Matching effect and dynamic phases of vortex matter in Bi2Sr2CaCu2O8 nanoribbon with a periodic array of holes

Avci, S.; Xiao, Z. L.; Hua, J.; Imre, A.; Divan, R.; Pearson, J.; Welp, U.; Kwok, W. K.; Crabtree, G. W.
July 2010
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p042511
Academic Journal
We report investigations on the dynamics of vortex matter with periodic pinning in crystalline Bi2Sr2CaCu2O8 nanoribbons containing an array of nanoscale holes. We found that the matching effect is enhanced near the melting field and persists to higher fields beyond the melting line. We attribute this enhancement to the existence of a soft-solid phase and a mixture of solid-liquid phases near the melting line, enabling the vortices to pin more effectively. We observed distinct regions in the voltage-current curves attributed to transitions of various dynamic phases which also account for the driving current dependent appearance of the matching effect.


Related Articles

  • Pattern formation arising from wave instability in a simple reaction-diffusion system. Zhabotinsky, Anatol M.; Dolnik, Milos; Epstein, Irving R. // Journal of Chemical Physics;12/15/1995, Vol. 103 Issue 23, p10306 

    Pattern formation is studied numerically in a three-variable reaction-diffusion model with onset of the oscillatory instability at a finite wavelength. Traveling and standing waves, asymmetric standing-traveling wave patterns, and target patterns are found. With increasing overcriticality or...

  • Novel organic monotectic alloy and its thermal, physicochemical, and microstructural studies. Sharma, K. P.; Rai, R. N. // Journal of Materials Science;Mar2011, Vol. 46 Issue 5, p1551 

    The phase diagram study of an organic analogue of a nonmetal-nonmetal system involving 4-bromochlorobenzene and resorcinol shows the formation of a eutectic and a monotectic. The phase equilibrium shows the large miscibility gap region with the consolute temperature 143.0 °C. Growth kinetics...

  • Imaging the vortex-lattice melting process in the presence of disorder. Soibel, Alex; Zeldov, Eli; Rappaport, Michael; Myasoedov, Yuri; Tamegai, Tsuyoshi; Ooi, Schuuichi; Konczykowski, Marcin; Geshkenbein, Vadim B. // Nature;7/20/2000, Vol. 406 Issue 6793, p282 

    Presents a study in which a differential magneto-optical technique is used to obtain direct experimental visualization of the melting process in a disordered superconductor. Complex behavior in nucleation, pattern formation, and solid-liquid interface coarsening and pinning which the images...

  • SURFACE SPECULARITY AS AN INDICATOR OF SHOCK-INDUCED SOLID-LIQUID PHASE TRANSITIONS IN TIN. Stevens, G. D.; Lutz, S. S.; Marshall, B. R.; Turley, W. D.; Veeser, L. R.; Hixson, R. S.; Jensen, B. J.; Rigg, P. A.; Wilke, M. D. // AIP Conference Proceedings;12/12/2007, Vol. 955 Issue 1, p201 

    When highly polished metal surfaces melt upon release after shock loading, they exhibit features that suggest significant surface changes accompany the phase transition. The reflection of light from such surfaces changes from specular (pre-shock) to diffuse upon melting. A familiar manifestation...

  • Melting and superheating in solids with volume shrinkage at melting: A molecular dynamics study of silicon. Zhang, Qi; Li, Qikai; Li, Mo // Journal of Chemical Physics;1/28/2013, Vol. 138 Issue 4, p044504 

    The thermodynamics of homogeneous melting in superheated crystalline solids with volume shrinkage at melting is investigated using extensive molecular dynamics simulation in conjunction with a classical nucleation theory. A liquid-solid co-existing model is established to overcome the difficult...

  • Transformation of the short-range order upon melting of Cu Hal nanocrystals in glasses. Valov, P. M.; Leĭman, V. I. // Physics of the Solid State;Jul2007, Vol. 49 Issue 7, p1357 

    The reduced density of states at the edge of interband transitions in CuCl and CuBr nanocrystals is described by a step at T → 0. As the temperature increases, the step is smeared toward the band gap and the long-wavelength absorption tail agrees with the Urbach rule. A change in the...

  • Atomistic study of the melting behavior of single crystalline wurtzite gallium nitride nanowires. Zhiguo Wang; Xiaotao Zu; Fei Gao; Weber, William J. // Journal of Materials Research;Mar2007, Vol. 22 Issue 3, p19 

    Molecular dynamic simulation was used to study the melting behavior of gallium nitride (GaN) nanowires with the Stillinger-Weber potential. Our results reveal that the melting of the nanowires starts from the surface and rapidly extends to the inner regions of nanowires as temperature increases....

  • Molecular dynamics studies of ultrafast laser-induced nonthermal melting. Wang, Y.; Xu, X. // Applied Physics A: Materials Science & Processing;Feb2013, Vol. 110 Issue 3, p617 

    Molecular Dynamics (MD) is employed to investigate nonthermal melting triggered by coherent phonon excitation in bismuth telluride, which has Peierls distortion in the lattice structure. Results showed that the structural distortion caused by coherent phonons appears as early as 80 fs, while it...

  • Oppositely rotating eigenmodes of spin-polarized current-driven vortex gyrotropic motions in elliptical nanodots. Ki-Suk Lee; Young-Sang Yu; Youn-Seok Choi; Dae-Eun Jeong; Sang-Koog Kim // Applied Physics Letters;5/12/2008, Vol. 92 Issue 19, p192514 

    The authors found that there exist two different rotational eigenmodes of oppositely rotating sense in spin-polarized current-driven vortex gyrotropic motions in soft magnetic elliptical nanodots. Simple mathematical expressions were analytically calculated by adopting vortex-core...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics