Report
Emergence of partially disordered antiferromagnetism and isothermal magnetization plateau due to geometrical frustration in a metallic compound, Er2RhSi3
| العنوان: | Emergence of partially disordered antiferromagnetism and isothermal magnetization plateau due to geometrical frustration in a metallic compound, Er2RhSi3 |
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| المؤلفون: | Iyer, Kartik K, Maiti, Kalobaran, Rayaprol, Sudhindra, Kumar, Ram, Mattepanavar, S., Dodamani, S., Sampathkumaran, E. V. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science |
| الوصف: | Partially disordered antiferro (PDA) magnetism (in which one of the three magnetic ions in a triangular network remains magnetically disordered), has been known commonly among geometrically frustrated insulating materials. The one-third plateau in isothermal magnetization (M) of such materials has been of great theoretical interest. Here, we report these properties in a AlB2-structure derived metallic material, Er2RhSi3 in which Er sublattice has triangular networks. The presence of a well-defined lamda anomaly in the temperature (T) dependence of heat capacity and its magnetic-field (H) dependence, and the loss of spin-disorder contribution in electrical resistivity (rho) confirm antiferromagnetic order below (TN=) 5 K. On the other hand, the separation of zero-field-cooled and field-cooled dc magnetic susceptibility (chi) curves, decay of isothermal remnant magnetization and the frequency dependence of real and imaginary components of ac chi suggest the onset of spin-glass freezing concomitant with the antiferromagnetic order. In addition, interestingly, we observe one-third plateau in M(H) below 20 kOe for T less than TN. The change in rho as a function of H at a given temperature well below TN is also revealing, with this compound exhibiting a plateau below 20 kOe, with complexities at higher fields. Therefore, this compound serves as a prototype for theoretical understanding of transport behavior across one-third plateau due to PDA magnetism in a metal without any interference from the 4f delocalization phenomena. Comment: Physical Review Materials (Letters), in press |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2309.08176 |
| رقم الانضمام: | edsarx.2309.08176 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |