Crystal structure and physical properties of 243AmPd 5Al 2

J. C. Griveau; K. Gofryk; D. Bouëxière; E. Colineau; J. Rebizant

doi:10.1103/PhysRevB.85.085108

Crystal structure and physical properties of 243AmPd ₅Al ₂

J. C. Griveau, K. Gofryk, D. Bouëxière, E. Colineau, J. Rebizant

Nuclear Science & Technology

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Abstract

We report on the crystal structure, magnetic susceptibility, specific heat, and electrical and thermoelectrical properties of AmPd ₅Al ₂, the americium counterpart of the unconventional superconductor NpPd ₅Al ₂. AmPd ₅Al ₂ crystallizes into the ZrNi ₂Al ₅ type of structure with lattice parameters: a = 4.1298 Å and c = 14.7925 Å. Magnetic measurements of AmPd ₅Al ₂ indicate a paramagnetic behavior with no hint of magnetic ordering nor superconductivity down to 2 K. This aspect is directly related to its 5f6 electronic configuration with J=0. The specific heat measurements confirm the nonmagnetic ground state of this compound. The low temperature electronic specific heat γ _e∼20 mJmol ^-1K ^-2 is clearly enhanced as compared to americium metal. All transport measurements obtained point to a metallic behavior in AmPd ₅Al ₂.

Original language	English
Article number	085108
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.85.085108
State	Published - Feb 13 2012

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title = "Crystal structure and physical properties of 243AmPd 5Al 2 ",

abstract = "We report on the crystal structure, magnetic susceptibility, specific heat, and electrical and thermoelectrical properties of AmPd 5Al 2, the americium counterpart of the unconventional superconductor NpPd 5Al 2. AmPd 5Al 2 crystallizes into the ZrNi 2Al 5 type of structure with lattice parameters: a = 4.1298 {\AA} and c = 14.7925 {\AA}. Magnetic measurements of AmPd 5Al 2 indicate a paramagnetic behavior with no hint of magnetic ordering nor superconductivity down to 2 K. This aspect is directly related to its 5f6 electronic configuration with J=0. The specific heat measurements confirm the nonmagnetic ground state of this compound. The low temperature electronic specific heat γ e∼20 mJmol -1K -2 is clearly enhanced as compared to americium metal. All transport measurements obtained point to a metallic behavior in AmPd 5Al 2.",

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T1 - Crystal structure and physical properties of 243AmPd 5Al 2

AU - Griveau, J. C.

AU - Gofryk, K.

AU - Bouëxière, D.

AU - Colineau, E.

AU - Rebizant, J.

PY - 2012/2/13

Y1 - 2012/2/13

N2 - We report on the crystal structure, magnetic susceptibility, specific heat, and electrical and thermoelectrical properties of AmPd 5Al 2, the americium counterpart of the unconventional superconductor NpPd 5Al 2. AmPd 5Al 2 crystallizes into the ZrNi 2Al 5 type of structure with lattice parameters: a = 4.1298 Å and c = 14.7925 Å. Magnetic measurements of AmPd 5Al 2 indicate a paramagnetic behavior with no hint of magnetic ordering nor superconductivity down to 2 K. This aspect is directly related to its 5f6 electronic configuration with J=0. The specific heat measurements confirm the nonmagnetic ground state of this compound. The low temperature electronic specific heat γ e∼20 mJmol -1K -2 is clearly enhanced as compared to americium metal. All transport measurements obtained point to a metallic behavior in AmPd 5Al 2.

AB - We report on the crystal structure, magnetic susceptibility, specific heat, and electrical and thermoelectrical properties of AmPd 5Al 2, the americium counterpart of the unconventional superconductor NpPd 5Al 2. AmPd 5Al 2 crystallizes into the ZrNi 2Al 5 type of structure with lattice parameters: a = 4.1298 Å and c = 14.7925 Å. Magnetic measurements of AmPd 5Al 2 indicate a paramagnetic behavior with no hint of magnetic ordering nor superconductivity down to 2 K. This aspect is directly related to its 5f6 electronic configuration with J=0. The specific heat measurements confirm the nonmagnetic ground state of this compound. The low temperature electronic specific heat γ e∼20 mJmol -1K -2 is clearly enhanced as compared to americium metal. All transport measurements obtained point to a metallic behavior in AmPd 5Al 2.

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Crystal structure and physical properties of 243AmPd ₅Al ₂

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