Magnetic Blue Phase in the Chiral Itinerant Magnet MnSi

被引：54

作者：

Hamann, A. ^{[1
,3
]}

Lamago, D. ^{[1
,2
]}

Wolf, Th. ^{[1
]}

v Loehneysen, H. ^{[1
,3
]}

Reznik, D. ^{[1
,4
]}

机构：

[1] KIT, Inst Solid State Phys, D-76131 Karlsruhe, Germany

[2] CEA Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

[3] KIT, Inst Phys, D-76131 Karlsruhe, Germany

[4] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 03期

关键词：

PARAMAGNETIC SPIN FLUCTUATIONS; FERROMAGNET MNSI; ORDER; FIELD; SANS;

D O I：

10.1103/PhysRevLett.107.037207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Chiral nematic liquid crystals sometimes form blue phases characterized by spirals twisting in different directions. By combining model calculations with neutron-scattering experiments, we show that the magnetic analogue of blue phases does form in the chiral itinerant magnet MnSi in a large part of the phase diagram. The properties of this blue phase explain a number of previously reported puzzling features of MnSi such as partial magnetic order and a two-component specific-heat and thermal-expansion anomaly at the magnetic transition.

引用

页数：4

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