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: Transport Properties of the Pb-based Superconducting Cuprate (Pb_(1+x)/2Cu_(1-x)/2)Sr₂(Y_1-xCa_x)Cu₂O_y
Author(s): M. Kosuge, T. Maeda, K. Sakuyama, H. Yamauchi, N. Koshizuka, and S. Tanaka
Publication: Physica C Volume: 182 Issue: Not Available Year: 1991 Page(s): 157-162
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Resistivity (normal state), Hall Coefficient, Thermoelectric Power

Materials and Properties

PbSr:1212; [Pb-Sr-Y(Ca)-Cu-O]

Material Specification for PbSr:1212; [Pb-Sr-Y(Ca)-Cu-O] Process: Solid State Reaction
Notes: "The samples were prepared by a solid state reaction using high purity (>99.9%) powders of PbO, SirCO₃, Y₂O₃, CaCO₃ and CuO. These powders were weighed and mixed at the nominal composition... The mixed powders were calcined in air at 800 °C for 10 h. The fired materials were pulverized and pressed into parallelepiped bars of about 3x3x20 mm³. The bars were fired in O₂ gas flow at 1050 °C for 1 h followed by rapid cooling to 900 °C in a few minutes and slow cooling to room temperature at a rate of 1 deg/min. To make the electrical contacts, conductive gold paste was painted on the polished surface of the sintered pellets, then they were subjected to two kinds of heat treatment: (1) annealing at 800 °C for 1 h in O₂ gas flow followed by slow cooling to room temperature at a rate of 1 deg/min in the same atmosphere, or (2) annealing at 800 °C for 1 h in air followed by quenching to liquid nitrogen."
Formula: Pb_(1+x)/2Cu_(1-x)/2Sr₂Y_1-xCa_xCu₂O_y
Informal Name: PbSr:1212
Chemical Family: Pb-Sr-Y(Ca)-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Resistivity (normal state) for PbSr:1212; [Pb-Sr-Y(Ca)-Cu-O]

Process ()	x of Y_1-x (formula units)	Temperature (K)	Resistivity (normal state) (mΩ·cm)
Slow Cool	0	132	50
Slow Cool	0	145	43
Slow Cool	0	169	34
Slow Cool	0	203	26
Slow Cool	0	238	22
Slow Cool	0	274	19
Slow Cool	0.2	41	50
Slow Cool	0.2	50	42
Slow Cool	0.2	69	30
Slow Cool	0.2	102	22
Slow Cool	0.2	164	17
Slow Cool	0.2	209	16
Slow Cool	0.2	272	17
Slow Cool	0.3	22	50
Slow Cool	0.3	26	44
Slow Cool	0.3	32	36
Slow Cool	0.3	43	30
Slow Cool	0.3	58	23
Slow Cool	0.3	82	19
Slow Cool	0.3	109	17
Slow Cool	0.3	153	15
Slow Cool	0.3	218	15
Slow Cool	0.3	279	16
Slow Cool	0.35	14	50
Slow Cool	0.35	17	36
Slow Cool	0.35	26	26
Slow Cool	0.35	50	18
Slow Cool	0.35	90	14
Slow Cool	0.35	162	13
Slow Cool	0.35	216	14
Slow Cool	0.35	281	16
Quench	0.2	34	50
Quench	0.2	42	43
Quench	0.2	53	35
Quench	0.2	71	27
Quench	0.2	93	22
Quench	0.2	144	17
Quench	0.2	178	15
Quench	0.2	218	15
Quench	0.2	280	15
Quench	0.3	8	25
Quench	0.3	37	19
Quench	0.3	63	15
Quench	0.3	106	12
Quench	0.3	157	11
Quench	0.3	204	11
Quench	0.3	280	13
Quench	0.35	5	4
Quench	0.35	9	7
Quench	0.35	16	11
Quench	0.35	32	13
Quench	0.35	61	11
Quench	0.35	94	10
Quench	0.35	137	10
Quench	0.35	177	10
Quench	0.35	222	11
Quench	0.35	262	12
Quench	0.35	280	13

Measurement Method: Four-probe method
"The resistivity was measured by a standard four-probe method. The current which passed through the samples (about 2 x 2 x 10 mm³) was 1 mA to 5 mA. The temperature dependence was measured sweeping the temperature at a constant rate of less than 1 deg/min. The temperature was measured by a calibrated carbon glass resistance sensor at zero applied field and was kept constant by monitoring the He partial pressure in the presence of a magnetic field.

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

Hall Coefficient for PbSr:1212; [Pb-Sr-Y(Ca)-Cu-O]

Process ()	x of Y_1-x (formula units)	Temperature (K)	Hall Coefficient (mm³ /C)
Slow Cool	0	22	19
Slow Cool	0	26	17
Slow Cool	0	33	16
Slow Cool	0	51	15
Slow Cool	0	89	15
Slow Cool	0	132	14
Slow Cool	0	175	14
Slow Cool	0	218	14
Slow Cool	0	245	14
Slow Cool	0	269	13
Slow Cool	0.2	20	19
Slow Cool	0.2	27	15
Slow Cool	0.2	45	13
Slow Cool	0.2	90	12
Slow Cool	0.2	149	11
Slow Cool	0.2	196	11
Slow Cool	0.2	268	10
Slow Cool	0.3	71	11
Slow Cool	0.3	103	10
Slow Cool	0.3	133	10
Slow Cool	0.3	169	9
Slow Cool	0.3	217	9
Slow Cool	0.3	257	8
Slow Cool	0.3	282	8
Slow Cool	0.35	20	11
Slow Cool	0.35	70	10
Slow Cool	0.35	109	10
Slow Cool	0.35	152	9
Slow Cool	0.35	209	9
Slow Cool	0.35	261	8
Slow Cool	0.35	282	8
Quench	0.2	22	19
Quench	0.2	24	16
Quench	0.2	31	14
Quench	0.2	35	12
Quench	0.2	76	11
Quench	0.2	110	11
Quench	0.2	174	10
Quench	0.2	219	10
Quench	0.2	280	9
Quench	0.3	11	2
Quench	0.3	16	4
Quench	0.3	21	7
Quench	0.3	37	8
Quench	0.3	66	9
Quench	0.3	113	9
Quench	0.3	186	8
Quench	0.3	240	8
Quench	0.3	276	7
Quench	0.35	9	0.1
Quench	0.35	16	2
Quench	0.35	23	5
Quench	0.35	29	7
Quench	0.35	52	8
Quench	0.35	124	8
Quench	0.35	178	8
Quench	0.35	237	7
Quench	0.35	280	7

Measurement Method: Hall measurement
"The Hall measurement was performed in a shielded room using a rotating sampleholder. The Hall coefficient was measured using a current of 50 mA and a magnetic field of 8 T. The sample dimension was about 2 x 0.15 x 6 mm³. The Hall voltage was measured by a 10 nV resolution digitial voltmeter... each time the sample was rotated by 180° to change the effective direction of the magnetic field. The measuring interval was about 1 min. The temperature was swept at a rate less than 1 deg/min and monitored by the calibrated carbon glass resistance sensor or a platinum resistance sensor depending on the temperature range. To calculate the Hall coefficient we interpolated the Hall voltage by using third order Lagrange polynomials. The correction for the ohmic component due to misalignment of the Hall contacts was also performed by a calculation."

Cautions: Evaluated Data
Digitized data were obtained from Figure 3 of the paper.

Thermoelectric Power for PbSr:1212; [Pb-Sr-Y(Ca)-Cu-O]

Process ()	x of Y_1-x (formula units)	Temperature (K)	Thermoelectric Power (µV/K)
Slow Cool	0.30	49	40
Slow Cool	0.30	78	49
Slow Cool	0.30	119	62
Slow Cool	0.30	182	77
Slow Cool	0.30	221	81
Slow Cool	0.30	276	79
Slow Cool	0.30	315	74
Quench	0.30	48	35
Quench	0.30	88	48
Quench	0.30	122	57
Quench	0.30	162	66
Quench	0.30	193	68
Quench	0.30	229	69
Quench	0.30	271	67
Quench	0.30	312	63
Slow Cool	0.35	110	50
Slow Cool	0.35	127	50
Slow Cool	0.35	155	56
Slow Cool	0.35	170	60
Slow Cool	0.35	201	62
Slow Cool	0.35	229	63
Slow Cool	0.35	267	63
Slow Cool	0.35	298	61
Slow Cool	0.35	317	59
Quench	0.35	53	31
Quench	0.35	87	41
Quench	0.35	116	48
Quench	0.35	153	54
Quench	0.35	181	56
Quench	0.35	214	57
Quench	0.35	220	58
Quench	0.35	264	54
Quench	0.35	313	49

Measurement Method: Thermopower measurement
"The thermo-electromotive force of the samples with a temperature gradient of about 0.3 K was measured... High purity Cu wires of 20 µm diameter were used as a reference material. The sample temperature was measured by a calibrated Si diode sensor and the temperature gradient in the sample was measured using two pairs of copper-constantan thermocouples."

Cautions: Evaluated Data
Digitized data were obtained from Figure 4 of the paper.