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Antiferromagnetic order in uranium nickel(0.39) rhodium (0.61) aluminum.

Description: As the archetype magnetic intermetallic compounds IJNiAI (antiferromagnet, TN = 19K) and URhAI (ferromagnet, TC = 27K) [1] ., iJNi0.39Rh0.61A1 crystallizes in the hexagonal ZrNiAI-type structure . UNi0 .39Rh0.61A1 undergoes antiferromagnetic (AF) at TN = 13K . Here, we report on resistance and magnetoresistance studies on single-crystalline UNi0 .39Rh0.61A1 in magnetic field up to 18T applied along and perpendicular to the c-axis. 20-Tesla National High Magnetic Field Laboratory (NHMFL) at Los … more
Date: January 1, 2003
Creator: El-Khatib, Sami; Alsmadi, A.; Nakotte, Heinz; Andreev, A. V. & Lacerda, Alex H.
Partner: UNT Libraries Government Documents Department
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Structural and magnetic properties of UCo{sub 1/3}T{sub 2/3}Al solid solutions (T = Ru, Pt, Rh).

Description: We report on neutron diffraction studies of UCo{sub 1/3}T{sub 2/3}Al (T = Ru, Pt, Rh). All three solid solutions form in the hexagonal ZrNiAl structure. The Ru-containing compound is found to be chemically ordered, while the Pt-containing compound is nearly disordered and the Rh-containing compound is purely disordered. All three compounds exhibit long-range magnetic order with rather small U moments.
Date: August 6, 1999
Creator: Andreev, A. V.; Bordallo, H. N.; Chang, S.; Nakotte, H.; Schultz, A. J.; Sechovsky, V. et al.
Partner: UNT Libraries Government Documents Department
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Effects of hydrogen absorption in TbNiAl and UNiAl

Description: Although hydrides of intermetallic compounds are used extensively as hydrogen-storage media, little is known about the exact nature of metal-hydrogen interactions. However, this knowledge is of essential importance for the understanding of thermodynamics and other properties. Hydrides (deuterides) of TbNiAl and UNiAl have been widely studied because of drastic increase of magnetic ordering temperature under hydrogenation. Here the authors report neutron-diffraction results of the three deuterid… more
Date: December 31, 1998
Creator: Bordallo, H. N.; Nakotte, H.; Schultz, A.; Kolomiets, A. V.; Havela, L. & Andreev, A. V.
Partner: UNT Libraries Government Documents Department
open access

Magnetic properties of single-crystalline UCu{sub 3}Al{sub 2}

Description: UCu{sub 3}Al{sub 2} crystallizes in an ordered variant of the hexagonal CaCu{sub 5} structure. By neutron powder-diffraction, the U atoms were found to occupy the la sites, while the 2c sites are occupied by Cu atoms only and a random occupation of the 3g sites by the remaining Cu and Al is found. The magnetic susceptibility, measured on a single crystal grown by the Czochralski tri-arc technique, is found to be maximal within the hexagonal basal plane with a maximum at about 10 K. For fields a… more
Date: July 1, 1993
Creator: Nakotte, H.; Brueck, E.; Brabers, J. H. V. J.; Prokes, K.; de Boer, F. R.; Sechovsky, V. et al.
Partner: UNT Libraries Government Documents Department
open access

Magnetic properties of single-crystalline UCu[sub 3]Al[sub 2]

Description: UCu[sub 3]Al[sub 2] crystallizes in an ordered variant of the hexagonal CaCu[sub 5] structure. By neutron powder-diffraction, the U atoms were found to occupy the la sites, while the 2c sites are occupied by Cu atoms only and a random occupation of the 3g sites by the remaining Cu and Al is found. The magnetic susceptibility, measured on a single crystal grown by the Czochralski tri-arc technique, is found to be maximal within the hexagonal basal plane with a maximum at about 10 K. For fields a… more
Date: January 1, 1993
Creator: Nakotte, H.; Brueck, E.; Brabers, J.H.V.J.; Prokes, K.; de Boer, F.R. (Amsterdam Univ. (Netherlands). Van der Waals Lab.); Sechovsky, V. (Charles Univ., Prague (Czech Republic). Dept. of Metal Physics) et al.
Partner: UNT Libraries Government Documents Department
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