Virtual Journal of Applications of Superconductivity -- August 15, 2010

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ELECTRONICS APPLICATIONS

Strong Coupling of a Quantum Oscillator to a Flux Qubit at Its Symmetry Point
A. Fedorov, A. K. Feofanov, P. Macha, P. Forn-Díaz, C. J. P. M. Harmans, and J. E. Mooij
Physical Review Letters   105, 060503 (2010) (4 pages)   
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Quantum logical gates with four-level superconducting quantum interference devices coupled to a superconducting resonator
Xiao-Ling He, Chui-Ping Yang, Sheng Li, Jun-Yan Luo, and Siyuan Han
Physical Review A   82, 024301 (2010) (4 pages)   
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Implementation of superconductor/ferromagnet/ superconductor -shifters in superconducting digital and quantum circuits
A. K. Feofanov, V. A. Oboznov, V. V. Bolginov, J. Lisenfeld, S. Poletto, V. V. Ryazanov, A. N. Rossolenko, M. Khabipov, D. Balashov, A. B. Zorin, P. N. Dmitriev, V. P. Koshelets, and A. V. Ustinov
Nature Physics   6, 593-597 (2010)   
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Measurement of the effect of quantum phase slips in a Josephson junction chain
I. M. Pop, I. Protopopov, F. Lecocq, Z. Peng, B. Pannetier, O. Buisson, and W. Guichard
Nature Physics   6, 589-592 (2010)   
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Electromagnetically Induced Transparency with Amplification in Superconducting Circuits
Jaewoo Joo, Jérôme Bourassa, Alexandre Blais, and Barry C. Sanders
Physical Review Letters   105, 073601 (2010) (4 pages)   
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Evidence for triplet superconductivity in Josephson junctions with barriers of the ferromagnetic Heusler alloy Cu₂MnAl
D. Sprungmann, K. Westerholt, H. Zabel, M. Weides, and H. Kohlstedt
Physical Review B   82, 060505 (2010) (4 pages)   
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Publisher's Note: Coherent Terahertz Emission of Intrinsic Josephson Junction Stacks in the Hot Spot Regime [Phys. Rev. Lett. 105, 057002 (2010)]
H. B. Wang, S. Guénon, B. Gross, J. Yuan, Z. G. Jiang, Y. Y. Zhong, M. Gruenzweig, A. Iishi, P. H. Wu, T. Hatano, D. Koelle, and R. Kleiner
Physical Review Letters   105, 069902 (2010) (1 page)   
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MATERIALS IMPORTANT FOR APPLICATIONS

Strength of correlations in electron- and hole-doped cuprates
Cdric Weber, Kristjan Haule, and Gabriel Kotliar
Nature Physics   6, 574-578 (2010)   
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Effect of LaAlO₃ twin-domain topology on local dc and microwave properties of cuprate films
A. P. Zhuravel, Steven M. Anlage, Stephen K. Remillard, A. V. Lukashenko, and A. V. Ustinov
Journal of Applied Physics   108, 033920 (2010) (8 pages)   
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How grain boundaries limit supercurrents in high-temperature superconductors
S. Graser, P. J. Hirschfeld, T. Kopp, R. Gutser, B. M. Andersen, and J. Mannhart
Nature Physics   6, 609-614 (2010)   
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Evidence for a temperature dependent anisotropy of the superconducting state parameters in underdoped SmBa₂Cu₃O_x
A. Kortyka, R. Puzniak, A. Wisniewski, M. Zehetmayer, H. W. Weber, C. Y. Tang, X. Yao, and K. Conder
Physical Review B   82, 054510 (2010) (9 pages)   
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Response of Cu_0.5(Tl_0.5−yHg_y)Ba₂Ca₃Zn₂Cu₂O₁₂₋ (y=0, 0.15, 0.25 and 0.35) superconductors in electric and magnetic fields
Adnan Younis and Shama Seher
Physica Scripta   82, 25701- (2010)   
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Saw-tooth pattern from flux jumps observed by high resolution M-H curves in MgB₂ thin films
Jae-Yeap Lee, Hu-Jong Lee, Myung-Hwa Jung, Sung-Ik Lee, Eun-Mi Choi, and W. N. Kang
Journal of Applied Physics   108, 033909 (2010) (5 pages)   
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Quantum chemical formulation of high-T_c superconductivity applied to -FeSe
Itai Panas
Physical Review B   82, 064508 (2010) (9 pages)   
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Iron isotope effect on the superconducting transition temperature and the crystal structure of FeSe_1−x
R Khasanov, M Bendele, K Conder, H Keller, E Pomjakushina, and V Pomjakushin
New Journal of Physics   12, 73024- (2010)   
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Macroscopic physical properties and spin dynamics in the layered superconductor Fe₁₊Te_1−xSe_x
Chishiro Michioka, Hiroto Ohta, Mami Matsui, Jinhu Yang, Kazuyoshi Yoshimura, and Minghu Fang
Physical Review B   82, 064506 (2010) (7 pages)   
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Superconductivity without Nesting in LiFeAs
S. V. Borisenko, V. B. Zabolotnyy, D. V. Evtushinsky, T. K. Kim, I. V. Morozov, A. N. Yaresko, A. A. Kordyuk, G. Behr, A. Vasiliev, R. Follath, and B. Büchner
Physical Review Letters   105, 067002 (2010) (4 pages)   
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Phase transitions and iron-ordered moment form factor in LaFeAsO
H.-F. Li, W. Tian, J.-Q. Yan, J. L. Zarestky, R. W. McCallum, T. A. Lograsso, and D. Vaknin
Physical Review B   82, 064409 (2010) (6 pages)   
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Nanoscopic coexistence of magnetic and superconducting states within the FeAs layers of CeFeAsO_1−xF_x
S. Sanna, R. De Renzi, T. Shiroka, G. Lamura, G. Prando, P. Carretta, M. Putti, A. Martinelli, M. R. Cimberle, M. Tropeano, and A. Palenzona
Physical Review B   82, 060508 (2010) (4 pages)   
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Large decrease in the critical temperature of superconducting LaFeAsO_0.85 compounds doped with 3% atomic weight of nonmagnetic Zn impurities
Y. F. Guo, Y. G. Shi, S. Yu, A. A. Belik, Y. Matsushita, M. Tanaka, Y. Katsuya, K. Kobayashi, I. Nowik, I. Felner, V. P. S. Awana, K. Yamaura, and E. Takayama-Muromachi
Physical Review B   82, 054506 (2010) (7 pages)   
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Thermoelectric properties of LaFeAsO_1−y at low temperature
K. Kihou, C. H. Lee, K. Miyazawa, P. M. Shirage, A. Iyo, and H. Eisaki
Journal of Applied Physics   108, 033703 (2010) (3 pages)   
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Flux dynamics associated with the second magnetization peak in the iron pnictide Ba_1−xK_xFe₂As₂
S. Salem-Sugui, Jr., L. Ghivelder, A. D. Alvarenga, L. F. Cohen, K. A. Yates, K. Morrison, J. L. Pimentel, Jr., Huiqian Luo, Zhaosheng Wang, and Hai-Hu Wen
Physical Review B   82, 054513 (2010) (8 pages)   
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Charge dynamics of Co-doped BaFe₂As₂
A Lucarelli, A Dusza, F Pfuner, P Lerch, J Analytis, J-H Chu, I Fisher, and L Degiorgi
New Journal of Physics   12, 73036- (2010)   
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Angle-resolved specific heat in iron-based superconductors: The case for a nodeless extended s-wave gap
A. V. Chubukov and I. Eremin
Physical Review B   82, 060504 (2010) (4 pages)   
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Nodes in the gap structure of the iron arsenide superconductor Ba(Fe_1−xCo_x)₂As₂ from c-axis heat transport measurements
J.-Ph. Reid, M. A. Tanatar, X. G. Luo, H. Shakeripour, N. Doiron-Leyraud, N. Ni, S. L. Bud'ko, P. C. Canfield, R. Prozorov, and Louis Taillefer
Physical Review B   82, 064501 (2010) (12 pages)   
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In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor
Jiun-Haw Chu, James G. Analytis, Kristiaan De Greve, Peter L. McMahon, Zahirul Islam, Yoshihisa Yamamoto, and Ian R. Fisher
Science   329, 824-826 (2010)   
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Doping evolution of the absolute value of the London penetration depth and superfluid density in single crystals of Ba(Fe_1−xCo_x)₂As₂
R. T. Gordon, H. Kim, N. Salovich, R. W. Giannetta, R. M. Fernandes, V. G. Kogan, T. Prozorov, S. L. Bud'ko, P. C. Canfield, M. A. Tanatar, and R. Prozorov
Physical Review B   82, 054507 (2010) (6 pages)   
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PROPERTIES IMPORTANT FOR APPLICATIONS

Fracture behaviors induced by electromagnetic force in a long cylindrical superconductor
Jun Zeng, You-He Zhou, and Hua-Dong Yong
Journal of Applied Physics   108, 033901 (2010) (8 pages)   
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Proposal to detect vortices above the superconducting transition temperature
Zoran Ristivojevic and M. R. Norman
Physical Review B   82, 060506 (2010) (3 pages)   
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Type-1.5 Superconducting State from an Intrinsic Proximity Effect in Two-Band Superconductors
Egor Babaev, Johan Carlström, and Martin Speight
Physical Review Letters   105, 067003 (2010) (4 pages)   
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