TY - JOUR
T1 - Low-temperature specific heat of Ce(Pd1-xNix)2Si2 under pressure
AU - Kuwai, T.
AU - Huo, D.
AU - Mizushima, T.
AU - Isikawa, Y.
AU - Sakurai, J.
N1 - Funding Information:
Authors appreciate Prof. K. Maezawa and Dr. T. Fukuhara, Toyama Prefectural University, Japan for their cooperation on preparations of single crystals for the present work. The present work was partly supported by Grant-in-Aid for Scientific Research from JSPS.
PY - 2002/3
Y1 - 2002/3
N2 - Low-temperature specific heat C under pressure for single crystals of an alloy of a Kondo antiferromagnetic CePd2Si2 with the Néel temperature TN = 10 K and a nonmagnetic CeNi2Si2, is presented. Antiferromagnetic ordering fades away monotonically with increasing Ni concentration on the Pd-site, exhibiting the non-Fermi-liquid behavior at low temperatures around x = 0.22, on which the magnetic-nonmagnetic boundary lies. Application of pressure of 0.2GPa for Ce(Pd0.82Ni0.18)2Si2 sensitively makes its TN lower, and the temperature variation on C at low temperatures almost coincides with that for Ce(Pd0.8Ni0.2)2Si2 under ambient pressure. Both the application of pressure and the substitution by Ni atoms in the vicinity of the magnetic-nonmagnetic boundary for the present system are considered to give the same effect on the magnetic and electronic properties.
AB - Low-temperature specific heat C under pressure for single crystals of an alloy of a Kondo antiferromagnetic CePd2Si2 with the Néel temperature TN = 10 K and a nonmagnetic CeNi2Si2, is presented. Antiferromagnetic ordering fades away monotonically with increasing Ni concentration on the Pd-site, exhibiting the non-Fermi-liquid behavior at low temperatures around x = 0.22, on which the magnetic-nonmagnetic boundary lies. Application of pressure of 0.2GPa for Ce(Pd0.82Ni0.18)2Si2 sensitively makes its TN lower, and the temperature variation on C at low temperatures almost coincides with that for Ce(Pd0.8Ni0.2)2Si2 under ambient pressure. Both the application of pressure and the substitution by Ni atoms in the vicinity of the magnetic-nonmagnetic boundary for the present system are considered to give the same effect on the magnetic and electronic properties.
KW - CePdSi
KW - Magnetic instability
KW - Non-Fermi-liquid
KW - Specific heat
UR - http://www.scopus.com/inward/record.url?scp=0036504187&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(01)01310-2
DO - 10.1016/S0921-4526(01)01310-2
M3 - 会議記事
AN - SCOPUS:0036504187
SN - 0921-4526
VL - 312-313
SP - 420
EP - 421
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
T2 - International Conference on Strongly Correlated Electrons
Y2 - 6 August 2002 through 6 August 2002
ER -