Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Giblin, S R"'
Autor:
Billington, D., Riordan, E., Cafolla-Ward, C., Wilson, J., Lhotel, E., Paulsen, C., Prabhakaran, D., Bramwell, S. T., Flicker, F., Giblin, S. R.
Magnetization noise measurements on the spin ice Dy${}_2$Ti${}_2$O${}_7$ have revealed a remarkable `pink noise' power spectrum $S(f,T)$ below 4 K, including evidence of magnetic monopole excitations diffusing in a fractal landscape. However, at high
Externí odkaz:
http://arxiv.org/abs/2412.04376
Autor:
Morineau, F., Cathelin, V., Holdsworth, P. C. W., Giblin, S. R., Balakhrishnan, G., Matsuhira, K., Paulsen, C., Lhotel, E.
We test the fluctuation-dissipation relation (FDR) in spin ice materials Dy$_2$Ti$_2$O$_7$ and Ho$_2$Ti$_2$O$_7$ by measuring both the magnetic noise and the out-of-phase part of the susceptibility and comparing their ratio. We show that it is satisf
Externí odkaz:
http://arxiv.org/abs/2410.12548
Autor:
Giles-Donovan, N., Hillier, A. D., Ishida, K., Hampshire, B. V., Giblin, S. R., Roessli, B., Gehring, P. M., Xu, G., Li, X., Luo, H., Cochran, S., Stock, C.
Publikováno v:
J. Phys.: Condens. Matter 36 435802 (2024)
Relaxor-ferroelectrics display exceptional dielectric properties resulting from the underlying random dipolar fields induced by strong chemical inhomogeneity. An unusual structural aspect of relaxors is a skin-effect where the near-surface region in
Externí odkaz:
http://arxiv.org/abs/2407.11227
Publikováno v:
Communications Physics volume 6, Article number: 217 (2023)
Artificial spin-ices consist of lithographic arrays of single-domain magnetic nanowires organised into frustrated lattices. These geometries are usually two-dimensional, allowing a direct exploration of physics associated with frustration, topology a
Externí odkaz:
http://arxiv.org/abs/2211.04551
Autor:
Tula, T., Möller, G., Quintanilla, J., Giblin, S. R., Hillier, A. D., McCabe, E. E., Ramos, S., Barker, D. S., Gibson, S.
Publikováno v:
J. Phys.: Conf. Ser. 2164, 012018 (2022)
Machine learning (ML) methods have proved to be a very successful tool in physical sciences, especially when applied to experimental data analysis. Artificial intelligence is particularly good at recognizing patterns in high dimensional data, where i
Externí odkaz:
http://arxiv.org/abs/2112.09601
Autor:
Billington, D., Paulsen, C., Lhotel, E., Cannon, J., Riordan, E., Salman, M., Klemencic, G., Cafolla-Ward, C., Prabhakaran, D., Giblin, S. R., Bramwell, S. T.
Publikováno v:
Phys. Rev. B 104, 014418 (2021)
The isolated susceptibility $\chi_{\rm I}$ may be defined as a (non-thermodynamic) average over the canonical ensemble, but while it has often been discussed in the literature, it has not been clearly measured. Here, we demonstrate an unambiguous mea
Externí odkaz:
http://arxiv.org/abs/2102.11969
Autor:
Klemencic, G. M., Perkins, D. T. S., Fellows, J. M., Muirhead, C. M., Smith, R. A., Mandal, S., Manifold, S., Salman, M., Giblin, S. R., Williams, O. A.
A phase slip is a localized disturbance in the coherence of a superconductor allowing an abrupt 2$\pi$ phase shift. Phase slips are a ubiquitous feature of one-dimensional superconductors and also have an analogue in two-dimensions. Here we present e
Externí odkaz:
http://arxiv.org/abs/2101.01685
Autor:
Edwards, L., Lane, H., Arevalo-Lopez, A. M., Songvilay, M., Pachoud, E., Niedermayer, Ch., Tucker, G., Manuel, P., Paulsen, C., Lhotel, E., Attfield, J. P., Giblin, S. R., Stock, C.
$\alpha$-CoV$_{2}$O$_{6}$ consists of $j_{\mathrm{eff}}={1 \over 2}$ Ising spins located on an anisotropic triangular motif with magnetization plateaus in an applied field. We combine neutron diffraction with low temperature magnetization to investig
Externí odkaz:
http://arxiv.org/abs/2010.14097
Autor:
Tula, T., Möller, G., Quintanilla, J., Giblin, S. R., Hillier, A. D., McCabe, E. E., Ramos, S., Barker, D. S., Gibson, S.
In recent years, Artificial Intelligence techniques have proved to be very successful when applied to problems in physical sciences. Here we apply an unsupervised Machine Learning (ML) algorithm called Principal Component Analysis (PCA) as a tool to
Externí odkaz:
http://arxiv.org/abs/2010.04742
Autor:
Billington, D., James, A. D. N., Harris-Lee, E. I., Lagos, D. A., ONeill, D., Tsuda, N., Toyoki, K., Kotani, Y., Nakamura, T., Bei, H., Mu, S., Samolyuk, G. D., Stocks, G. M., Duffy, J. A., Taylor, J. W., Giblin, S. R., Dugdale, S. B.
Publikováno v:
Phys. Rev. B 102, 174405 (2020)
Magnetic Compton scattering, x-ray magnetic circular dichroism spectroscopy and bulk magnetometry measurements are performed on a set of medium (NiFeCo and NiFeCoCr) and high (NiFeCoCrPd and NiFeCoCrMn) entropy Cantor-Wu alloys. The bulk spin momentu
Externí odkaz:
http://arxiv.org/abs/2008.05796