### Title, author, abstract

title
MAGNETIC STRUCTURE OF FLUX LINE LATTICE
authors
E. S. Otabe, M. Nozue, T. Matsushita
Department of Computer Science and Electronics, Kyushu Institute of Technology,
680--4 Kawazu, Iizuka, 820 JAPAN
abstract
Magnetic structure of a perfect triangular lattice at relatively low fields is numerically calculated by superposing isolated flux lines based on the Ginzburg-Landau theory. It is found that the magnetic flux density is fairly uniform spatially and the difference between the maximum and minimum values is 25~\% when the fluxoid spacing, $a_{\rm f}$, is equal to the penetration depth, $\lambda$, and the G-L parameter $\kappa=50$. The obtained magnetic structure is expressed in the Fourier series and the expansion summed terms are obtained as a function of $\kappa$ and $a_{\rm f}/\lambda$. It is seen that the number of coefficients needed for reconstruction becomes small with increasing magnetic flux density.
Original paper appears in
8th International Workshop on Critical Current
May 27-29, 1996
Kitakyushu, Japan