Phys. Rev. B 109, 214433 (2024)
The magnetic properties of Ho-doped langasites (La:Ho)$_3$Ga$_5$SiO$_{14}$ are dominated by the Ising-like magnetic moments of the Ho$^{3+}$ ions. In their saturated regime, the induced magnetic state breaks both time and space inversion symmetries,
Externí odkaz:
http://arxiv.org/abs/2406.18209
Autor:
Alexanian, Y., Saugnier, J., Decorse, C., Robert, J., Ballou, R., Lhotel, E., Debray, J., Gay, F., Simonet, V., de Brion, S.
The possibilities of combining several degrees of freedom inside a unique material have recently been highlighted in their dynamics and proposed as information carriers in quantum devices where their cross-manipulation by external parameters such as
Externí odkaz:
http://arxiv.org/abs/2402.05260
Autor:
Alexanian, Y., Lhotel, E., Ballou, R., Colin, C. V., Klein, H., Priol, A. Le, Museur, F., Robert, J., Pachoud, E., Lejay, P., Hadj-Azzem, A., Fåk, B., Berrod, Q., Zanotti, J. -M., Suard, E., Dejoie, C., de Brion, S., Simonet, V.
Geometrical frustration, as in pyrochlore lattices made of corner-sharing tetrahedra, precludes the onset of conventional magnetic ordering, enabling the stabilization of fluctuating spin states at low temperature. Disorder is a subtle ingredient tha
Externí odkaz:
http://arxiv.org/abs/2303.05483
Publikováno v:
Appl. Phys. Lett. 120, 063102 (2022)
A recent experimental work has reported an excess of the non-linear conductivity in the charge density wave (CDW) sliding mode of the quasi one-dimensional compound (TaSe4)2I, when a magnetic field is applied co-linearly to the electric field [Gooth
Externí odkaz:
http://arxiv.org/abs/2203.08743
Using neutron diffraction under pressure at room temperature, we observed that pyrrhotite undergoes a ferrimagnetic to paramagnetic transition at about 2.8 GPa. Complete demagnetization of remanence at the same pressure is confirmed in an independent
Externí odkaz:
http://hdl.handle.net/10150/623401
http://arizona.openrepository.com/arizona/handle/10150/623401
http://arizona.openrepository.com/arizona/handle/10150/623401
Autor:
Amelin, K., Alexanian, Y., Nagel, U., Room, T., Robert, J., Debray, J., Simonet, V., Decorse, C., Wang, Z., Ballou, R., Constable, E., de Brion, S.
The significance of spin-lattice coupling in the phase diagram of the quantum spin-icepyrochlore Tb2Ti2O7 has been a topic of debate for some time. Here, we focus on the aspect of vibronic coupling, which occurs between the Tb3+ electronic levels and
Externí odkaz:
http://arxiv.org/abs/2009.10545
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
Publikováno v:
Phys. Rev. B 101, 214433 (2020)
Crystal-field (CF) effects on the rare-earth (RE) ions in ferrimagnetic intermetallics NdCo$_5$ and TbCo$_5$ are evaluated using an ab initio density functional + dynamical mean-field theory approach in conjunction with a quasi-atomic approximation f
Externí odkaz:
http://arxiv.org/abs/2004.03945
Autor:
Beauvois, K., Simonet, V., Petit, S., Robert, J., Bourdarot, F., Gospodinov, M., Mukhin, A. A., Ballou, R., Skumryev, V., Ressouche, E.
Publikováno v:
Phys. Rev. Lett. 124, 127202 (2020)
The research field of magnetic frustration is dominated by triangle-based lattices but exotic phenomena can also be observed in pentagonal networks. A peculiar noncollinear magnetic order is indeed known to be stabilized in Bi2Fe4O9 materializing a C
Externí odkaz:
http://arxiv.org/abs/1909.09573
Autor:
Fabreges, X., Petit, S., Brubach, J. B., Roy, P., Deutsch, M., Ivanov, A., Pinsard-Gaudart, L., Simonet, V., Ballou, R., de Brion, S.
Publikováno v:
Phys. Rev. B 100, 094437 (2019)
In the multiferroic hexagonal manganite HoMnO3, inelastic neutron scattering and synchrotron based THz spectroscopy have been used to investigate the spin waves associated to the Mn order together with Ho crystal field excitations. While the Mn order
Externí odkaz:
http://arxiv.org/abs/1903.03009