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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: High-Pressure Study on Mo-Stabilized Sr-Based 123 Compounds YSr2Cu2.8Mo0.2Oy and TbSr2Cu2.7Mo0.3Oy
Author(s): Q. Xiong, Y.Q. Wang, J.W. Chu, Y.Y. Sun, K. Matsuishi, H.H. Feng, P.H. Hor, and C.W. Chu
Publication: Physica C Volume: 198 Issue: Not Available Year: 1992 Page(s): 70-74
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Resistivity (normal state)

Materials and Properties

YSr:123; [Y-Sr-Cu(Mo)-O
TbSr:123; [Tb-Sr-Cu(Mo)-O]
Material Specification for YSr:123; [Y-Sr-Cu(Mo)-O] Process: Solid State Reaction
Notes: "Polycrystalline samples... were prepared by solid-state reaction of high purity Y2O3, SrCO3, CuO, and Mo combined in appropriate proportions. The thoroughly-mixed powder was compacted and fired for (about) 3 h at 1000 °C to 1050 °C in an O2-atmosphere, flowing at a rate of 250-500 cm3/min. It was then slow-cooled to room temperature for (about) 14 h."
Formula: YSr2Cu2.8Mo0.2Ox
Informal Name: YSr:123
Chemical Family: Y-Sr-Cu(Mo)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Critical Temperature for YSr:123; [Y-Sr-Cu(Mo)-O]
Pressure (GPa) Tc(onset) (K) Critical Temperature (K)
0.0 48 43
0.3 50 45
1.0 57 52
1.6 61 56
1.8 63 57
Measurement Method: Four-probe method
"Bar samples of dimensions... 4 x 1 x 0.5 mm3 were cut from the pellets... Platinum leads were pressure-attached to these samples with In-contacts. A standard four-probe technique operating at 16 Hz was employed... The temperature was measured with a chromel-alumel thermocouple and a Gethermometer in various ranges... The hydrostatic pressure environment was provided by a Be-Cu high-pressure clamp with a Teflon cell using 3M fluorinert liquid as the pressure medium. The pressure was determined by a superconducting Pb-manometer placed next to the sample inside the cell."

Cautions: Evaluated Data
Digitized data were obtained from Figure 3 of the paper.
Resistivity (normal state) for YSr:123; [Y-Sr-Cu(Mo)-O]
Pressure (GPa) Temperature (K) Resistivity (normal state) (mΩ·cm)
0.00 44 0.0
0.00 46 0.4
0.00 48 0.9
0.00 50 1.2
0.00 54 1.3
0.00 66 1.6
0.00 81 1.8
0.30 45 0.0
0.30 47 0.1
0.30 50 0.6
0.30 53 1.2
0.30 56 1.3
0.30 64 1.4
0.30 70 1.5
0.30 77 1.6
1.03 52 0.0
1.03 54 0.1
1.03 55 0.5
1.03 57 0.8
1.03 59 1.1
1.03 60 1.2
1.03 67 1.3
1.03 73 1.4
1.03 79 1.5
1.60 56 0.0
1.60 57 0.0
1.60 58 0.1
1.60 60 0.6
1.60 62 0.9
1.60 64 1.1
1.60 66 1.1
1.60 71 1.2
1.60 79 1.3
1.78 57 0.0
1.78 59 0.0
1.78 61 0.4
1.78 63 0.9
1.78 66 1.1
1.78 70 1.2
1.78 75 1.3
1.78 80 1.3
Measurement Method: Four-probe method
"Bar samples of dimensions... 4 x 1 x 0.5 mm3 were cut from the pellets... Platinum leads were pressure-attached to these samples with In-contacts. A standard four-probe technique operating at 16 Hz was employed... The temperature was measured with a chromel-alumel thermocouple and a Gethermometer in various ranges... The hydrostatic pressure environment was provided by a Be-Cu high-pressure clamp with a Teflon cell using 3M fluorinert liquid as the pressure medium. The pressure was determined by a superconducting Pb-manometer placed next to the sample inside the cell."

Cautions: Evaluated Data
Digitized data were obtained from Figure 2a of the paper.

Material Specification for TbSr:123; [Tb-Sr-Cu(Mo)-O] Process: Solid State Reaction
Notes: "Polycrystalline samples... were prepared by solid-state reaction of high purity Y2O3, SrCO3, CuO, and Mo combined in appropriate proportions. The thoroughly-mixed powder was compacted and fired for (about) 3 h at 1000 °C to 1050 °C in an O2-atmosphere, flowing at a rate of 250-500 cm3/min. It was then slow-cooled to room temperature for (about) 14 h."
Formula: TbSr2Cu2.7Mo0.3Ox
Informal Name: TbSr:123
Chemical Family: Tb-Sr-Cu(Mo)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:


Critical Temperature for TbSr:123; [Tb-Sr-Cu(Mo)-O]
Pressure (GPa) Tc(onset) (K) Critical Temperature (K)
0.0 33 28
0.4 34 29
1.0 36 31
1.2 38 32
1.65 39 33
Measurement Method: Four-probe method
"Bar samples of dimensions... 4 x 1 x 0.5 mm3 were cut from the pellets... Platinum leads were pressure-attached to these samples with In-contacts. A standard four-probe technique operating at 16 Hz was employed... The temperature was measured with a chromel-alumel thermocouple and a Gethermometer in various ranges... The hydrostatic pressure environment was provided by a Be-Cu high-pressure clamp with a Teflon cell using 3M fluorinert liquid as the pressure medium. The pressure was determined by a superconducting Pb-manometer placed next to the sample inside the cell."

Cautions: Evaluated Data
Digitized data were obtained from Figure 3 of the paper.
Resistivity (normal state) for TbSr:123; [Tb-Sr-Cu(Mo)-O]
Pressure (GPa) Temperature (K) Resistivity (normal state) (mΩ·cm)
0.00 28 0.0
0.00 30 0.5
0.00 31 1.0
0.00 34 1.3
0.00 38 1.4
0.00 47 1.5
0.00 68 1.5
0.39 28 0.0
0.39 31 0.3
0.39 33 0.8
0.39 35 1.2
0.39 42 1.3
0.39 52 1.3
0.39 62 1.4
0.39 71 1.4
0.91 31 0.0
0.91 33 0.4
0.91 35 0.7
0.91 36 1.0
0.91 39 1.2
0.91 45 1.2
0.91 54 1.3
0.91 62 1.3
0.91 71 1.3
1.22 32 0.0
1.22 34 0.3
1.22 36 0.7
1.22 39 1.0
1.22 44 1.1
1.22 54 1.2
1.22 63 1.2
1.22 70 1.3
1.65 34 0.0
1.65 36 0.3
1.65 38 0.6
1.65 40 0.9
1.65 42 1.0
1.65 47 1.1
1.65 55 1.1
1.65 62 1.2
1.65 70 1.2
Measurement Method: Four-probe method
"Bar samples of dimensions... 4 x 1 x 0.5 mm3 were cut from the pellets... Platinum leads were pressure-attached to these samples with In-contacts. A standard four-probe technique operating at 16 Hz was employed... The temperature was measured with a chromel-alumel thermocouple and a Gethermometer in various ranges... The hydrostatic pressure environment was provided by a Be-Cu high-pressure clamp with a Teflon cell using 3M fluorinert liquid as the pressure medium. The pressure was determined by a superconducting Pb-manometer placed next to the sample inside the cell."

Cautions: Evaluated Data
Digitized data were obtained from Figure 2b of the paper.