Origin of spontaneous broken mirror symmetry of vortex lattices in Nb

Hiroki M. Adachi, Masaki Ishikawa, Tomoya Hirano, Masanori Ichioka, Kazushige Machida

研究成果査読

4 被引用数 (Scopus)

抄録

Combining the microscopic Eilenberger theory with the first-principles band calculation, we investigate the stable flux line lattice (FLL) for a field applied to the fourfold axis, i.e., H ∥ [001] in cubic Nb. The observed FLL transformation along H c2 is almost perfectly explained without using adjustable parameter, including the tilted square, scalene triangle with broken mirror symmetry, and isosceles triangle lattices upon increasing T. We construct a minimum Fermi surface model to understand such morphologies, particularly the stability of the scalene triangle lattice attributed to the lack of mirror symmetry about the Fermi velocity maximum direction in k-space.

本文言語English
論文番号113702
ジャーナルjournal of the physical society of japan
80
11
DOI
出版ステータスPublished - 11月 2011

ASJC Scopus subject areas

  • 物理学および天文学一般

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