TY - JOUR
T1 - The 23 K superconducting phase YPd2B2C
AU - Sun, Y. Y.
AU - Rusakova, I.
AU - Meng, R. L.
AU - Cao, Y.
AU - Gautier-Picard, P.
AU - Chu, C. W.
N1 - Funding Information:
We would like to thank L. BeauvaisC, . Kinalidis, and J. Kulik for helpfuld iscussionasn dt echnicahl elp in samplep reparatioann d SEM analysisT. he work is supportedin part by NSF Grant No, DMR 91-22043,U SAFOSR Grant No. F49620-93-1-031b0y BMDO, EPRI, ARPA Grant No. MDA 972-90-J-100t , the Stateo f Texast hrought heT exasC enterf or Superconductiviatty t heU niversityo f Houston,a nd the T.L.L. TempleF oundation.
PY - 1994/9/10
Y1 - 1994/9/10
N2 - We have carried out a systematic structural, electric, and magnetic study on YPdBC samples with different compositions with emphasis on the as-cast and annealed YPd5B3C0.3 which was first reported to superconduct at ∼ 23 K by Cava et al. We found that the tetragonal body-centered YPd2B2C with lattice parameters a=3.71 A ̊ and c=10.81 A ̊ is the phase responsible for the 23 K superconductivity and that YPd2B2C is metastable, which is consistent with the suggestion made by Cava et al. [1]: it is not stable at high temperatures nor stabilizable by Ni doping, although its isostructural compound, YNi2B2C, exists. Two new phases with Y:Pd ratios of 1:7 and 2:3, respectively, have also bee detected.
AB - We have carried out a systematic structural, electric, and magnetic study on YPdBC samples with different compositions with emphasis on the as-cast and annealed YPd5B3C0.3 which was first reported to superconduct at ∼ 23 K by Cava et al. We found that the tetragonal body-centered YPd2B2C with lattice parameters a=3.71 A ̊ and c=10.81 A ̊ is the phase responsible for the 23 K superconductivity and that YPd2B2C is metastable, which is consistent with the suggestion made by Cava et al. [1]: it is not stable at high temperatures nor stabilizable by Ni doping, although its isostructural compound, YNi2B2C, exists. Two new phases with Y:Pd ratios of 1:7 and 2:3, respectively, have also bee detected.
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U2 - 10.1016/0921-4534(94)90862-1
DO - 10.1016/0921-4534(94)90862-1
M3 - Article
AN - SCOPUS:0028494464
SN - 0921-4534
VL - 230
SP - 435
EP - 442
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 3-4
ER -