Phase diagram of the chiral magnet<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cr</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>NbS</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>in a magnetic field
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- タイトル別名
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- Phase diagram of the chiral magnet Cr1/3NbS2 in a magnetic field
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We construct the phase diagram of the chiral magnet Cr1/3NbS2 in a dc magnetic field (Hdc) using ac magnetic susceptibility measurements. At Hdc = 0, the ac response at the transition from the helical magnetic (HM) state to the paramagnetic (PM) state consists of a giant third-order harmonic component (M3ω) and a first-order harmonic component (M1ω). By applying Hdc perpendicular to the c axis, the HM state is transformed to the chiral soliton lattice (CSL) state, which is a superlattice tuned by Hdc. The above giant M3ω is markedly suppressed at small Hdc. The CSL state is found to consist of CSL-1, with dominant helical texture and a poor ferromagnetic array, and CSL-2, with a large ferromagnetic array. The transition between CSL-1 and the PM state causes a linear magnetic response, the dominant component of which is the in-phase M1ω. With increasing temperature, CSL-2 is transformed into the forced ferromagnetic (FFM) state, and ultimately the PM state is reached. The transition between CSL-2 and the FFM state consists of a large M3ω and large out-of-phase M1ω as well as in-phase M1ω. The transition between the FMM and PM states also yields a linear magnetic response, like the CSL-1–PM-state transition. Five typical magnetic dynamics in the transitions among the HMstate, CSL-1, CSL-2, FFM state, and PM state were identified according to the equivalent dynamical motion equation of a nonlinear spring model.
収録刊行物
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- Physical Review B
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Physical Review B 93 (10), 104402-1-104402-8, 2016-03-01
American Physical Society
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詳細情報 詳細情報について
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- CRID
- 1050282813915413504
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- NII論文ID
- 120006596476
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- NII書誌ID
- AA11187113
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- ISSN
- 24699969
- 24699950
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- HANDLE
- 10228/00007103
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- 本文言語コード
- en
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- 資料種別
- journal article
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