Exchange bias up to room temperature in antiferromagnetic hexagonal Mn3Ge

Qian, J. F.; Nayak, A. K.; Kreiner, G.; Schnelle, W.; Felser, C.

doi:10.1088/0022-3727/47/30/305001

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Exchange bias up to room temperature in antiferromagnetic hexagonal Mn₃Ge

MPS-Authors

/persons/resource/persons129684

Qian, J. F.
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126778

Nayak, A. K.
Ajaya Nayak, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126709

Kreiner, G.
Guido Kreiner, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126838

Schnelle, W.
Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126601

Felser, C.
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Qian, J. F., Nayak, A. K., Kreiner, G., Schnelle, W., & Felser, C. (2014). Exchange bias up to room temperature in antiferromagnetic hexagonal Mn₃Ge. Journal of Physics D: Applied Physics, 47(30):, pp. 1-5. doi:10.1088/0022-3727/47/30/305001.

引用: https://hdl.handle.net/11858/00-001M-0000-0024-BF7D-D

要旨

Mn3.04Ge0.96 has a hexagonal crystal structure, which can be stabilized by high-temperature annealing, and shows antiferromagnetic order with a small ferromagnetic component of less than 0.1 mu(B) and a coercivity of 0.45 T. In the ordered phase, magnetization curves M(H) exhibit an exchange bias of 62 mT at T = 2K after field cooling, which is observable up to room temperature. The exchange anisotropy is suggested to originate from the exchange interaction between the host of triangular-antiferromagnetic Mn3Ge units and embedded ferrimagnetic-like clusters. Such clusters develop when excess Mn atoms occupy empty Ge sites in the original triangular-antiferromagnetic structure of Mn3Ge.