日本語
 
Help Privacy Policy ポリシー/免責事項
  詳細検索ブラウズ

アイテム詳細

  Dichotomous dynamics of magnetic monopole fluids

Hsu, C.-C., Takahashi, H., Jerzembeck, F., Dasini, J., Carroll, C., Dusad, R., Ward, J., Dawson, C., Sharma, S., Luke, G. M., Blundell, S. J., Castelnovo, C., Hallén, J. N., Moessner, R., & Davis, J. C. S. (2024). Dichotomous dynamics of magnetic monopole fluids. PNAS, 121(21):, pp. 1 of 7-7 of 7. doi:10.1073/pnas.2320384121.

Item is

基本情報

非表示:
アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-000F-5AA2-5 版のパーマリンク: https://hdl.handle.net/21.11116/0000-000F-BBAB-E
資料種別: 学術論文

ファイル

表示: ファイル

関連URL

表示:

作成者

非表示:
 作成者:
Hsu, Chun-Chih1, 著者
Takahashi, Hiroto1, 著者
Jerzembeck, Fabian2, 著者           
Dasini, Jahnatta1, 著者
Carroll, Chaia1, 著者
Dusad, Ritika1, 著者
Ward, Jonathan1, 著者
Dawson, Catherine1, 著者
Sharma, Sudarshan1, 著者
Luke, Graeme M.1, 著者
Blundell, Stephen J.1, 著者
Castelnovo, Claudio1, 著者
Hallén, Jonathan N.1, 著者
Moessner, Roderich1, 著者
Davis, J. C. Séamus3, 著者           
所属:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3J. C. Séamus Davis, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_3266851              

内容説明

非表示:
キーワード: dysprosium titanate, frustrated magnetism, magnetic dynamics, spin ice, dysprosium, ice, article, controlled study, diffusion, female, liquid, magnetic field, magnetism, male, noise, phenomenology, relaxation time, sensor, squid, temperature
 要旨: A recent advance in the study of emergent magnetic monopoles was the discovery that monopole motion is restricted to dynamical fractal trajectories [J. N. Hallén et al., Science378, 1218 (2022)], thus explaining the characteristics of magnetic monopole noise spectra [R. Dusad et al., Nature571, 234 (2019); A. M. Samarakoon et al., Proc. Natl. Acad. Sci. U.S.A.119, e2117453119 (2022)]. Here, we apply this novel theory to explore the dynamics of field-driven monopole currents, finding them composed of two quite distinct transport processes: initially swift fractal rearrangements of local monopole configurations followed by conventional monopole diffusion. This theory also predicts a characteristic frequency dependence of the dissipative loss angle for AC field-driven currents. To explore these novel perspectives on monopole transport, we introduce simultaneous monopole current control and measurement techniques using SQUID-based monopole current sensors. For the canonical material Dy2Ti2O7, we measure [Formula: see text], the time dependence of magnetic flux threading the sample when a net monopole current [Formula: see text] is generated by applying an external magnetic field [Formula: see text] These experiments find a sharp dichotomy of monopole currents, separated by their distinct relaxation time constants before and after t ~[Formula: see text] from monopole current initiation. Application of sinusoidal magnetic fields [Formula: see text] generates oscillating monopole currents whose loss angle [Formula: see text] exhibits a characteristic transition at frequency [Formula: see text] over the same temperature range. Finally, the magnetic noise power is also dichotomic, diminishing sharply after t ~[Formula: see text]. This complex phenomenology represents an unprecedented form of dynamical heterogeneity generated by the interplay of fractionalization and local spin configurational symmetry.

資料詳細

非表示:
言語: eng - English
 日付: 2024-05-14
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): DOI: 10.1073/pnas.2320384121
 学位: -

関連イベント

表示:

訴訟

表示:

Project information

表示:

出版物 1

非表示:
出版物名: PNAS
  その他 : Proceedings of the National Academy of Sciences of the United States of America
  その他 : Proceedings of the National Academy of Sciences of the USA
  省略形 : Proc. Natl. Acad. Sci. U. S. A.
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Washington, D.C. : National Academy of Sciences
ページ: e2320384121 巻号: 121 (21) 通巻号: 2320384121 開始・終了ページ: 1 of 7 - 7 of 7 識別子(ISBN, ISSN, DOIなど): ISSN: 0027-8424
CoNE: https://pure.mpg.de/cone/journals/resource/954925427230