TY - JOUR
T1 - Onset of ferromagnetism in the 5f-band metamagnet UCoAl upon partial dilution of the U sublattice
AU - Andreev, A. V.
AU - Sechovský, V.
AU - Rafaja, D.
AU - Dobiášová, L.
AU - Homma, Y.
AU - Shiokawa, Y.
N1 - Funding Information:
The work is supported by grant #202/99/0184 of Grant Agency of the Czech Republic and grant #A1010018 of Grant Agency of Academy of Sciences of the Czech Republic.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2000/7/14
Y1 - 2000/7/14
N2 - UCoAl is a 5f-band metamagnet. The U1-xRxCoAl solid solutions with R=Lu and Y exhibit ferromagnetism for low R content. The spontaneous magnetic moment reaches a maximum value of 0.09 μB and 0.21 μB at x=0.06 for R=Lu and Y, respectively, and vanishes at x≥0.15. The evolution of crystal structure parameters together with magnetism are compared for U1-xLuxCoAl, U1-xYxCoAl and also for UCoAl1-xXx (X=Ga, In, Sn). It is concluded that the linear changes of lattice dimensions rather that the unit cell volume play a principal role in determining the ground state properties of UCoAl related compounds. The decrease of the c/a ratio in these materials correlates with the transformation from the metamagnetic to a ferromagnetic state.
AB - UCoAl is a 5f-band metamagnet. The U1-xRxCoAl solid solutions with R=Lu and Y exhibit ferromagnetism for low R content. The spontaneous magnetic moment reaches a maximum value of 0.09 μB and 0.21 μB at x=0.06 for R=Lu and Y, respectively, and vanishes at x≥0.15. The evolution of crystal structure parameters together with magnetism are compared for U1-xLuxCoAl, U1-xYxCoAl and also for UCoAl1-xXx (X=Ga, In, Sn). It is concluded that the linear changes of lattice dimensions rather that the unit cell volume play a principal role in determining the ground state properties of UCoAl related compounds. The decrease of the c/a ratio in these materials correlates with the transformation from the metamagnetic to a ferromagnetic state.
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U2 - 10.1016/S0925-8388(00)00875-6
DO - 10.1016/S0925-8388(00)00875-6
M3 - Article
AN - SCOPUS:0034224686
VL - 307
SP - 77
EP - 81
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -