NIST High Temp. Superconducting Materials (HTS) Database

NIST High Temp. Superconducting Materials (HTS) Database:

NIST Standard Reference Database 62

Last Update to Data Content: 1996

DOI: https://doi.org/10.18434/T4KP8J

Bibliographic Information

Title: The Transport Properties of YBa₂Cu₃O_7-x thin films
Author(s): C.C. Chin and T. Morishita
Publication: Physica C Volume: 207 Issue: Not Available Year: 1993 Page(s): 37-43
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Critical Flux Density Hc2

Materials and Properties

Y:123; [Y-Ba-Cu-O]

Material Specification for Y:123; [Y-Ba-Cu-O] Process: Laser Ablation
Notes: "... SrTiO₃... substrates were ultrasonically cleaned in acetone and methanol. The substrates were then annealed in oxygen atmosphere at 700 °C for one hour. The mean laser energy density was calculated to be about 3 J/cm², and the O₂ deposition partial pressure was (29.3 Pa = 220 mTorr). The thickness of the ultrathin films was calibrated by the number of shots. (The thickness of sample D noted here was 750 σ.) X-ray diffraction pattern shows that the film is c-axis orientated."
Formula: YBa₂Cu₃O_7-x
Informal Name: Y:123
Chemical Family: Y-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Critical Temperature for Y:123; [Y-Ba-Cu-O]

ΔTc (10%-90%) (K)	Critical Temperature (K)
0.5	87.6

Measurement Method: Four-probe method
"The DC magnetic field was provided by a superconducting magnet. The resistance was measured by the standard four-points method. The current was provided by a constant current source, and the voltage was measured by a nano-voltmeter. The measured voltage was averaged by reversing the current to cancel out any small offset bias voltage." No additional measurement details were noted.

Cautions: Evaluated Data

Critical Flux Density Hc2 for Y:123; [Y-Ba-Cu-O]

Field Direction ()	Temperature (K)	Crit.Mag.Flux Density Hc2 (T)
//c	81.9	9.9
//c	82.7	8.9
//c	83.6	8.9
//c	83.5	8.1
//c	83.7	7.4
//c	84.4	7.8
//c	85.2	6.9
//c	85.2	5.9
//c	86.2	3.9
//c	87.4	2.9
//c	87.4	2.4
//c	88.2	1.4
//c	88.2	0.2
//ab	87.8	9.8
//ab	87.7	9.0
//ab	88.1	7.9
//ab	87.9	7.0
//ab	88.2	3.9
//ab	88.5	2.9
//ab	88.9	2.0
//ab	88.5	1.4
//ab	88.7	0.9
//ab	88.2	0.2