Abstract
CeAgSb2 crystallizes in the tetragonal ZrCuSi2 type structure (P4/nmm), which consists of Sb-Ce, Sb-Ag-Ce, Sb-Sb layers. It shows the peculiar anisotropic ferromagnetic ordering below 9.7 K with a small ordered moment of 0.33 μB. Its residual resistivity steeply increases above pc ≅ 3.3 GPa where the magnetic order disappears. It is expected that the p-f mixing on the peculiar hollow square pillar-like Fermi surface plays an important role in CeAgSb2, while similar Fermi surfaces were not observed in LaAgSb2. We have measured the anisotropy in the electrical resistivity of CexLa1-xAgSb2 to study the p-f mixing effect. Small humps were observed in the temperature dependence of the resistivity in CexLa1-xAgSb2. We expected them the CDW transition. The CDW state coexisted with the ferromagnetic state around x = 0.2.
| Original language | English |
|---|---|
| Pages (from-to) | 827-828 |
| Number of pages | 2 |
| Journal | Physica B: Condensed Matter |
| Volume | 378-380 |
| Issue number | SPEC. ISS. |
| DOIs | |
| Publication status | Published - May 1 2006 |
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Keywords
- CeAgSb
- LaAgSb
- p-f mixing
- Singularity of resistivity
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
Cite this
Anisotropic behavior in resistivity of RAgSb2 ( R=Ce, La ). / Watanabe, Y.; Inada, Yoshihiko; Hidaka, H.; Kotegawa, H.; Kobayashi, Tatsuo; Matsuda, T. D.; Aoki, D.
In: Physica B: Condensed Matter, Vol. 378-380, No. SPEC. ISS., 01.05.2006, p. 827-828.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Anisotropic behavior in resistivity of RAgSb2 ( R=Ce, La )
AU - Watanabe, Y.
AU - Inada, Yoshihiko
AU - Hidaka, H.
AU - Kotegawa, H.
AU - Kobayashi, Tatsuo
AU - Matsuda, T. D.
AU - Aoki, D.
PY - 2006/5/1
Y1 - 2006/5/1
N2 - CeAgSb2 crystallizes in the tetragonal ZrCuSi2 type structure (P4/nmm), which consists of Sb-Ce, Sb-Ag-Ce, Sb-Sb layers. It shows the peculiar anisotropic ferromagnetic ordering below 9.7 K with a small ordered moment of 0.33 μB. Its residual resistivity steeply increases above pc ≅ 3.3 GPa where the magnetic order disappears. It is expected that the p-f mixing on the peculiar hollow square pillar-like Fermi surface plays an important role in CeAgSb2, while similar Fermi surfaces were not observed in LaAgSb2. We have measured the anisotropy in the electrical resistivity of CexLa1-xAgSb2 to study the p-f mixing effect. Small humps were observed in the temperature dependence of the resistivity in CexLa1-xAgSb2. We expected them the CDW transition. The CDW state coexisted with the ferromagnetic state around x = 0.2.
AB - CeAgSb2 crystallizes in the tetragonal ZrCuSi2 type structure (P4/nmm), which consists of Sb-Ce, Sb-Ag-Ce, Sb-Sb layers. It shows the peculiar anisotropic ferromagnetic ordering below 9.7 K with a small ordered moment of 0.33 μB. Its residual resistivity steeply increases above pc ≅ 3.3 GPa where the magnetic order disappears. It is expected that the p-f mixing on the peculiar hollow square pillar-like Fermi surface plays an important role in CeAgSb2, while similar Fermi surfaces were not observed in LaAgSb2. We have measured the anisotropy in the electrical resistivity of CexLa1-xAgSb2 to study the p-f mixing effect. Small humps were observed in the temperature dependence of the resistivity in CexLa1-xAgSb2. We expected them the CDW transition. The CDW state coexisted with the ferromagnetic state around x = 0.2.
KW - CeAgSb
KW - LaAgSb
KW - p-f mixing
KW - Singularity of resistivity
UR - http://www.scopus.com/inward/record.url?scp=33646428088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646428088&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2006.01.305
DO - 10.1016/j.physb.2006.01.305
M3 - Article
AN - SCOPUS:33646428088
VL - 378-380
SP - 827
EP - 828
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - SPEC. ISS.
ER -