TY - JOUR
T1 - Magnetic susceptibility of the Pd-Co-H system
AU - Akamaru, Satoshi
AU - Matsumoto, Takashi
AU - Hara, Masanori
AU - Nishimura, Katsuhiko
AU - Nunomura, Norio
AU - Matsuyama, Masao
N1 - Funding Information:
This work was supported by Grant-in-Aid for scientific research (C) ( 23506830 ) from Japan Society of the Promotion Science.
PY - 2013
Y1 - 2013
N2 - In this study, the magnetic susceptibility of the Pd-Co-H system was simultaneously measured with pressure-composition isotherms at ambient temperature. The magnetic susceptibility of the system abruptly decreased as the hydrogen content increased to 0.02 for all Pd-Co alloys under study. In the plateau region, the susceptibility decreased linearly with an increase in hydrogen uptake. The single metal hydride phase exhibited weak magnetic susceptibility. These behaviours were qualitatively interpreted in terms of the electronic structure of the Pd-Co-H system. The unoccupied down-spin band of Co just above the Fermi level gradually decreased with increasing hydrogen uptake; thus, the magnetic moment arising from uncompensated spin reduced, and the ferromagnetic transition temperature decreased.
AB - In this study, the magnetic susceptibility of the Pd-Co-H system was simultaneously measured with pressure-composition isotherms at ambient temperature. The magnetic susceptibility of the system abruptly decreased as the hydrogen content increased to 0.02 for all Pd-Co alloys under study. In the plateau region, the susceptibility decreased linearly with an increase in hydrogen uptake. The single metal hydride phase exhibited weak magnetic susceptibility. These behaviours were qualitatively interpreted in terms of the electronic structure of the Pd-Co-H system. The unoccupied down-spin band of Co just above the Fermi level gradually decreased with increasing hydrogen uptake; thus, the magnetic moment arising from uncompensated spin reduced, and the ferromagnetic transition temperature decreased.
KW - Electronic band structure
KW - Hydrogen absorbing materials
KW - Magnetic measurements
KW - Pd-Co alloy
UR - http://www.scopus.com/inward/record.url?scp=84886641600&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2013.03.097
DO - 10.1016/j.jallcom.2013.03.097
M3 - 学術論文
AN - SCOPUS:84886641600
SN - 0925-8388
VL - 580
SP - S102-S104
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
IS - SUPPL1
ER -