تقرير
Interplay of magnetic order and ferroelasticity in the spin-orbit coupled antiferromagnet K$_2$ReCl$_6$
| العنوان: | Interplay of magnetic order and ferroelasticity in the spin-orbit coupled antiferromagnet K$_2$ReCl$_6$ |
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| المؤلفون: | Bertin, Alexandre, Dey, Tusharkanti, Brüning, Daniel, Gorkov, Dmitry, Jenni, Kevin, Krause, Astin, Becker, Petra, Bohaty, Ladislav, Khomskii, Daniel, Pomjakushin, Vladimir, Keller, Lukas, Braden, Markus, Lorenz, Thomas |
| المصدر: | Phys. Rev. B 109, 094409 (2024) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science |
| الوصف: | The magnetic and structural phase transitions occurring in K$_2$ReCl$_6$ were studied by macroscopic and microscopic techniques. Structural phase transitions associated with rotations of the ReCl$_6$ octahedra lower the symmetry from cubic to monoclinic, form ferroelastic domains, and are visible in susceptibility, specific heat and thermal expansion measurements. In the antiferromagnetically ordered state slightly below $T_{\rm N}$=12\,K these domains can be rearranged by a magnetic field inducing a relative elongation of the polydomain crystal parallel to the field of 0.6\%. At zero field the magnetic structure in K$_2$ReCl$_6$ does not exhibit a weak ferromagnetic component, but at large magnetic field a distinct magnetic structure with a finite weak ferromagnetic component is stabilized. High magnetic fields rearrange the domains in the crystal to align the weak ferromagnetic moment parallel to the field. The altered domain structure with the crystal elongation is abruptly suppressed at lower temperature but persists upon heating to well above $T_{\rm N}$. However, heating above the lowest structural phase transition and successive cooling restore the initial shape. Comment: 14 pages, 10 figures; In this revised version of our manuscript, neutron powder diffraction data have been included and the discussion of the multidomain structure has been extended |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.109.094409 |
| URL الوصول: | http://arxiv.org/abs/2207.11101 |
| رقم الأكسشن: | edsarx.2207.11101 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.109.094409 |
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