Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films

G. Lamura; E. Di Gennaro; M. Salluzzo; A. Andreone; J. Le Cochec; A. Gauzzi; A. Gauzzi; C. Cantoni; M. Paranthaman; D. K. Christen; H. M. Christen; G. Giunchi; S. Ceresara

doi:10.1103/PhysRevB.65.020506

Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films

G. Lamura, E. Di Gennaro, M. Salluzzo, A. Andreone, J. Le Cochec, A. Gauzzi, A. Gauzzi, C. Cantoni, M. Paranthaman, D. K. Christen, H. M. Christen, G. Giunchi, S. Ceresara

Nanomaterials Chemistry Group

Research output: Contribution to journal › Article › peer-review

Abstract

We have performed accurate measurements of the temperature dependence of the magnetic penetration depth of the new intermetallic superconductor (formula presented) using a high resolution single coil mutual inductance technique. Both sintered pellets and thin films exhibiting critical temperature values ranging between 37 and 38.4 K have been studied. In the case of the film, for (formula presented) a clear exponential behavior is observed, which can be explained by a simple BCS s-wave model with a reduced value of the energy gap. On the contrary, pellets show no evidence of saturation, and the experimental results strictly follow a quadratic dependence down to the lowest temperatures. The experimental data on sintered samples can be explained in the framework of a conventional s-wave BCS theory using a two-band model.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.65.020506
State	Published - 2002

Access to Document

10.1103/PhysRevB.65.020506

Cite this

Lamura, G., Di Gennaro, E., Salluzzo, M., Andreone, A., Le Cochec, J., Gauzzi, A., Gauzzi, A., Cantoni, C., Paranthaman, M., Christen, D. K., Christen, H. M., Giunchi, G., & Ceresara, S. (2002). Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films. Physical Review B - Condensed Matter and Materials Physics, 65(2), 1-4. https://doi.org/10.1103/PhysRevB.65.020506

@article{e26750fcb6f14fdda885e3fae7b051e2,

title = "Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films",

abstract = "We have performed accurate measurements of the temperature dependence of the magnetic penetration depth of the new intermetallic superconductor (formula presented) using a high resolution single coil mutual inductance technique. Both sintered pellets and thin films exhibiting critical temperature values ranging between 37 and 38.4 K have been studied. In the case of the film, for (formula presented) a clear exponential behavior is observed, which can be explained by a simple BCS s-wave model with a reduced value of the energy gap. On the contrary, pellets show no evidence of saturation, and the experimental results strictly follow a quadratic dependence down to the lowest temperatures. The experimental data on sintered samples can be explained in the framework of a conventional s-wave BCS theory using a two-band model.",

author = "G. Lamura and {Di Gennaro}, E. and M. Salluzzo and A. Andreone and {Le Cochec}, J. and A. Gauzzi and A. Gauzzi and C. Cantoni and M. Paranthaman and Christen, {D. K.} and Christen, {H. M.} and G. Giunchi and S. Ceresara",

year = "2002",

doi = "10.1103/PhysRevB.65.020506",

language = "English",

volume = "65",

pages = "1--4",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "2",

}

Lamura, G, Di Gennaro, E, Salluzzo, M, Andreone, A, Le Cochec, J, Gauzzi, A, Gauzzi, A, Cantoni, C, Paranthaman, M, Christen, DK, Christen, HM, Giunchi, G & Ceresara, S 2002, 'Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films', Physical Review B - Condensed Matter and Materials Physics, vol. 65, no. 2, pp. 1-4. https://doi.org/10.1103/PhysRevB.65.020506

TY - JOUR

T1 - Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films

AU - Lamura, G.

AU - Di Gennaro, E.

AU - Salluzzo, M.

AU - Andreone, A.

AU - Le Cochec, J.

AU - Gauzzi, A.

AU - Cantoni, C.

AU - Paranthaman, M.

AU - Christen, D. K.

AU - Christen, H. M.

AU - Giunchi, G.

AU - Ceresara, S.

PY - 2002

Y1 - 2002

N2 - We have performed accurate measurements of the temperature dependence of the magnetic penetration depth of the new intermetallic superconductor (formula presented) using a high resolution single coil mutual inductance technique. Both sintered pellets and thin films exhibiting critical temperature values ranging between 37 and 38.4 K have been studied. In the case of the film, for (formula presented) a clear exponential behavior is observed, which can be explained by a simple BCS s-wave model with a reduced value of the energy gap. On the contrary, pellets show no evidence of saturation, and the experimental results strictly follow a quadratic dependence down to the lowest temperatures. The experimental data on sintered samples can be explained in the framework of a conventional s-wave BCS theory using a two-band model.

AB - We have performed accurate measurements of the temperature dependence of the magnetic penetration depth of the new intermetallic superconductor (formula presented) using a high resolution single coil mutual inductance technique. Both sintered pellets and thin films exhibiting critical temperature values ranging between 37 and 38.4 K have been studied. In the case of the film, for (formula presented) a clear exponential behavior is observed, which can be explained by a simple BCS s-wave model with a reduced value of the energy gap. On the contrary, pellets show no evidence of saturation, and the experimental results strictly follow a quadratic dependence down to the lowest temperatures. The experimental data on sintered samples can be explained in the framework of a conventional s-wave BCS theory using a two-band model.

UR - http://www.scopus.com/inward/record.url?scp=85038309331&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.65.020506

DO - 10.1103/PhysRevB.65.020506

M3 - Article

AN - SCOPUS:85038309331

SN - 1098-0121

VL - 65

SP - 1

EP - 4

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 2

ER -

Magnetic penetration depth measurements in (formula presented) sintered pellets and thin films

Abstract

Access to Document

Other files and links

Fingerprint

Cite this