Zobrazeno 1 - 10
of 232
pro vyhledávání: '"Frost, C. D."'
Autor:
Schueler, J., Araújo, H. M., Balashov, S. N., Borg, J. E., Brew, C., Brunbauer, F. M., Cazzaniga, C., Cottle, A., Frost, C. D., Garcia, F., Hunt, D., Kaboth, A. C., Kastriotou, M., Katsioulas, I., Khazov, A., Knights, P., Kraus, H., Kudryavtsev, V. A., Lilley, S., Lindote, A., Lisowska, M., Loomba, D., Lopes, M. I., Asamar, E. Lopez, Dapica, P. Luna, Majewski, P. A., Marley, T., McCabe, C., Millins, L., Mills, A. F., Nakhostin, M., Nandakumar, R., Neep, T., Neves, F., Nikolopoulos, K., Oliveri, E., Ropelewski, L., Solovov, V. N., Sumner, T. J., Tarrant, J., Tilly, E., Turnley, R., Veenhof, R.
Deep learning-based object detection algorithms enable the simultaneous classification and localization of any number of objects in image data. Many of these algorithms are capable of operating in real-time on high resolution images, attributing to t
Externí odkaz:
http://arxiv.org/abs/2406.07538
Autor:
Petsch, A. N., Headings, N. S., Prabhakaran, D., Kolesnikov, A. I., Frost, C. D., Boothroyd, A. T., Coldea, R., Hayden, S. M.
Publikováno v:
Phys. Rev. Research 5, 033113 (2023)
Inelastic neutron scattering is used to study the magnetic excitations of the $S=1$ square-lattice antiferromagnet La$_2$NiO$_4$. We find that the spin waves cannot be described by a simple classical (harmonic) Heisenberg model with only nearest-neig
Externí odkaz:
http://arxiv.org/abs/2304.02546
Autor:
Araújo, H. M., Balashov, S. N., Borg, J. E., Brunbauer, F. M., Cazzaniga, C., Frost, C. D., Garcia, F., Kaboth, A. C., Kastriotou, M., Katsioulas, I., Khazov, A., Kraus, H., Kudryavtsev, V. A., Lilley, S., Lindote, A., Loomba, D., Lopes, M. I., Asamar, E. Lopez, Dapica, P. Luna, Majewski, P. A., Marley, T., McCabe, C., Mills, A. F., Nakhostin, M., Neep, T., Neves, F., Nikolopoulos, K., Oliveri, E., Ropelewski, L., Tilly, E., Solovov, V. N., Sumner, T. J., Tarrant, J., Turnley, R., van der Grinten, M. G. D., Veenhof, R.
We present the Migdal In Galactic Dark mAtter expLoration (MIGDAL) experiment aiming at the unambiguous observation and study of the so-called Migdal effect induced by fast-neutron scattering. It is hoped that this elusive atomic process can be explo
Externí odkaz:
http://arxiv.org/abs/2207.08284
Autor:
Chiesa, D., Cazzaniga, C., Nastasi, M., Rebai, M., Frost, C. D., Gorini, G., Lilley, S., Pozzi, S., Previtali, E.
An accurate characterization of the neutron fields at spallation sources is crucial for many applications based on neutron irradiations, such as radiation damage tests that need a precise dose estimate. In this work we present the neutron flux measur
Externí odkaz:
http://arxiv.org/abs/2110.05073
Publikováno v:
J. Appl. Cryst. (2021). 54, 957 (2021)
An instrument and software algorithm is described for the purpose of characterization of large single crystals at the Alignment Facility (ALF) of the ISIS spallation neutron source. We describe a method for both characterizing the quality of the samp
Externí odkaz:
http://arxiv.org/abs/2104.10137
Autor:
Wan, W., Christensen, N. B., Sandvik, A. W., Tregenna-Piggott, P., Nilsen, G. J., Mourigal, M., Perring, T. G., Frost, C. D., McMorrow, D. F., Rønnow, H. M.
It is well established that in the low-temperature limit, the two-dimensional quantum Heisenberg antiferromagnet on a square lattice (2DQHAFSL) exhibits an anomaly in its spectrum at short-wavelengths on the zone-boundary. In the vicinity of the $(\p
Externí odkaz:
http://arxiv.org/abs/1912.01364
Autor:
Sarte, P. M., Songvilay, M., Pachoud, E., Ewings, R. A., Frost, C. D., Prabhakaran, D., Hong, K. H., Browne, A. J., Yamani, Z., Attfield, J. P., Rodriguez, E. E., Wilson, S. D., Stock, C.
Publikováno v:
Phys. Rev. B 100, 075143 (2019)
CoO has an odd number of electrons in its unit cell, and therefore is expected to be metallic. Yet, CoO is strongly insulating owing to significant electronic correlations, thus classifying it as a Mott insulator. We investigate the magnetic fluctuat
Externí odkaz:
http://arxiv.org/abs/1908.00459
Autor:
Sarte, P. M., Cowley, R. A., Rodriguez, E. E., Pachoud, E., Le, D., Garcia-Sakai, V., Taylor, J. W., Frost, C. D., Prabhakaran, D., MacEwen, C., Kitada, A., Browne, A. J., Songvilay, M., Yamani, Z., Buyers, W. J. L., Attfield, J. P., Stock, C.
Publikováno v:
Phys. Rev. B 98, 024415 (2018)
Neutron spectroscopy was applied to study the magnetic interactions of orbitally degenerate Co$^{2+}$ on a host MgO rocksalt lattice where no long range spin or orbital order exists. The paramagnetic nature of the substituted monoxide Co$_{0.03}$Mg$_
Externí odkaz:
http://arxiv.org/abs/1807.05012
Autor:
Gaw, S. M., Andrade, E. C., Vojta, M., Frost, C. D., Adroja, D. T., Prabhakaran, D., Boothroyd, A. T.
Publikováno v:
Phys. Rev. B 88 165121 (2013)
We report inelastic neutron scattering results that reveal an hour-glass magnetic excitation spectrum in La1.75Sr0.25CoO4. The magnetic spectrum is similar to that observed previously in La1.67Sr0.33CoO4, but the spectral features are broader. We sho
Externí odkaz:
http://arxiv.org/abs/1308.2141
Autor:
Lake, B., Tennant, D. A., Caux, J. -S., Barthel, T., Schollwöck, U., Nagler, S. E., Frost, C. D.
Publikováno v:
Physical Review Letters 111, 137205 (2013)
The space- and time-dependent response of many-body quantum systems is the most informative aspect of their emergent behaviour. The dynamical structure factor, experimentally measurable using neutron scattering, can map this response in wavevector an
Externí odkaz:
http://arxiv.org/abs/1307.4071