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Condensed Matter > Superconductivity

arXiv:2504.11065v1 (cond-mat)
[Submitted on 15 Apr 2025 ]

Title: Electronic transport properties of titanium nitride grown by molecular beam epitaxy

Title: 分子束外延生长的氮化钛的电子输运性质

Authors:Kosuke Takiguchi, Yoshiharu Krockenberger, Tom Ichibha, Kenta Hongo, Ryo Maezono, Yoshitaka Taniyasu, Hideki Yamamoto
Abstract: This study investigates the molecular beam epitaxial (MBE) growth of titanium nitride (TiN) thin films, achieving a high residual resistivity ratio (RRR) of 15.8. We observed a strong correlation between growth temperature and crystalline quality, as reflected in both RRR values and lattice parameter variations. Characterization of superconductivity yielded a Ginzburg-Landau coherence length of 60.4 $\pm$ 0.6 nm, significantly higher than typical sputtered films, suggesting improved superconducting coherence. First-principles calculations, in conjunction with experimental data, provided detailed insights into the electronic structure and transport properties of the TiN films. Temperature-dependent Hall coefficient measurements further revealed the influence of anisotropic scattering mechanisms. These findings establish a promising route for the development of nitride-based superconducting materials for advanced quantum computing technologies.
Subjects: Superconductivity (cond-mat.supr-con) ; Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:2504.11065 [cond-mat.supr-con]
  (or arXiv:2504.11065v1 [cond-mat.supr-con] for this version)
  https://doi.org/10.48550/arXiv.2504.11065

Submission history

From: Kosuke Takiguchi [view email]
[v1] Tue, 15 Apr 2025 10:57:14 UTC (4,110 KB)
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