Properties of UNiAlD2.1 and UNiAlH2.3

H. N. Bordallo; H. Nakotte; A. V. Kolomiets; A. Christianson; L. Havela; A. J. Schultz; H. Drulis; W. Iwasieczko

doi:10.1016/S0921-4526(99)01810-4

Properties of UNiAlD_2.1 and UNiAlH_2.3

H. N. Bordallo, H. Nakotte, A. V. Kolomiets, A. Christianson, L. Havela, A. J. Schultz, H. Drulis, W. Iwasieczko

Correlated Electron Materials

Research output: Contribution to journal › Conference article › peer-review

18 Scopus citations

Abstract

UNiAlD_2.1 and UNiAlH_2.3 were synthesized using a two-stage process. First, the parent intermetallic UNiAl was arc-melted from the constituent elements under Ar atmosphere, and the phase purity was verified by means of X ray diffraction. Secondly, the material was crushed and hydrogenated by means of activating the specimen in a vacuum of 10^-6 Torr at 350 °C for 1 h, followed by exposure to D(H) at 55 atm pressure. The amount of absorbed D(H) was determined by monitoring the decrease of pressure in a calibrated volume. Results showed that due to lattice expansion and weakening of the 5f-ligand hybridization, UNiAlD_2.1 orders magnetically at a much higher temperature than the isostructural UNiAl.

Original language	English
Pages (from-to)	706-707
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	276-278
DOIs	https://doi.org/10.1016/S0921-4526(99)01810-4
State	Published - Mar 2000
Event	2nd European Conference on Neutron Scattering (ECNS '99) - Budapest, Hung Duration: Sep 1 1999 → Sep 4 1999

Funding

The authors thank M. Miller and S. Short for assistance in the neutron experiments. Work supported by DOE-BES (W-31-109-ENG-38), by Grant Agency of the Czech Republic, No. 106/98/0507 and Grant Agency of the Charles University, No. 61/1998.

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title = "Properties of UNiAlD2.1 and UNiAlH2.3",

abstract = "UNiAlD2.1 and UNiAlH2.3 were synthesized using a two-stage process. First, the parent intermetallic UNiAl was arc-melted from the constituent elements under Ar atmosphere, and the phase purity was verified by means of X ray diffraction. Secondly, the material was crushed and hydrogenated by means of activating the specimen in a vacuum of 10-6 Torr at 350 °C for 1 h, followed by exposure to D(H) at 55 atm pressure. The amount of absorbed D(H) was determined by monitoring the decrease of pressure in a calibrated volume. Results showed that due to lattice expansion and weakening of the 5f-ligand hybridization, UNiAlD2.1 orders magnetically at a much higher temperature than the isostructural UNiAl.",

author = "Bordallo, {H. N.} and H. Nakotte and Kolomiets, {A. V.} and A. Christianson and L. Havela and Schultz, {A. J.} and H. Drulis and W. Iwasieczko",

year = "2000",

month = mar,

doi = "10.1016/S0921-4526(99)01810-4",

language = "English",

volume = "276-278",

pages = "706--707",

journal = "Physica B: Physics of Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

note = "2nd European Conference on Neutron Scattering (ECNS '99) ; Conference date: 01-09-1999 Through 04-09-1999",

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TY - JOUR

T1 - Properties of UNiAlD2.1 and UNiAlH2.3

AU - Bordallo, H. N.

AU - Nakotte, H.

AU - Kolomiets, A. V.

AU - Christianson, A.

AU - Havela, L.

AU - Schultz, A. J.

AU - Drulis, H.

AU - Iwasieczko, W.

PY - 2000/3

Y1 - 2000/3

N2 - UNiAlD2.1 and UNiAlH2.3 were synthesized using a two-stage process. First, the parent intermetallic UNiAl was arc-melted from the constituent elements under Ar atmosphere, and the phase purity was verified by means of X ray diffraction. Secondly, the material was crushed and hydrogenated by means of activating the specimen in a vacuum of 10-6 Torr at 350 °C for 1 h, followed by exposure to D(H) at 55 atm pressure. The amount of absorbed D(H) was determined by monitoring the decrease of pressure in a calibrated volume. Results showed that due to lattice expansion and weakening of the 5f-ligand hybridization, UNiAlD2.1 orders magnetically at a much higher temperature than the isostructural UNiAl.

AB - UNiAlD2.1 and UNiAlH2.3 were synthesized using a two-stage process. First, the parent intermetallic UNiAl was arc-melted from the constituent elements under Ar atmosphere, and the phase purity was verified by means of X ray diffraction. Secondly, the material was crushed and hydrogenated by means of activating the specimen in a vacuum of 10-6 Torr at 350 °C for 1 h, followed by exposure to D(H) at 55 atm pressure. The amount of absorbed D(H) was determined by monitoring the decrease of pressure in a calibrated volume. Results showed that due to lattice expansion and weakening of the 5f-ligand hybridization, UNiAlD2.1 orders magnetically at a much higher temperature than the isostructural UNiAl.

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JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

T2 - 2nd European Conference on Neutron Scattering (ECNS '99)

Y2 - 1 September 1999 through 4 September 1999

ER -

Properties of UNiAlD_2.1 and UNiAlH_2.3

Abstract

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