Magnetic phase transitions, metastable states, and magnetic hysteresis in the antiferromagnetic compounds Fe_(0.5)TiS_(2-y)Se_y

Baranov N. V; Selezneva N. V; Sherokalova E. M.; Baglaeva Y. A.; Ovchinnikov A. S.; Tereshchenko A. A.; Gorbunov D. I; Volegov A. S.; Sherstobitov A. A.

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Magnetic phase transitions, metastable states, and magnetic hysteresis in the antiferromagnetic compounds Fe_(0.5)TiS_(2-y)Se_y

机译：磁相转变，稳定状态和反铁磁化合物FE_（0.5）TIS_（2-Y）SE_Y中的磁滞后

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The phase transitions and magnetization processes in the antiferromagnetic compounds Fe0.5TiS2-ySey [FeTi2(S,Se)(4)] with an ordered layered crystal structure of the Cr3S4 type have been studied by using x-ray diffraction, measurements of the specific heat, electrical resistivity, magnetoresistance, and the magnetization in steady and pulsed magnetic fields together with calculations within the Ising model accounting the magnetoelastic interactions. The change from the spin-flip to spin-flop type phase transition and a monotonic growth of the critical transition field from similar to 50 kOe at y = 0 up to 470 kOe at y = 2 has been observed with the Se for S substitution in antiferromagnetic (AFM) compounds Fe0.5TiS2-ySey. In the selenium-poor compounds (y 0.5), the field-induced AFM-FM phase transition at low temperatures is accompanied by ultrasharp changes in the magnetization and magnetoresistance and by huge magnetic hysteresis. The presence of remnant magnetoresistance in these compounds after the application of a magnetic field indicates the formation of a metastable field-induced FM state. Despite an AFM ground state, the Fe0.5TiS2-ySey compounds with y 0.5 after application of a magnetic field behave at low temperatures as high-anisotropic Ising-type ferromagnets with the coercive field H-c up to similar to 60 kOe. It has been shown, that magnetoelastic interactions may be responsible for the formation of the metastable field-induced high-coercive FM state in the Ising-type antiferromagnets.

机译：通过使用X射线衍射，通过使用X射线衍射，测量特定的测量热，电阻率，磁阻和稳态和脉冲磁场的磁化以及衡量磁场相互作用的计算。通过SE的SE替换，观察到从旋转翻转到旋转流型相转变和临界过渡场的临界过渡场的单调生长从y = 0的y = 0±470只koe。反铁磁（AFM）化合物Fe0.5TIS2-YSEY。在硒化合物（Y <0.5）中，低温下的现场诱导的AFM-FM相转变伴随着磁化和磁阻的超低标的变化以及巨大的磁滞后。在施加磁场后，在这些化合物中存在残余磁阻表明形成亚稳态诱导的FM状态。尽管AFM地位，但在施加磁场之后的Fe0.5TIS2-YSEY化合物在低温下以高各向同性的型铁磁体的低温，具有矫顽磁场H-C至60 koe。已经示出了，磁性相互作用可能负责在ising型反铁渣中形成亚稳场诱导的高矫顽力FM状态。

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《Physical review》 |2019年第2期|024430.1-024430.14|共14页
作者
Baranov N. V; Selezneva N. V; Sherokalova E. M.; Baglaeva Y. A.; Ovchinnikov A. S.; Tereshchenko A. A.; Gorbunov D. I; Volegov A. S.; Sherstobitov A. A.;
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Russian Acad Sci MN Mikheev Inst Met Phys Ekaterinburg 620108 Russia|Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Russian Acad Sci MN Mikheev Inst Met Phys Ekaterinburg 620108 Russia|Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Helmholtz Zentrum Dresden Rossendorf Hochfeld Magnetlab Dresden HLD EMFL D-01328 Dresden Germany;

Russian Acad Sci MN Mikheev Inst Met Phys Ekaterinburg 620108 Russia|Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

Russian Acad Sci MN Mikheev Inst Met Phys Ekaterinburg 620108 Russia|Ural Fed Univ Inst Nat Sci & Math Ekaterinburg 620002 Russia;

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1. Magnetic phase transitions, metastable states, and magnetic hysteresis in the antiferromagnetic compounds Fe_(0.5)TiS_(2-y)Se_y [J] . Baranov N. V, Selezneva N. V, Sherokalova E. M., Physical review . 2019,第2期

机译：反铁磁性化合物Fe_（0.5）TiS_（2-y）Se_y中的磁性相变，亚稳态和磁滞
2. Magnetic phase transitions, metastable states, and magnetic hysteresis in the antiferromagnetic compounds Fe0.5TiS2-ySey [J] . Baranov N. V, Selezneva N. V, Sherokalova E. M., Physical review, B . 2019,第2期

机译：反铁磁化合物Fe0.5TIS2-YSEY中的磁相转变，亚稳态和磁滞
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Magnetic phase transitions, metastable states, and magnetic hysteresis in the antiferromagnetic compounds Fe_(0.5)TiS_(2-y)Se_y

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