TY - JOUR
T1 - Single-crystal growth and characterization of REBa2Cu4O8 and Y1-xCaxBa2Cu4O8
AU - Hijar, C. A.
AU - Stern, C. L.
AU - Poeppelmeier, K. R.
AU - Rogacki, K.
AU - Chen, Z.
AU - Dabrowski, B.
N1 - Funding Information:
This research was supported by the National Science Foundation under Grant No. DMR 91-20000, through the Science and Technology Center for Superconductivity.
PY - 1995/10/1
Y1 - 1995/10/1
N2 - Crystals of REBa2Cu4O8 (RE = Yb, Tm, Er, Ho, Dy, and Y1-xCax) were grown at 1100°C and 600 bar of O2 pressure in a hot isostatic press furnace. Single crystal X-ray diffraction data show that all compounds crystallized in space group Ammm (#65) with the approximate lattice parameters a ≈ 3.82 A ̊, b ≈ 3.86 A ̊, c ≈ 27.1 A ̊, and Z = 2 As the ionic radius of the lanthanide decreased, the lattice parameters decreased. Substitution of calcium in Y1-xCaxBa2Cu4O8 crystals (x ∼ 0.02) increased Tc to 87 K.
AB - Crystals of REBa2Cu4O8 (RE = Yb, Tm, Er, Ho, Dy, and Y1-xCax) were grown at 1100°C and 600 bar of O2 pressure in a hot isostatic press furnace. Single crystal X-ray diffraction data show that all compounds crystallized in space group Ammm (#65) with the approximate lattice parameters a ≈ 3.82 A ̊, b ≈ 3.86 A ̊, c ≈ 27.1 A ̊, and Z = 2 As the ionic radius of the lanthanide decreased, the lattice parameters decreased. Substitution of calcium in Y1-xCaxBa2Cu4O8 crystals (x ∼ 0.02) increased Tc to 87 K.
UR - http://www.scopus.com/inward/record.url?scp=0029392125&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029392125&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(95)00462-9
DO - 10.1016/0921-4534(95)00462-9
M3 - Article
AN - SCOPUS:0029392125
SN - 0921-4534
VL - 252
SP - 13
EP - 21
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 1-2
ER -