Static and Dynamic Electronic Properties and the Possible Magnetic Structure of the $4f^3$-$Γ_6$ System NdCo2Zn$_{18}$Ga$_2$ Investigated Using $^{59}$Co Nuclear Quadrupole Resonance
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917420535382016 |
|---|---|
| author | Kubo, Tetsuro Sasaki, Atsushi Murooka, Keita Kotegawa, Hisashi Yamamoto, Rikako Onimaru, Takahiro Tou, Hideki |
| author_facet | Kubo, Tetsuro Sasaki, Atsushi Murooka, Keita Kotegawa, Hisashi Yamamoto, Rikako Onimaru, Takahiro Tou, Hideki |
| contents | We report $^{59}$Co nuclear quadrupole resonance (NQR) measurements on the Nd-based compound NdCo$_2$Zn$_{18}$Ga$_2$, which undergoes an antiferromagnetic transition at $T_{\rm N} = 1.5$ K. Although the NQR spectra show no detectable change across $T_{\rm N}$, the nuclear spin-lattice relaxation rate, $1/T_1$, exhibits a clear anomaly at $T_{\rm N}$. An analysis based on the alignment of the Nd moments demonstrates that the internal magnetic fields generated by these moments cancel each other at the Co sites. If the nearest-neighbor Nd moments align antiferromagnetically, this finding suggests that Ga substitution removes magnetic frustration, thereby increasing $T_{\rm N}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_17416 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Static and Dynamic Electronic Properties and the Possible Magnetic Structure of the $4f^3$-$Γ_6$ System NdCo2Zn$_{18}$Ga$_2$ Investigated Using $^{59}$Co Nuclear Quadrupole Resonance Kubo, Tetsuro Sasaki, Atsushi Murooka, Keita Kotegawa, Hisashi Yamamoto, Rikako Onimaru, Takahiro Tou, Hideki Strongly Correlated Electrons We report $^{59}$Co nuclear quadrupole resonance (NQR) measurements on the Nd-based compound NdCo$_2$Zn$_{18}$Ga$_2$, which undergoes an antiferromagnetic transition at $T_{\rm N} = 1.5$ K. Although the NQR spectra show no detectable change across $T_{\rm N}$, the nuclear spin-lattice relaxation rate, $1/T_1$, exhibits a clear anomaly at $T_{\rm N}$. An analysis based on the alignment of the Nd moments demonstrates that the internal magnetic fields generated by these moments cancel each other at the Co sites. If the nearest-neighbor Nd moments align antiferromagnetically, this finding suggests that Ga substitution removes magnetic frustration, thereby increasing $T_{\rm N}$. |
| title | Static and Dynamic Electronic Properties and the Possible Magnetic Structure of the $4f^3$-$Γ_6$ System NdCo2Zn$_{18}$Ga$_2$ Investigated Using $^{59}$Co Nuclear Quadrupole Resonance |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2604.17416 |