TY - JOUR
T1 - Interplay between doping and pressure effects in magnetism of UCo 1-xTxAl (T = Fe, Ni) single crystals
AU - Andreev, A. V.
AU - Mushnikov, N. V.
AU - Goto, T.
AU - Sechovský, V.
AU - Homma, Y.
AU - Shiokawa, Y.
N1 - Funding Information:
This work is part of the research program MSM113200002 that is financed by the Ministry of Education of the Czech Republic. It has been partially supported also by the Grant Agency of the Czech Republic (grant # 202/02/0739) and by a Grant-in Aid for the Scientific Research on Priority Areas (B) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2003/5
Y1 - 2003/5
N2 - The metamagnetic behavior of UCoAl is easily transformed to ferromagnetism or conventional paramagnetism with doping UCoAl by suitable elements. The new ferromagnetic state is very sensitive to pressure. We demonstrate these phenomena by a magnetization study of the UCo1-xTxAl (T = Fe, Ni) single crystals. The Ni substitution for Co yields an increase of the critical field for the metamagnetic transition. The transition disappears for x = 0.10. The UCo0.90Fe0.05Ni0.05Al and UCo 0.98Fe0.02Al compounds exhibit ferromagnetism, however, a hydrostatic pressure of only 0.3 GPa is sufficient to suppress ferromagnetic ordering and restore the metamagnetic behavior of UCoAl-type. The ferromagnetism in UCo0.95Fe0.05Al is more stable and persists up to 0.8 GPa.
AB - The metamagnetic behavior of UCoAl is easily transformed to ferromagnetism or conventional paramagnetism with doping UCoAl by suitable elements. The new ferromagnetic state is very sensitive to pressure. We demonstrate these phenomena by a magnetization study of the UCo1-xTxAl (T = Fe, Ni) single crystals. The Ni substitution for Co yields an increase of the critical field for the metamagnetic transition. The transition disappears for x = 0.10. The UCo0.90Fe0.05Ni0.05Al and UCo 0.98Fe0.02Al compounds exhibit ferromagnetism, however, a hydrostatic pressure of only 0.3 GPa is sufficient to suppress ferromagnetic ordering and restore the metamagnetic behavior of UCoAl-type. The ferromagnetism in UCo0.95Fe0.05Al is more stable and persists up to 0.8 GPa.
KW - Actinide compounds
KW - Itinerant metamagnetism
KW - Pressure effects
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U2 - 10.1016/S0921-4526(02)02163-4
DO - 10.1016/S0921-4526(02)02163-4
M3 - Article
AN - SCOPUS:20344408125
SN - 0921-4526
VL - 329-333
SP - 499
EP - 501
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - II
ER -