TY - JOUR
T1 - Two dimensional Fermi surfaces of CePtAs and CePtP studied by the de Haas-van Alphen and magnetoresistance experiments
AU - Settai, Rikio
AU - Yoshida, Yoshiyuki
AU - Yamaguchi, Akinobu
AU - Onuki, Yoshichika
AU - Yoshii, Shunsuke
AU - Kasaya, Mitsuo
AU - Harima, Hisatomo
AU - Takegahara, Katsuhiko
PY - 1999/1/1
Y1 - 1999/1/1
N2 - We have found the cylindrical Fermi surfaces of CePtX (X=As, P) by the de Haas-van Alphen (dHvA) and magnetoresistance experiments. This is mainly due to the crystal structure, where the nearest neighbor distance between Pt and X atoms on the Pt-X plane is extremely short. The strong hybridization between the Pt 5d(x2 - y2, xy) and X p(x, y) states makes partially occupied anti-bonding bands, resulting in the cylindrical Fermi surfaces. The cyclotron effective mass is light, being in the range of 0.47 to 0.84 m0 for CePtAs and 0.34 to 0.82 m0 for CePtP. The present experimental results are well explained by the FLAPW band calculations.
AB - We have found the cylindrical Fermi surfaces of CePtX (X=As, P) by the de Haas-van Alphen (dHvA) and magnetoresistance experiments. This is mainly due to the crystal structure, where the nearest neighbor distance between Pt and X atoms on the Pt-X plane is extremely short. The strong hybridization between the Pt 5d(x2 - y2, xy) and X p(x, y) states makes partially occupied anti-bonding bands, resulting in the cylindrical Fermi surfaces. The cyclotron effective mass is light, being in the range of 0.47 to 0.84 m0 for CePtAs and 0.34 to 0.82 m0 for CePtP. The present experimental results are well explained by the FLAPW band calculations.
KW - Band theory
KW - CePtAs
KW - CePtP
KW - Magnetoresistance
KW - de Haas-van Alphen effect
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U2 - 10.1143/JPSJ.68.3615
DO - 10.1143/JPSJ.68.3615
M3 - Article
AN - SCOPUS:0033269220
VL - 68
SP - 3615
EP - 3622
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 11
ER -