TY - JOUR
T1 - Thermal expansion characteristics associated with spin fluctuations under applied magnetic field and high pressure for Lu(Co0.9Ga 0.1)2 laves-phase compound
AU - Ohta, Motoki
AU - Fujita, Asaya
AU - Fukamichi, Kazuaki
AU - Saito, Hidekazu
AU - Kagayama, Tomoko
AU - Oomi, Gendo
AU - Goto, Tsuneaki
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - The thermal expansion measurements under several kinds of conditions have been carried out for Lu(Co0.90Ga0.10)2 Laves-phase compound. With decreasing temperature, the significant increase of the thermal expansion due to the spontaneous volume magnetostriction ωm(T) appears at low temperatures. Under magnetic fields, ωm(T) spreads over a wide range of temperature due to the induced ferromagnetic moment above TC. On the other hand, ωm(T) becomes smaller by applying hydrostatic pressure p, in addition to the significant decrease of TC. At p=1.1 GPa, ferromagnetic state disappears and the thermal expansion curve becomes close to that of paramagnetic Lu(Co0.91Ga0.09)2
AB - The thermal expansion measurements under several kinds of conditions have been carried out for Lu(Co0.90Ga0.10)2 Laves-phase compound. With decreasing temperature, the significant increase of the thermal expansion due to the spontaneous volume magnetostriction ωm(T) appears at low temperatures. Under magnetic fields, ωm(T) spreads over a wide range of temperature due to the induced ferromagnetic moment above TC. On the other hand, ωm(T) becomes smaller by applying hydrostatic pressure p, in addition to the significant decrease of TC. At p=1.1 GPa, ferromagnetic state disappears and the thermal expansion curve becomes close to that of paramagnetic Lu(Co0.91Ga0.09)2
KW - Itinerant-electron metamagnetism
KW - Magnetovolume effect
KW - Pressure effect
KW - Spontaneous volume magnetostriction
KW - Thermal expansion
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U2 - 10.1143/JPSJS.76SA.84
DO - 10.1143/JPSJS.76SA.84
M3 - Article
AN - SCOPUS:70349411872
VL - 76
SP - 84
EP - 85
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. A
ER -