Material Specification for Gd:123; [Gd-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite D.T. Morelli et al., Phys. Rev. B, Vol. 36, 3917 (1987), and summarize the procedure as follows. "Samples were fabricated according to the standard recipes..." No additional processing details were noted.
Formula: GdBa1.98Cu3.05O7
Informal Name: Gd:123
Chemical Family: Gd-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Density (mass) for Gd:123; [Gd-Ba-Cu-O]
| Theoretical Density (g/cm3) |
Density (g cm-3) |
| 7.02 |
3.83 |
Measurement Method: Unknown density method
Cautions: Unevaluated Data
No measurement details were noted.
Resistivity (normal state) for Gd:123; [Gd-Ba-Cu-O]
| Temperature (K) |
Resistivity (normal state) (mΩ·cm) |
| 92 |
0.2 |
| 93 |
2.0 |
| 95 |
4.0 |
| 132 |
4.7 |
| 176 |
5.0 |
| 207 |
5.2 |
| 252 |
5.7 |
| 297 |
6.2 |
Measurement Method: Electrical resistance method
"... samples were cut from a pressed disk into parallelepipeds of approximate dimensions 1x2x15 mm
3. These were glued over an insulating layer of cigarette paper onto the cold head using GE 7031 varnish. Current and voltage probes were 40 gauge copper wires attached with a small drop of silver paint. In order to ensure ohmic behavior of the contacts, the measuring current was varied between 1 mA and 100 mA, with only a few percent change in the resistance. The current was then fixed at 10 mA for the remaining measurements. The cold-tip temperature was controlled using a Lakeshore model 520 temperature controller in conjunction with calibrated platinum and carbon-glass thermometers."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 2 of the paper.
Thermal Conductivity for Gd:123; [Gd-Ba-Cu-O]
| Temperature (K) |
Thermal Conductivity (W m-1 K-1) |
| 12 |
0.19 |
| 22 |
0.36 |
| 39 |
0.56 |
| 46 |
0.57 |
| 49 |
0.59 |
| 56 |
0.58 |
| 100 |
0.52 |
| 111 |
0.53 |
| 140 |
0.52 |
Measurement Method: Thermal conductivity method
"The transport properties were measured using a closed-cycle helium-4 cryostat capable of reaching 8 K... it is advantageous, as far as heat conduction experiments are concerned, to have a rather short, fat sample in order to maximize heat conduction through the sample relative to heat losses. Thus, we used samples of nominal dimensions of 3x5x10 mm
3 for thermal conductivity measurements... Briefly, one end of the sample was glued to the cold tip, and a small metal film heater was attached on the free end. The temperature difference across the sample as heat flowed through it was measured with a Chromel-constantan thermocouple. In the low-temperature (2-6 K) measurements, the thermocouple was replaced by a pair of calibrated germanium resistance thermometers which have an accuracy of better than 0.5 mK in this temperature range."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 4 of the paper.
Specific Heat for Gd:123; [Gd-Ba-Cu-O]
| Temperature (K) |
Specific Heat (J kg-1 K-1) |
| 229 |
340 |
| 271 |
370 |
| 349 |
400 |
| 420 |
420 |
| 490 |
440 |
Measurement Method: Specific heat method
"The heat-capacity measurements were performed on a Perkin-Elmer model DSC-2 differential scanning calorimeter (DSC) in the temperature range 240-490 K... Each DSC sample, a rectangular slab weighing from 115 to 185 mg, was placed in a small aluminum pan which was mounted in the calorimeter sample holder; an almost identical empty aluminum pan was mounted in the DSC reference holder. The specific-heat measurement was performed by scanning the temperature at 20 K/min over the range of interest while monitoring the excess power required to maintain the sample temperature equal to that of the reference. This power curve was then corrected for differences in the thermal characteristics of the two aluminum pans... to yield a corrected differential power curve proportional to the specific heat. The proportionality constant was obtained from a determination of the melting enthalpy of indium."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-60% of the theoretically possible densities.
Digitized data were obtained from Figure 6 of the paper.
Material Specification for Dy:123; [Dy-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite D.T. Morelli et al., Phys. Rev. B, Vol. 36, 3917 (1987), and summarize the procedure as follows. "Samples were fabricated according to the standard recipes..." No additional processing details were noted.
Formula: DyBa1.97Cu3.06O7
Informal Name: Dy:123
Chemical Family: Dy-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Density (mass) for Dy:123; [Dy-Ba-Cu-O]
| Theoretical Density (g/cm3) |
Density (g cm-3) |
| 7.07 |
4.48 |
Measurement Method: Unknown density method
Cautions: Unevaluated Data
Resistivity (normal state) for Dy:123; [Dy-Ba-Cu-O]
| Temperature (K) |
Resistivity (normal state) (mΩ·cm) |
| 92 |
0.5 |
| 92 |
3.2 |
| 95 |
4.7 |
| 132 |
5.2 |
| 175 |
5.4 |
| 234 |
5.9 |
| 297 |
6.4 |
Measurement Method: Electrical resistance method
"... samples were cut from a pressed disk into parallelepipeds of approximate dimensions 1x2x15 mm
3. These were glued over an insulating layer of cigarette paper onto the cold head using GE 7031 varnish. Current and voltage probes were 40 gauge copper wires attached with a small drop of silver paint. In order to ensure ohmic behavior of the contacts, the measuring current was varied between 1 mA and 100 mA, with only a few percent change in the resistance. The current was then fixed at 10 mA for the remaining measurements. The cold-tip temperature was controlled using a Lakeshore model 520 temperature controller in conjunction with calibrated platinum and carbon-glass thermometers."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-60% of the theoretically possible densities.
Digitized data were obtained from Figure 2 of the paper.
Thermal Conductivity for Dy:123; [Dy-Ba-Cu-O]
| Temperature (K) |
Thermal Conductivity (W m-1 K-1) |
| 11 |
0.17 |
| 24 |
0.39 |
| 41 |
0.71 |
| 60 |
0.84 |
| 63 |
0.83 |
| 68 |
0.84 |
| 83 |
0.83 |
| 92 |
0.81 |
| 103 |
0.81 |
Measurement Method: Thermal conductivity method
"The transport properties were measured using a closed-cycle helium-4 cryostat capable of reaching 8 K... it is advantageous, as far as heat conduction experiments are concerned, to have a rather short, fat sample in order to maximize heat conduction through the sample relative to heat losses. Thus, we used samples of nominal dimensions of 3x5x10 mm
3 for thermal conductivity measurements... Briefly, one end of the sample was glued to the cold tip, and a small metal film heater was attached on the free end. The temperature difference across the sample as heat flowed through it was measured with a Chromel-constantan thermocouple. In the low-temperature (2-6 K) measurements, the thermocouple was replaced by a pair of calibrated germanium resistance thermometers which have an accuracy of better than 0.5 mK in this temperature range."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 4 of the paper.
Specific Heat for Dy:123; [Dy-Ba-Cu-O]
| Temperature (K) |
Specific Heat (J kg-1 K-1) |
| 229 |
350 |
| 261 |
370 |
| 312 |
390 |
| 401 |
410 |
| 492 |
430 |
Measurement Method: Specific heat method
"The heat-capacity measurements were performed on a Perkin-Elmer model DSC-2 differential scanning calorimeter (DSC) in the temperature range 240-490 K... Each DSC sample, a rectangular slab weighing from 115 to 185 mg, was placed in a small aluminum pan which was mounted in the calorimeter sample holder; an almost identical empty aluminum pan was mounted in the DSC reference holder. The specific-heat measurement was performed by scanning the temperature at 20 K/min over the range of interest while monitoring the excess power required to maintain the sample temperature equal to that of the reference. This power curve was then corrected for differences in the thermal characteristics of the two aluminum pans... to yield a corrected differential power curve proportional to the specific heat. The proportionality constant was obtained from a determination of the melting enthalpy of indium."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 6 of the paper.
Material Specification for Eu:123; [Eu-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite D.T. Morelli et al., Phys. Rev. B, Vol. 36, 3917 (1987), and summarize the procedure as follows. "Samples were fabricated according to the standard recipes..." No additional processing details were noted.
Formula: EuBa1.93Cu2.92O7
Informal Name: Eu:123
Chemical Family: Eu-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Density (mass) for Eu:123; [Eu-Ba-Cu-O]
| Theoretical Density (g/cm3) |
Density (g cm-3) |
| 6.97 |
3.69 |
Measurement Method: Unknown density method
Cautions: Unevaluated Data
Resistivity (normal state) for Eu:123; [Eu-Ba-Cu-O]
| Temperature (K) |
Resistivity (normal state) (mΩ·cm) |
| 90 |
0.2 |
| 90 |
4.5 |
| 95 |
8.4 |
| 157 |
9.2 |
| 234 |
9.7 |
| 297 |
10.2 |
Measurement Method: Electrical resistance method
"... samples were cut from a pressed disk into parallelepipeds of approximate dimensions 1x2x15 mm
3. These were glued over an insulating layer of cigarette paper onto the cold head using GE 7031 varnish. Current and voltage probes were 40 gauge copper wires attached with a small drop of silver paint. In order to ensure ohmic behavior of the contacts, the measuring current was varied between 1 mA and 100 mA, with only a few percent change in the resistance. The current was then fixed at 10 mA for the remaining measurements. The cold-tip temperature was controlled using a Lakeshore model 520 temperature controller in conjunction with calibrated platinum and carbon-glass thermometers."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretical possible densities.
Digitized data were obtained from Figure 2 of the paper.
Thermal Conductivity for Eu:123; [Eu-Ba-Cu-O]
| Temperature (K) |
Thermal Conductivity (W m-1 K-1) |
| 11 |
0.28 |
| 19 |
0.48 |
| 23 |
0.61 |
| 28 |
0.68 |
| 30 |
0.73 |
| 38 |
0.81 |
| 44 |
0.82 |
| 50 |
0.87 |
| 61 |
0.87 |
| 73 |
0.87 |
| 83 |
0.85 |
| 92 |
0.85 |
| 95 |
0.84 |
| 100 |
0.85 |
Measurement Method: Thermal conductivity method
"The transport properties were measured using a closed-cycle helium-4 cryostat capable of reaching 8 K... it is advantageous, as far as heat conduction experiments are concerned, to have a rather short, fat sample in order to maximize heat conduction through the sample relative to heat losses. Thus, we used samples of nominal dimensions of 3x5x10 mm
3 for thermal conductivity measurements... Briefly, one end of the sample was glued to the cold tip, and a small metal film heater was attached on the free end. The temperature difference across the sample as heat flowed through it was measured with a Chromel-constantan thermocouple. In the low-temperature (2-6 K) measurements, the thermocouple was replaced by a pair of calibrated germanium resistance thermometers which have an accuracy of better than 0.5 mK in this temperature range."
Cautions: Evaluated Data
The measured mas densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 4 of the paper.
Specific Heat for Eu:123; [Eu-Ba-Cu-O]
| Temperature (K) |
Specific Heat (J kg-1 K-1) |
| 229 |
360 |
| 280 |
380 |
| 360 |
410 |
| 420 |
430 |
| 491 |
440 |
Measurement Method: Specific heat method
"The heat-capacity measurements were performed on a Perkin-Elmer model DSC-2 differential scanning calorimeter (DSC) in the temperature range 240-490 K... Each DSC sample, a rectangular slab weighing from 115 to 185 mg, was placed in a small aluminum pan which was mounted in the calorimeter sample holder; an almost identical empty aluminum pan was mounted in the DSC reference holder. The specific-heat measurement was performed by scanning the temperature at 20 K/min over the range of interest while monitoring the excess power required to maintain the sample temperature equal to that of the reference. This power curve was then corrected for differences in the thermal characteristics of the two aluminum pans... to yield a corrected differential power curve proportional to the specific heat. The proportionality constant was obtained from a determination of the melting enthalpy of indium."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 6 of the paper.
Material Specification for Y:123; [Y-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite D.T. Morelli et al., Phys. Rev. B, Vol. 36, 3917 (1987), and summarize the procedure as follows. "Samples were fabricated according to the standard recipes..." No additional processing details were noted.
Formula: YBa2.01Cu3.11O7
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:
Density (mass) for Y:123; [Y-Ba-Cu-O]
| Theoretical Density (g/cm3) |
Density (g cm-3) |
| 6.37 |
2.72 |
Measurement Method: Unknown density method
Cautions: Unevaluated Data
Resistivity (normal state) for Y:123; [Y-Ba-Cu-O]
| Temperature (K) |
Resistivity (normal state) (mΩ·cm) |
| 87 |
0.2 |
| 87 |
5.4 |
| 89 |
7.9 |
| 92 |
10.4 |
| 95 |
10.9 |
| 138 |
13.4 |
| 191 |
15.6 |
| 210 |
16.3 |
| 229 |
16.6 |
| 258 |
18.3 |
| 297 |
18.6 |
Measurement Method: Electrical resistance method
"... samples were cut from a pressed disk into parallelepipeds of approximate dimensions 1x2x15 mm
3. These were glued over an insulating layer of cigarette paper onto the cold head using GE 7031 varnish. Current and voltage probes were 40 gauge copper wires attached with a small drop of silver paint. In order to ensure ohmic behavior of the contacts, the measuring current was varied between 1 mA and 100 mA, with only a few percent change in the resistance. The current was then fixed at 10 mA for the remaining measurements. The cold-tip temperature was controlled using a Lakeshore model 520 temperature controller in conjunction with calibrated platinum and carbon-glass thermometers."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 2 of the paper.
Thermal Conductivity for Y:123; [Y-Ba-Cu-O]
| Temperature (K) |
Thermal Conductivity (W m-1 K-1) |
| 3 |
0.01 |
| 4 |
0.02 |
| 7 |
0.07 |
| 10 |
0.08 |
| 26 |
0.31 |
| 37 |
0.44 |
| 46 |
0.45 |
| 53 |
0.47 |
| 60 |
0.47 |
| 71 |
0.47 |
| 84 |
0.45 |
| 89 |
0.45 |
| 90 |
0.42 |
| 96 |
0.43 |
| 106 |
0.43 |
| 109 |
0.44 |
| 132 |
0.42 |
Measurement Method: Thermal conductivity method
"The transport properties were measured using a closed-cycle helium-4 cryostat capable of reaching 8 K... it is advantageous, as far as heat conduction experiments are concerned, to have a rather short, fat sample in order to maximize heat conduction through the sample relative to heat losses. Thus, we used samples of nominal dimensions of 3x5x10 mm
3 for thermal conductivity measurements... Briefly, one end of the sample was glued to the cold tip, and a small metal film heater was attached on the free end. The temperature difference across the sample as heat flowed through it was measured with a Chromel-constantan thermocouple. In the low-temperature (2-6 K) measurements, the thermocouple was replaced by a pair of calibrated germanium resistance thermometers which have an accuracy of better than 0.5 mK in this temperature range."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 4 of the paper.
Specific Heat for Y:123; [Y-Ba-Cu-O]
| Temperature (K) |
Specific Heat (J kg-1 K-1) |
| 231 |
370 |
| 291 |
410 |
| 351 |
440 |
| 400 |
450 |
| 492 |
470 |
Measurement Method: Specific heat method
"The heat-capacity measurements were performed on a Perkin-Elmer model DSC-2 differential scanning calorimeter (DSC) in the temperature range 240-490 K... Each DSC sample, a rectangular slab weighing from 115 to 185 mg, was placed in a small aluminum pan which was mounted in the calorimeter sample holder; an almost identical empty aluminum pan was mounted in the DSC reference holder. The specific-heat measurement was performed by scanning the temperature at 20 K/min over the range of interest while monitoring the excess power required to maintain the sample temperature equal to that of the reference. This power curve was then corrected for differences in the thermal characteristics of the two aluminum pans... to yield a corrected differential power curve proportional to the specific heat. The proportionality constant was obtained from a determination of the melting enthalpy of indium."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 6 of the paper.
Material Specification for Er:123; [Er-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite D.T. Morelli et al., Phys. Rev. B, Vol. 36, 3917 (1987), and summarize the procedure as follows. "Samples were fabricated according to the standard recipes..." No additional processing details were noted.
Formula: ErBa2.03Cu3.05O7
Informal Name: Er:123
Chemical Family: Er-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Density (mass) for Er:123; [Er-Ba-Cu-O]
| Theoretical Density (g/cm3) |
Density (g cm-3) |
| 7.12 |
3.01 |
Measurement Method: Unknown density method
Cautions: Unevaluated Data
Resistivity (normal state) for Er:123; [Er-Ba-Cu-O]
| Temperature (K) |
Resistivity (normal state) (mΩ·cm) |
| 87 |
0.0 |
| 90 |
2.0 |
| 93 |
6.4 |
| 103 |
17.8 |
| 116 |
18.6 |
| 125 |
19.1 |
| 178 |
20.3 |
| 194 |
20.8 |
| 201 |
20.8 |
| 221 |
21.5 |
| 229 |
21.5 |
| 299 |
25.3 |
Measurement Method: Electrical resistance method
"... samples were cut from a pressed disk into parallelepipeds of approximate dimensions 1x2x15 mm
3. These were glued over an insulating layer of cigarette paper onto the cold head using GE 7031 varnish. Current and voltage probes were 40 gauge copper wires attached with a small drop of silver paint. In order to ensure ohmic behavior of the contacts, the measuring current was varied between 1 mA and 100 mA, with only a few percent change in the resistance. The current was then fixed at 10 mA for the remaining measurements. The cold-tip temperature was controlled using a Lakeshore model 520 temperature controller in conjunction with calibrated platinum and carbon-glass thermometers."
Cautions: Evaluated Data
The measured densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 2 of the paper.
Thermal Conductivity for Er:123; [Er-Ba-Cu-O]
| Temperature (K) |
Thermal Conductivity (W m-1 K-1) |
| 9 |
0.13 |
| 24 |
0.39 |
| 27 |
0.45 |
| 33 |
0.54 |
| 49 |
0.60 |
| 55 |
0.64 |
| 59 |
0.64 |
| 71 |
0.62 |
| 82 |
0.56 |
| 91 |
0.53 |
| 98 |
0.53 |
| 126 |
0.51 |
| 140 |
0.51 |
Measurement Method: Thermal conductivity method
"The transport properties were measured using a closed-cycle helium-4 cryostat capable of reaching 8 K... it is advantageous, as far as heat conduction experiments are concerned, to have a rather short, fat sample in order to maximize heat conduction through the sample relative to heat losses. Thus, we used samples of nominal dimensions of 3x5x10 mm
3 for thermal conductivity measurements... Briefly, one end of the sample was glued to the cold tip, and a small metal film heater was attached on the free end. The temperature difference across the sample as heat flowed through it was measured with a Chromel-constantan thermocouple. In the low-temperature (2-6 K) measurements, the thermocouple was replaced by a pair of calibrated germanium resistance thermometers which have an accuracy of better than 0.5 mK in this temperature range."
Cautions: Evaluated Data
The measured mass densities of the specimens were 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 4 of the paper.
Specific Heat for Er:123; [Er-Ba-Cu-O]
| Temperature (K) |
Specific Heat (J kg-1 K-1) |
| 229 |
340 |
| 291 |
370 |
| 350 |
390 |
| 410 |
410 |
| 492 |
430 |
Measurement Method: Specific heat method
"The heat-capacity measurements were performed on a Perkin-Elmer model DSC-2 differential scanning calorimeter (DSC) in the temperature range 240-490 K... Each DSC sample, a rectangular slab weighing from 115 to 185 mg, was placed in a small aluminum pan which was mounted in the calorimeter sample holder; an almost identical empty aluminum pan was mounted in the DSC reference holder. The specific-heat measurement was performed by scanning the temperature at 20 K/min over the range of interest while monitoring the excess power required to maintain the sample temperature equal to that of the reference. This power curve was then corrected for differences in the thermal characteristics of the two aluminum pans... to yield a corrected differential power curve proportional to the specific heat. The proportionality constant was obtained from a determination of the melting enthalpy of indium."
Cautions: Evaluated Data
The measured mass densities of the specimens were only 40-65% of the theoretically possible densities.
Digitized data were obtained from Figure 6 of the paper.
