Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Glen A. Stewart"'
Publikováno v:
AIP Advances, Vol 7, Iss 5, Pp 055702-055702-5 (2017)
Previously, the bulk magnetisation of polycrystalline DyNiAl4 was found to reach barely half its expected saturation value with a 9 T applied field. New inelastic neutron scattering and 161Dy-Mössbauer spectroscopy results suggest that the crystal f
Externí odkaz:
https://doaj.org/article/ec6af25c6d8a4656ae8930fe42a0c25f
Publikováno v:
SSRN Electronic Journal.
Autor:
Guilherme Mallmann, Hugh St. C. O'Neill, J. Fred W. Mosselmans, Glen A. Stewart, Andrew J. Berry
Publikováno v:
Earth and Planetary Science Letters. 483:114-123
The oxidation state of Fe, Fe / 3 + Σ Fe (where Σ Fe = Fe 2 + + Fe 3 + ), in glass samples of mid-ocean ridge basalt (MORB), from a wide range of localities, was determined by XANES spectroscopy to be 0.10(2) ( n = 42 ). This value is lower than th
Autor:
Gail N. Iles, J. M. Cadogan, Glen A. Stewart, K. Nishimura, Richard A. Mole, R. White, Wayne D. Hutchison, Takahiro Namiki
Publikováno v:
Journal of Alloys and Compounds. 845:156184
Analysis of inelastic neutron scattering data recorded for the rare earth intermetallic compound TmV2Al20 yields a cubic crystal field Hamiltonian with parameters x = −0.63(1) and W = +0.43(1) K (Lea, Leask & Wolf notation). This result is supporte
Autor:
Morgan Rehnberg, Larry W. Esposito, Zarah Brown, M. Sremcevic, Nicole Albers, Glen R. Stewart
Publikováno v:
Icarus. 279:100-108
The co-orbital satellites of Saturn, Janus and Epimetheus, swap radial positions every 4.0 years. Since \textit{Cassini} has been in orbit about Saturn, this has occurred on 21 January in 2006, 2010, and 2014. We describe the effects of this radial m
Publikováno v:
Hyperfine Interactions. 231:37-44
The MPS3 family of layered magnetic materials (M = Fe2+, Ni2+, Mn2+, etc) shows many unusual properties. We have recently observed time-dependent magnetisation and two magnetic phase transitions in Fe0.5Ni0.5PS3, and here we use neutron diffraction a
Autor:
J. M. Cadogan, Wayne D. Hutchison, Jacob P. Evans, James E. Downes, Emma E. Mitchell, Glen A. Stewart
Publikováno v:
Physical Review B. 95
Conventional magnetometry yields a low temperature bulk magnetic moment of about $4\phantom{\rule{0.28em}{0ex}}{\ensuremath{\mu}}_{\mathrm{B}}/\phantom{{\ensuremath{\mu}}_{\mathrm{B}}\mathrm{D}{\mathrm{y}}^{3+}}\phantom{\rule{0.0pt}{0ex}}\mathrm{D}{\
Publikováno v:
Hyperfine Interactions. 230:195-203
170Yb- and 57Fe-Mossbauer spectra are reported for orthorhombic phase manganites YbMnO3 and Yb(57Fe0.005Mn0.995)O3, respectively. Point charge model estimates of the electric field gradient agree well with experimental 57Fe-Mossbauer results in terms
Publikováno v:
AIP Advances, Vol 9, Iss 3, Pp 035320-035320-4 (2019)
Earlier Mössbauer investigations of rare earth chromates RCrO4 with R = Gd and Tm were interpreted in terms of a superposition of two sub-spectra (approx. 4:1 area ratio), despite there being only a single crystallographic R(4a) site. In addition, t
Publikováno v:
Solid State Phenomena. 194:84-87
A low temperature 166Er-Mössbauer spectroscopy investigation of ErNiAl4 reveals that the Er3+ ion’s ground state Kramers doublet has ¦Jz¦ just 8% less than the fully-stretched value of J = 15/2. The persistence of a magnetically-split spectrum t