Microwave and terahertz surface resistance of MgB 2 thin films

B. B. Jin, T. Dahm, F. Kadlec, P. Kuzel, A. I. Gubin, Eun Mi Choi, Hyun Jung Kim, Sung Ik Lee, W. N. Kang, S. F. Wang, Y. L. Zhou, A. V. Pogrebnyakov, Joan Marie Redwing, X. X. Xi, N. Klein

Research output: Contribution to journalArticle

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Abstract

The knowledge of the surface resistance R s of superconducting thin film at microwave and terahertz (THz) regions is significant to design, make and assess superconducting microwave and THz electronic devices. In this paper we reported the R s of MgB 2 films at microwave and THz measured with sapphire resonator technique and the time-domain THz spectroscopy, respectively. Some interesting results are revealed in the following: (1) A clear correlation is found between R s and normal-state resistivity right above T c , ρ 0 , i.e., R s decreases almost linearly with the decrease of ρ 0 . (2) A low residual R s , less than 50 μΩ at 18 GHz is achieved by different deposition techniques. In addition, between 10 and 14 K, MgB 2 has the lowest R s compared with two other superconductors Nb 3 Sn and the high-temperature superconductor YBa 2 Cu 3 O 7-δ (YBCO). (3) From THz measurement it is found that the R s of MgB 2 up to around 1 THz is lower than that of copper and YBCO at the temperature below 25 K. (4) The frequency dependence of R s follows ω n , where ω is angular frequency, and n is power index. However, n changes from 1.9 at microwave to 1.5 at THz. The above results clearly give the evidences that MgB 2 thin film, compared with other superconductors, is of advantage to make superconducting circuits working in the microwave and THz regions.

Original languageEnglish (US)
Pages (from-to)617-623
Number of pages7
JournalJournal of Superconductivity and Novel Magnetism
Volume19
Issue number7-8
DOIs
StatePublished - Nov 1 2006

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Surface resistance
Microwaves
microwaves
Thin films
thin films
Superconducting materials
Terahertz spectroscopy
Superconducting films
High temperature superconductors
Aluminum Oxide
Sapphire
high temperature superconductors
Copper
Resonators
sapphire
resonators
copper
electrical resistivity
Networks (circuits)
electronics

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Jin, B. B., Dahm, T., Kadlec, F., Kuzel, P., Gubin, A. I., Choi, E. M., ... Klein, N. (2006). Microwave and terahertz surface resistance of MgB 2 thin films Journal of Superconductivity and Novel Magnetism, 19(7-8), 617-623. https://doi.org/10.1007/s10948-006-0124-4
Jin, B. B. ; Dahm, T. ; Kadlec, F. ; Kuzel, P. ; Gubin, A. I. ; Choi, Eun Mi ; Kim, Hyun Jung ; Lee, Sung Ik ; Kang, W. N. ; Wang, S. F. ; Zhou, Y. L. ; Pogrebnyakov, A. V. ; Redwing, Joan Marie ; Xi, X. X. ; Klein, N. / Microwave and terahertz surface resistance of MgB 2 thin films In: Journal of Superconductivity and Novel Magnetism. 2006 ; Vol. 19, No. 7-8. pp. 617-623.
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abstract = "The knowledge of the surface resistance R s of superconducting thin film at microwave and terahertz (THz) regions is significant to design, make and assess superconducting microwave and THz electronic devices. In this paper we reported the R s of MgB 2 films at microwave and THz measured with sapphire resonator technique and the time-domain THz spectroscopy, respectively. Some interesting results are revealed in the following: (1) A clear correlation is found between R s and normal-state resistivity right above T c , ρ 0 , i.e., R s decreases almost linearly with the decrease of ρ 0 . (2) A low residual R s , less than 50 μΩ at 18 GHz is achieved by different deposition techniques. In addition, between 10 and 14 K, MgB 2 has the lowest R s compared with two other superconductors Nb 3 Sn and the high-temperature superconductor YBa 2 Cu 3 O 7-δ (YBCO). (3) From THz measurement it is found that the R s of MgB 2 up to around 1 THz is lower than that of copper and YBCO at the temperature below 25 K. (4) The frequency dependence of R s follows ω n , where ω is angular frequency, and n is power index. However, n changes from 1.9 at microwave to 1.5 at THz. The above results clearly give the evidences that MgB 2 thin film, compared with other superconductors, is of advantage to make superconducting circuits working in the microwave and THz regions.",
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Jin, BB, Dahm, T, Kadlec, F, Kuzel, P, Gubin, AI, Choi, EM, Kim, HJ, Lee, SI, Kang, WN, Wang, SF, Zhou, YL, Pogrebnyakov, AV, Redwing, JM, Xi, XX & Klein, N 2006, ' Microwave and terahertz surface resistance of MgB 2 thin films ', Journal of Superconductivity and Novel Magnetism, vol. 19, no. 7-8, pp. 617-623. https://doi.org/10.1007/s10948-006-0124-4

Microwave and terahertz surface resistance of MgB 2 thin films . / Jin, B. B.; Dahm, T.; Kadlec, F.; Kuzel, P.; Gubin, A. I.; Choi, Eun Mi; Kim, Hyun Jung; Lee, Sung Ik; Kang, W. N.; Wang, S. F.; Zhou, Y. L.; Pogrebnyakov, A. V.; Redwing, Joan Marie; Xi, X. X.; Klein, N.

In: Journal of Superconductivity and Novel Magnetism, Vol. 19, No. 7-8, 01.11.2006, p. 617-623.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Microwave and terahertz surface resistance of MgB 2 thin films

AU - Jin, B. B.

AU - Dahm, T.

AU - Kadlec, F.

AU - Kuzel, P.

AU - Gubin, A. I.

AU - Choi, Eun Mi

AU - Kim, Hyun Jung

AU - Lee, Sung Ik

AU - Kang, W. N.

AU - Wang, S. F.

AU - Zhou, Y. L.

AU - Pogrebnyakov, A. V.

AU - Redwing, Joan Marie

AU - Xi, X. X.

AU - Klein, N.

PY - 2006/11/1

Y1 - 2006/11/1

N2 - The knowledge of the surface resistance R s of superconducting thin film at microwave and terahertz (THz) regions is significant to design, make and assess superconducting microwave and THz electronic devices. In this paper we reported the R s of MgB 2 films at microwave and THz measured with sapphire resonator technique and the time-domain THz spectroscopy, respectively. Some interesting results are revealed in the following: (1) A clear correlation is found between R s and normal-state resistivity right above T c , ρ 0 , i.e., R s decreases almost linearly with the decrease of ρ 0 . (2) A low residual R s , less than 50 μΩ at 18 GHz is achieved by different deposition techniques. In addition, between 10 and 14 K, MgB 2 has the lowest R s compared with two other superconductors Nb 3 Sn and the high-temperature superconductor YBa 2 Cu 3 O 7-δ (YBCO). (3) From THz measurement it is found that the R s of MgB 2 up to around 1 THz is lower than that of copper and YBCO at the temperature below 25 K. (4) The frequency dependence of R s follows ω n , where ω is angular frequency, and n is power index. However, n changes from 1.9 at microwave to 1.5 at THz. The above results clearly give the evidences that MgB 2 thin film, compared with other superconductors, is of advantage to make superconducting circuits working in the microwave and THz regions.

AB - The knowledge of the surface resistance R s of superconducting thin film at microwave and terahertz (THz) regions is significant to design, make and assess superconducting microwave and THz electronic devices. In this paper we reported the R s of MgB 2 films at microwave and THz measured with sapphire resonator technique and the time-domain THz spectroscopy, respectively. Some interesting results are revealed in the following: (1) A clear correlation is found between R s and normal-state resistivity right above T c , ρ 0 , i.e., R s decreases almost linearly with the decrease of ρ 0 . (2) A low residual R s , less than 50 μΩ at 18 GHz is achieved by different deposition techniques. In addition, between 10 and 14 K, MgB 2 has the lowest R s compared with two other superconductors Nb 3 Sn and the high-temperature superconductor YBa 2 Cu 3 O 7-δ (YBCO). (3) From THz measurement it is found that the R s of MgB 2 up to around 1 THz is lower than that of copper and YBCO at the temperature below 25 K. (4) The frequency dependence of R s follows ω n , where ω is angular frequency, and n is power index. However, n changes from 1.9 at microwave to 1.5 at THz. The above results clearly give the evidences that MgB 2 thin film, compared with other superconductors, is of advantage to make superconducting circuits working in the microwave and THz regions.

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