Work

Restoration of the Korringa Relation in Disordered Liquid Systems via Transverse Relaxation (T2)

Year: 2026

Type: article

Abstract: This study resolves the apparent breakdown of the Korringa relation in disordered liquid metals by investigating Ga-based alloys (EGaIn and Galinstan). By integrating temperature-dependent Knight shifts (K) with longitudinal (T1) and transverse (T2) relaxation measurements, we demonstrate that deviations from classical behavior arise from neglecting transverse spin dephasing induced by structural and electronic disorder. While solid-state alloys follow the conventional Korringa law, the liquid phase exhibits significant discrepancies between T1 and T2 due to enhanced electron scattering and fluctuating hyperfine fields. By explicitly incorporating T2 into a modified framework, the proportionality between the Knight shift and nuclear relaxation is quantitatively restored. This establishes transverse relaxation as a critical parameter for describing nuclear spin dynamics in complex liquid metals, reinforcing NMR as a powerful local probe for optimizing next-generation liquid metal technologies.

Source: Materials

DOI: 10.3390/ma19091826

Authors: Yuan Zeng, Lanlan Yang, Jiejun Yao, Wei Tang, Xiaolong Liu

Institution: Sun Yat-sen University

Language: English

Topic: Thermodynamic and Structural Properties of Metals and Alloys

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funder: National Natural Science Foundation of China