Lattice deformations induced by an applied magnetic field in the frustrated antiferromagnet HgCr2O4

DOI Web Site Web Site 被引用文献8件 参考文献32件

書誌事項

タイトル別名
  • Lattice Deformations Induced by an Applied Magnetic Field in the Frustrated Antiferromagnet HgCr<SUB>2</SUB>O<SUB>4</SUB>

この論文をさがす

抄録

The way geometric frustration in the pyrochlore antiferromagnet HgCr2O4 is relieved by an applied magnetic field is studied by synchrotron X-ray diffraction. The material shows a structural change, from cubic to orthorhombic, at the magnetic transition temperature, TN\\simeq6 K, to relieve the geometrical frustration. Below TN, successive magnetic phase transitions occur in an applied field, from the antiferromagnetic to the half-magnetization plateau phase followed by a transition with a kink in the magnetization. We find that the lattice constant shows discontinuous expansions that coincide with magnetization changes, indicating progressive relief of geometric frustration. We calculate the lattice deformation invoking a magneto-elastic coupling and obtain good agreement between the calculation and our observation.

収録刊行物

被引用文献 (8)*注記

もっと見る

参考文献 (32)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ