Nonmagnetic Phase Transition in La\(_3\)TiSb\(_5\) Observed in \(^{121}\)Sb Nuclear Quadrupole Resonance

We measured the electrical resistivity and the \(^{121}\)Sb nuclear quadrupole resonance (NQR) spectra of La\(_3\)TiSb\(_5\), which is a nonmagnetic reference system for a locally noncentrosymmetric antiferromagnet Ce\(_3\)TiSb\(_5\), in order to determine its physical properties. The resistivity ex...

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Bibliographic Details
Published inarXiv.org
Main Authors Manago, Masahiro, Motoyama, Gaku, Nishigori, Shijo, Fujiwara, Kenji, Harima, Hisatomo
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 01.08.2024
Subjects
Antiferromagnetism
Charge density waves
Electrical resistivity
Nuclear quadrupole resonance
Nuclear spin
Phase transitions
Physical properties
Quadrupoles
Reference systems
Spectra
Spin-lattice relaxation
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Summary:We measured the electrical resistivity and the \(^{121}\)Sb nuclear quadrupole resonance (NQR) spectra of La\(_3\)TiSb\(_5\), which is a nonmagnetic reference system for a locally noncentrosymmetric antiferromagnet Ce\(_3\)TiSb\(_5\), in order to determine its physical properties. The resistivity exhibited a hump anomaly at 120 K, suggesting a phase transition. The NQR spectra split below 110 K, whereas the nuclear spin-lattice relaxation exhibited no anomalies. These results can be explained by the incommensurate charge-density-wave (CDW) transition. This finding suggests the importance of quasi-one-dimensional characteristics and CDW instability in these systems.
ISSN:2331-8422
DOI:10.48550/arxiv.2408.00408