Periodic Coexistence of Superconductivity with Magnetic Order
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概要
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A new type of solution is found of the one-dimensional Ginzburg-Landau equation for superconducting pairing gap Δ (x) coupled with magnetization M(x). It describes a periodic coexistence of superconductivity and magnetic order realized in an open system, which is stabilized by external electric current. Within a spatial period of this phase, d〜 (8π^2c/a_0)^<1/2>(T_M -T)^<-1/2>, there appears a pair of magnetic domain walls at x=d/4 and 3d/4, where Δ (x) reaches its maxima. A novel feature is that such an order is induced and controlled by the electric current supplied from the external device, j, defining another order parameter related to the phase factor of the gap, ζ=mj/&plank;e〜(4α^3_0/27β^2γ)^<1/2>(T_c-T)^<3/2>
- 1995-10-15
著者
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Tanabe Kosai
Department Of Physics Faculty Of Science Saitama University
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Tanabe Kosai
Department Of Physics College Of Liberal Arts Saitama University
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Seki Seiichi
Department Of Physics Faculty Of Science Saitama University
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