Zobrazeno 1 - 10
of 664
pro vyhledávání: '"GINGRAS, M. J. P."'
Autor:
Bergeron, P., Wesemael, F., Fontaine, G., Lamontagne, R., Demers, S., Bédard, A., Gingras, M. -J., Blouin, S., Irwin, M. J., Kepler, S. O.
We present optical spectra of 144 white dwarfs detected in the Montreal-Cambridge-Tololo (MCT) colorimetric survey, including 120 DA, 12 DB, 4 DO, 1 DQ, and 7 DC stars. We also perform a model atmosphere analysis of all objects in our sample using th
Externí odkaz:
http://arxiv.org/abs/2108.13520
Autor:
Yahne, D. R., Pereira, D., Jaubert, L. D. C., Sanjeewa, L. D., Powell, M., Kolis, J. W., Xu, Guangyong, Enjalran, M., Gingras, M. J. P., Ross, K. A.
Reentrance, the return of a system from an ordered phase to a previously encountered less-ordered one as a controlled parameter is continuously varied, is a recurring theme found in disparate physical systems, from condensed matter to black holes. Wh
Externí odkaz:
http://arxiv.org/abs/2101.08361
Autor:
Hallas, A. M., Jin, W., Gaudet, J., Tonita, E. M., Pomaranski, D., Buhariwalla, C. R. C., Tachibana, M., Butch, N. P., Calder, S., Stone, M. B., Luke, G. M., Wiebe, C. R., Kycia, J. B., Gingras, M. J. P., Gaulin, B. D.
We present a comprehensive experimental and theoretical study of the pyrochlore Tb$_2$Ge$_2$O$_7$, an exemplary realization of a material whose properties are dominated by competition between magnetic dipolar and electric quadrupolar correlations. Th
Externí odkaz:
http://arxiv.org/abs/2009.05036
Autor:
Martz, C. G., McNamara, B. R., Nulsen, P. E. J., Vantyghem, A. N., Gingras, M-J., Babyk, Iu. V., Russell, H. R., Edge, A. C., McDonald, M., Tamhane, P. D., Fabian, A. C., Hogan, M. T.
We analyzed Chandra X-ray observations of five galaxy clusters whose atmospheric cooling times, entropy parameters, and cooling time to free-fall time ratios within the central galaxies lie below 1 Gyr, below 30 keV cm^2, and between 20 < tcool/tff <
Externí odkaz:
http://arxiv.org/abs/2003.11104
Autor:
Sarkis, C. L., Rau, J. G., Sanjeewa, L. D., Powell, M., Kolis, J., Marbey, J., Hill, S., Rodriguez-Rivera, J. A., Nair, H. S., Yahne, D. R., Säubert, S., Gingras, M. J. P., Ross, K. A.
Publikováno v:
Phys. Rev. B 102, 134418 (2020)
We report inelastic neutron scattering measurements from our newly synthesized single crystals of the structurally metastable antiferromagnetic pyrochlore Yb$_{2}$Ge$_{2}$O$_{7}$. We determine the four symmetry-allowed nearest-neighbor anisotropic ex
Externí odkaz:
http://arxiv.org/abs/1912.09448
Autor:
Rau, J. G., Wu, L. S., May, A. F., Taylor, A. E., Liu, I-Lin, Higgins, J., Butch, N. P., Ross, K. A., Nair, H. S., Lumsden, M. D., Gingras, M. J. P., Christianson, A. D.
Publikováno v:
J. Phys.: Condens. Matter 30, 455801 (2018)
The breathing pyrochlore lattice material Ba$_3$Yb$_2$Zn$_5$O$_{11}$ exists in the nearly decoupled limit, in contrast to most other well-studied breathing pyrochlore compounds. As a result, it constitutes a useful platform to benchmark theoretical c
Externí odkaz:
http://arxiv.org/abs/1809.05131
Autor:
Bovo, L., Twengström, M., Petrenko, O. A., Fennell, T., Gingras, M. J. P., Bramwell, S. T., Henelius, P.
Publikováno v:
Nature Communications 9 (2018) 1999
The description and detection of unconventional magnetic states such as spin liquids is a recurring topic in condensed matter physics. While much of the efforts have traditionally been directed at geometrically frustrated antiferromagnets, recent stu
Externí odkaz:
http://arxiv.org/abs/1805.09332
Publikováno v:
Phys. Rev. Lett. 118, 207206 (2017)
Motivated by recent realizations of Dy$_{2}$Ti$_{2}$O$_{7}$ and Ho$_{2}$Ti$_{2}$O$_{7}$ spin ice thin films, and more generally by the physics of confined gauge fields, we study a model of spin ice thin film with surfaces perpendicular to the $[001]$
Externí odkaz:
http://arxiv.org/abs/1608.08635
Autor:
Achkar, A. J., Zwiebler, M., McMahon, Christopher, He, F., Sutarto, R., Djianto, Isaiah, Hao, Zhihao, Gingras, M. J. P., Hücker, M., Gu, G. D., Revcolevschi, A., Zhang, H., Kim, Y. -J., Geck, J., Hawthorn, D. G.
Publikováno v:
Science 351, 576 (2016)
In underdoped cuprate superconductors, a rich competition occurs between superconductivity and charge density wave (CDW) order. Whether rotational symmetry breaking (nematicity) occurs intrinsically and generically or as a consequence of other orders
Externí odkaz:
http://arxiv.org/abs/1602.02171
Autor:
Rau, J. G., Wu, L. S., May, A. F., Poudel, L., Winn, B., Garlea, V. O., Huq, A., Whitfield, P., Taylor, A. E., Lumsden, M. D., Gingras, M. J. P., Christianson, A. D.
Publikováno v:
Phys. Rev. Lett. 116, 257204 (2016)
The low energy spin excitation spectrum of the breathing pyrochlore Ba3Yb2Zn5O11 has been investigated with inelastic neutron scattering. Several nearly resolution limited modes with no observable dispersion are observed at 250 mK while, at elevated
Externí odkaz:
http://arxiv.org/abs/1601.04104