dorsal/arxiv
View SchemaVortex Plastic Flow, $B(x,y,H(t)), M(H(t)), J_c(B(t))$, Deep in the Bose Glass and Mott-Insulator Regimes
| Authors | C. Reichhardt, C. J. Olson, J. Groth, Stuart Field, Franco Nori |
|---|---|
| Categories | |
| ArXiv ID | supr-con/9602001 |
| URL | https://arxiv.org/abs/supr-con/9602001 |
| DOI | 10.1103/PhysRevB.53.R8898 |
| Journal | Phys. Rev. B 53 (1996) R8898-R8901 |
Abstract
We present simulations of flux-gradient-driven superconducting vortices interacting with strong columnar pinning defects as an external field $H(t)$ is quasi-statically swept from zero through a matching field $B_{\phi}$. We analyze several measurable quantities, including the local flux density $ B(x,y,H(t))$, magnetization $M(H(t))$, critical current $J_{c}(B(t))$, and the individual vortex flow paths. We find a significant change in the behavior of these quantities as the local flux density crosses $B_{\phi}$, and quantify it for many microscopic pinning parameters. Further, we find that for a given pin density $J_c(B)$ can be enhanced by maximizing the distance between the pins for $ B < B_{\phi} $.
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"abstract": "We present simulations of flux-gradient-driven superconducting vortices\ninteracting with strong columnar pinning defects as an external field $H(t)$ is\nquasi-statically swept from zero through a matching field $B_{\\phi}$. We\nanalyze several measurable quantities, including the local flux density $\nB(x,y,H(t))$, magnetization $M(H(t))$, critical current $J_{c}(B(t))$, and the\nindividual vortex flow paths. We find a significant change in the behavior of\nthese quantities as the local flux density crosses $B_{\\phi}$, and quantify it\nfor many microscopic pinning parameters. Further, we find that for a given pin\ndensity $J_c(B)$ can be enhanced by maximizing the distance between the pins\nfor $ B \u003c B_{\\phi} $.",
"arxiv_id": "supr-con/9602001",
"authors": [
"C. Reichhardt",
"C. J. Olson",
"J. Groth",
"Stuart Field",
"Franco Nori"
],
"categories": [
"supr-con",
"cond-mat.mtrl-sci",
"cond-mat.supr-con"
],
"doi": "10.1103/PhysRevB.53.R8898",
"journal_ref": "Phys. Rev. B 53 (1996) R8898-R8901",
"title": "Vortex Plastic Flow, $B(x,y,H(t)), M(H(t)), J_c(B(t))$, Deep in the Bose Glass and Mott-Insulator Regimes",
"url": "https://arxiv.org/abs/supr-con/9602001"
},
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