Magnetic properties of frustrated spin-$\frac{1}{2}$ capped-kagome antiferromagnet (CsBr)Cu$_5$V$_2$O$_{10}$
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910692431364096 |
|---|---|
| author | Guchhait, S. Ambika, D. V. Mohanty, S. Furukawa, Y. Nath, R. |
| author_facet | Guchhait, S. Ambika, D. V. Mohanty, S. Furukawa, Y. Nath, R. |
| contents | The structural and magnetic properties of a spin-$\frac{1}{2}$ averievite (CsBr)Cu$_5$V$_2$O$_{10}$ are investigated by means of temperature-dependent x-ray diffraction, magnetization, heat capacity, and $^{51}$V nuclear magnetic resonance (NMR) measurements. The crystal structure (trigonal, $P\bar{3}$) features a frustrated capped-kagome lattice of the magnetic Cu$^{2+}$ ions. Magnetic susceptibility analysis indicates a large Curie-Weiss temperature of $θ_{\rm CW} \simeq-175$ K. Heat capacity signals the onset of a magnetic long-range-order (LRO) at $T_{\rm N}\simeq 21.5$ K at zero magnetic field due to the presence of significant inter-planer coupling in this system. The magnetic LRO below 27 K is further evident from the drastic change in the $^{51}$V NMR signal intensity and rapid enhancement in the $^{51}$V spin-lattice relaxation rate in a magnetic field of 6.3 T. The frustration index $f=|θ_{\rm CW}|/T_{\rm N} \simeq 8$ ascertains strong magnetic frustration in this compound. From the high-temperature value of the $^{51}$V NMR spin-lattice relaxation rate, the leading antiferromagnetic exchange interaction between the Cu$^{2+}$ ions is calculated to be $J/k_{\rm B}\simeq 136$ K. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_06072 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnetic properties of frustrated spin-$\frac{1}{2}$ capped-kagome antiferromagnet (CsBr)Cu$_5$V$_2$O$_{10}$ Guchhait, S. Ambika, D. V. Mohanty, S. Furukawa, Y. Nath, R. Materials Science The structural and magnetic properties of a spin-$\frac{1}{2}$ averievite (CsBr)Cu$_5$V$_2$O$_{10}$ are investigated by means of temperature-dependent x-ray diffraction, magnetization, heat capacity, and $^{51}$V nuclear magnetic resonance (NMR) measurements. The crystal structure (trigonal, $P\bar{3}$) features a frustrated capped-kagome lattice of the magnetic Cu$^{2+}$ ions. Magnetic susceptibility analysis indicates a large Curie-Weiss temperature of $θ_{\rm CW} \simeq-175$ K. Heat capacity signals the onset of a magnetic long-range-order (LRO) at $T_{\rm N}\simeq 21.5$ K at zero magnetic field due to the presence of significant inter-planer coupling in this system. The magnetic LRO below 27 K is further evident from the drastic change in the $^{51}$V NMR signal intensity and rapid enhancement in the $^{51}$V spin-lattice relaxation rate in a magnetic field of 6.3 T. The frustration index $f=|θ_{\rm CW}|/T_{\rm N} \simeq 8$ ascertains strong magnetic frustration in this compound. From the high-temperature value of the $^{51}$V NMR spin-lattice relaxation rate, the leading antiferromagnetic exchange interaction between the Cu$^{2+}$ ions is calculated to be $J/k_{\rm B}\simeq 136$ K. |
| title | Magnetic properties of frustrated spin-$\frac{1}{2}$ capped-kagome antiferromagnet (CsBr)Cu$_5$V$_2$O$_{10}$ |
| topic | Materials Science |
| url | https://arxiv.org/abs/2411.06072 |