Zobrazeno 41 - 50
of 7 834
pro vyhledávání: '"Gardner, J."'
Autor:
Silverstein, H. J., Fritsch, K., Flicker, F., Hallas, A. M., Gardner, J. S., Qiu, Y., Ehlers, G., Savici, A. T., Yamani, Z., Ross, K. A., Gaulin, B. D., Gingras, M. J. P., Paddison, J. A. M., Foyevtsova, K., Valenti, R., Hawthorne, F., Wiebe, C. R., Zhou, H. D.
Publikováno v:
H. J. Silverstein et al. (2014) Phys. Rev. B 89, 054433
The spin glass behavior of Y2Mo2O7 has puzzled physicists for nearly three decades. Free of bulk disorder within the resolution of powder diffraction methods, it is thought that this material is a rare realization of a spin glass resulting from weak
Externí odkaz:
http://arxiv.org/abs/1305.1274
Publikováno v:
Phys. Rev. Lett. 108, 257204 (2012)
We report vibrating coil magnetometry of the spin ice system Ho2Ti2O7 down to ~0.04 K for magnetic fields up to 5 T applied parallel to the [111] axis. History dependent behavior emerges below T*_0 ~ 0.6 K near zero magnetic field, in common with oth
Externí odkaz:
http://arxiv.org/abs/1206.5089
Autor:
Greenhouse, M. A., Benson, S. W., Falck, R. D., Fixsen, D. J., Gardner, J. P., Garvin, J. B., Kruk, J. W., Oleson, S. R., Thronson, H. A.
We describe a mission architecture designed to substantially increase the science capability of the NASA Science Mission Directorate (SMD) Astrophysics Explorer Program for all AO proposers working within the near-UV to far-infrared spectrum. We have
Externí odkaz:
http://arxiv.org/abs/1206.1886
Autor:
Klimczuk, T., Wang, C. H., Lawrence, J. M., Xu, Q., Durakiewicz, T., Ronning, F., Llobet, A., Trouw, F., Kurita, N., Tokiwa, Y., Lee, Han-oh, Booth, C. H., Gardner, J. S., Bauer, E. D., Joyce, J. J., Zandbergen, H. W., Movshovich, R., Cava, R. J., Thompson, J. D.
Publikováno v:
Phys. Rev. B 84, 075152 (2011)
We report extensive measurements on a new compound (Yb0.24Sn0.76)Ru that crystallizes in the cubic CsCl structure. Valence band photoemission and L3 x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic neutron scatteri
Externí odkaz:
http://arxiv.org/abs/1108.5513
Autor:
Ross, K. A., Yaraskavitch, L. R., Laver, M., Gardner, J. S., Quilliam, J. A., Meng, S., Kycia, J. B., Singh, D. K., Dabkowska, H. A., Gaulin, B. D.
Publikováno v:
Phys. Rev. B 84, 174442 (2011)
The pyrochlore material Yb2Ti2O7 displays unexpected quasi-two-dimensional (2D) magnetic correlations within a cubic lattice environment at low temperatures, before entering an exotic disordered ground state below T=265mK. We report neutron scatterin
Externí odkaz:
http://arxiv.org/abs/1107.2377
Publikováno v:
Phys. Rev. B 84, 140402 (2011)
We present new high resolution inelastic neutron scattering data on the candidate spin liquid Tb2Ti2O7. We find that there is no evidence for a zero field splitting of the ground state doublet within the 0.2 K resolution of the instrument. This resul
Externí odkaz:
http://arxiv.org/abs/1106.1402
Autor:
Yanez-Vilar, S., Mun, E. D., Zapf, V. S., Ueland, B. G., Gardner, J., Thompson, J. D., Singleton, J., Sanchez-Andujar, M., Mira, J., Biskup, N., Senaris-Rodriguez, M. A., Batista, C. D.
We present a new member of the multiferroic oxides, Lu$_2$MnCoO$_6$, which we have investigated using X-ray diffraction, neutron diffraction, specific heat, magnetization, electric polarization, and dielectric constant measurements. This material pos
Externí odkaz:
http://arxiv.org/abs/1105.2058
Autor:
Wang, C. H., Lawrence, J. M., Bauer, E. D., Kothapalli, K., Gardner, J. S., Ronning, F., Gofryk, K., Thompson, J. D., Nakotte, H., Trouw, F.
Publikováno v:
Phys. Rev. B 82, 094406 (2010)
Magnetic susceptibility results for single crystals of the new cubic compounds UT$_2$Al$_{20}$ (T=Mn, V, and Mo) are reported. Magnetization, specific heat, resistivity, and neutron diffraction results for a single crystal and neutron diffraction and
Externí odkaz:
http://arxiv.org/abs/1008.2235
Autor:
Pajerowski, D. M., Gardner, J. E., Andrus, M. J., Datta, S., Gomez, A., Kycia, S. W., Hill, S., Talham, D. R., Meisel, M. W.
Publikováno v:
Phys. Rev. B 82, 214405 (2010) [5 pages]
The magnetic anisotropy of thin (~ 200 nm) and thick (~ 2 $\mu$m) films and of polycrystalline (diameters ~ 60 nm) powders of the Prussian blue analogue Rb$_{0.7}$Ni$_{4.0}$[Cr(CN)$_6$]$_{2.9} \cdot n$H$_2$O, a ferromagnetic material with $T_c \sim 7
Externí odkaz:
http://arxiv.org/abs/1006.3801
Autor:
Straughn, A. N., Kuntschner, H., Kuemmel, M., Walsh, J. R., Cohen, S. H., Gardner, J. P., Windhorst, R. A., O'Connell, R. W., Pirzkal, N., Meurer, G., McCarthy, P. J., Hathi, N. P., Malhotra, S., Rhoads, J., Balick, B., Bond, H. E., Calzetti, D., Disney, M. J., Dopita, M. A., Frogel, J. A., Hall, D. N. B., Holtzman, J. A., Kimble, R. A., Mutchler, M., Luppino, G., Paresce, F., Saha, A., Silk, J. I., Trauger, J. T., Walker, A. R., Whitmore, B. C., Young, E. T., Xu, C.
We present grism spectra of emission-line galaxies (ELGs) from 0.6-1.6 microns from the Wide Field Camera 3 on the Hubble Space Telescope. These new infrared grism data augment previous optical Advanced Camera for Surveys G800L 0.6-0.95 micron grism
Externí odkaz:
http://arxiv.org/abs/1005.3071