Abstract
Two new phases LaPd1-xBi2 and CePd 1-xBi2 were obtained by growing single crystals in Bi flux. They adopt the tetragonal ZrCuSi2-type structure and feature Bi-square nets and PbO-type PdBi layers with significant partial Pd occupancy. Bulk superconductivity at 2.1 K and metallic behavior above Tc are observed in LaPd1-xBi2. A small residual resistance ratio (RRR) indicates a strong scattering effect induced by the Pd vacancies, which implies an s-wave pairing symmetry in LaPd1-xBi2. The broadening of the resistivity transition was measured under different magnetic fields demonstrating a high upper critical field of 3 T. Hall effect measurements reveal dominantly electron-like charge carriers and single-band transport behavior in LaPd1-xBi2. The paramagnetic CePd1-xBi2 is nonsuperconducting but shows antiferromagnetic ordering below 6 K.
| Original language | English |
|---|---|
| Article number | 144511 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 88 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - Oct 22 2013 |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
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Superconductivity and strong intrinsic defects in LaPd1-xBi 2. / Han, Fei; Malliakas, Christos D.; Stoumpos, Constantinos C.; Sturza, Mihai; Claus, Helmut; Chung, Duck Young; Kanatzidis, Mercouri G.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 88, No. 14, 144511, 22.10.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Superconductivity and strong intrinsic defects in LaPd1-xBi 2
AU - Han, Fei
AU - Malliakas, Christos D.
AU - Stoumpos, Constantinos C.
AU - Sturza, Mihai
AU - Claus, Helmut
AU - Chung, Duck Young
AU - Kanatzidis, Mercouri G
PY - 2013/10/22
Y1 - 2013/10/22
N2 - Two new phases LaPd1-xBi2 and CePd 1-xBi2 were obtained by growing single crystals in Bi flux. They adopt the tetragonal ZrCuSi2-type structure and feature Bi-square nets and PbO-type PdBi layers with significant partial Pd occupancy. Bulk superconductivity at 2.1 K and metallic behavior above Tc are observed in LaPd1-xBi2. A small residual resistance ratio (RRR) indicates a strong scattering effect induced by the Pd vacancies, which implies an s-wave pairing symmetry in LaPd1-xBi2. The broadening of the resistivity transition was measured under different magnetic fields demonstrating a high upper critical field of 3 T. Hall effect measurements reveal dominantly electron-like charge carriers and single-band transport behavior in LaPd1-xBi2. The paramagnetic CePd1-xBi2 is nonsuperconducting but shows antiferromagnetic ordering below 6 K.
AB - Two new phases LaPd1-xBi2 and CePd 1-xBi2 were obtained by growing single crystals in Bi flux. They adopt the tetragonal ZrCuSi2-type structure and feature Bi-square nets and PbO-type PdBi layers with significant partial Pd occupancy. Bulk superconductivity at 2.1 K and metallic behavior above Tc are observed in LaPd1-xBi2. A small residual resistance ratio (RRR) indicates a strong scattering effect induced by the Pd vacancies, which implies an s-wave pairing symmetry in LaPd1-xBi2. The broadening of the resistivity transition was measured under different magnetic fields demonstrating a high upper critical field of 3 T. Hall effect measurements reveal dominantly electron-like charge carriers and single-band transport behavior in LaPd1-xBi2. The paramagnetic CePd1-xBi2 is nonsuperconducting but shows antiferromagnetic ordering below 6 K.
UR - http://www.scopus.com/inward/record.url?scp=84887065207&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevB.88.144511
DO - 10.1103/PhysRevB.88.144511
M3 - Article
AN - SCOPUS:84887065207
VL - 88
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 14
M1 - 144511
ER -