Zobrazeno 1 - 10
of 904
pro vyhledávání: '"N, Chesnut"'
Autor:
Antonio M. dos Santos, Christopher A. Tulk, Samuel T. Weir, Sarah Thomas, Jeffrey M Montgomery, Yogesh K. Vohra, Georgiy M. Tsoi, Gary N Chesnut
Publikováno v:
High Pressure Research. 33:555-562
Neutron diffraction and electrical transport measurements have been carried out on the heavy rare-earth metal terbium at high pressures and low temperatures in order to elucidate the onset of ferromagnetic (FM) order as a function of pressure. The el
Publikováno v:
Progress in Modern Biomedicine. 2024, Vol. 24 Issue 17, p3226-3245. 8p.
Autor:
Yogesh K. Vohra, Gary N. Chesnut
Publikováno v:
Physical Review B. 62:2965-2968
Pressure-induced structural phase transformations in a trivalent rare-earth metal praseodymium (Pr) were studied at room temperature in a diamond anvil cell to 103 GPa by energy dispersive x-ray diffraction using a synchrotron source. Our x-ray diffr
Autor:
Gary N. Chesnut, Yogesh K. Vohra
Publikováno v:
Physical Review B. 61:R3768-R3771
The light rare-earth metal, neodymium, has been studied up to 155 GPa in a diamond-anvil cell using energy dispersive x-ray diffraction with a synchrotron source. The pressures were calibrated using copper as an internal x-ray pressure standard. A ph
Autor:
Yogesh K. Vohra, Samuel T. Weir, Shane A. Catledge, Gary N. Chesnut, Heather Prokop, Jagannadham Akella
Publikováno v:
Journal of Physics: Condensed Matter. 11:6515-6520
Diamond anvil cells are used to generate high static pressures up to several megabars (hundreds of GPa) in very small volumes of material. We have explored a technique which employs a microwave plasma chemical vapour deposited diamond layer on one si
Autor:
Gary N. Chesnut, Yogesh K. Vohra
Publikováno v:
Physical Review Letters. 82:1712-1715
Ytterbium (Yb), a member of the rare earth group metals with a filled $f$ shell and a divalent electronic character, has been studied under static high pressures in a diamond anvil cell to 202 GPa. We report a new transformation from a face-centered-
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 18(25)
We have designed a new diamond-anvil cell capable of radial x-ray diffraction to pressures of a few hundred GPa. The diffraction geometry allows access to multiple angles of Ψ, which is the angle between each reciprocal lattice vector g(hkl) and the
Autor:
Kaaber, Ida A.1,2 (AUTHOR), Lesbo, Maj3 (AUTHOR), Wichmann, Thea O.4 (AUTHOR), Olsen, Dorte Aa.5 (AUTHOR), Rasmussen, Mikkel M.2,4 (AUTHOR), Brink, Ole6 (AUTHOR), Borris, Lars C.6 (AUTHOR), Hviid, Claus V. B.1,2,7,8 (AUTHOR) Claus.Hviid@auh.rm.dk
Publikováno v:
Scientific Reports. 6/19/2024, Vol. 14 Issue 1, p1-12. 12p.
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 23(12)
Static high pressure diamond anvil cell experiments were performed on three polycrystalline Zr samples having varying interstitial impurity concentrations. Systematic increase in transition pressure with the increase in the amount of interstitial imp
Autor:
N. Velisavljevic, G. N. Chesnut, D. M. Dattelbaum, Y. K. Vohra, A. Stemshorn, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, William T. Butler
Publikováno v:
AIP Conference Proceedings.
In group IV metals (Ti, Zr, and Hf) room temperature compression leads to a martensitic transformation from a ductile α to a brittle ω phase. The α→ω phase boundary decreases to lower pressure at high temperature and can limit the use of group