Normal and Superconducting Properties of La3Ni2O7

IF 3.5 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Chinese Physics Letters Pub Date : 2024-06-30 DOI:10.1088/0256-307x/41/7/077402

Meng Wang, 猛王, Hai-Hu Wen, 海虎闻, Tao Wu, 涛吴, Dao-Xin Yao, 道新姚, Tao Xiang and 涛向

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Abstract

This review provides a comprehensive overview of current research on the structural, electronic, and magnetic characteristics of the recently discovered high-temperature superconductor La3Ni2O7 under high pressures. We present the experimental results for synthesizing and characterizing this material, derived from measurements of transport, thermodynamics, and various spectroscopic techniques, and discuss their physical implications. We also explore theoretical models proposed to describe the electronic structures and superconducting pairing symmetry in La3Ni2O7, highlighting the intricate interplay between electronic correlations and magnetic interactions. Despite these advances, challenges remain in growing high-quality samples free of extrinsic phases and oxygen deficiencies and in developing reliable measurement tools for determining diamagnetism and other physical quantities under high pressures. Further investigations in these areas are essential to deepening our understanding of the physical properties of La3Ni2O7 and unlocking its superconducting pairing mechanism.

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La3Ni2O7 的正常和超导特性

本综述全面概述了目前对最近发现的高温超导体 La3Ni2O7 在高压下的结构、电子和磁性特征的研究。我们介绍了通过测量输运、热力学和各种光谱技术得出的合成和表征这种材料的实验结果，并讨论了它们的物理意义。我们还探讨了为描述 La3Ni2O7 中的电子结构和超导配对对称性而提出的理论模型，强调了电子关联和磁性相互作用之间错综复杂的相互作用。尽管取得了这些进展，但在培育无外在相和缺氧的高质量样品以及开发可靠的测量工具以确定高压下的二磁性和其他物理量方面仍然存在挑战。要加深我们对 La3Ni2O7 物理性质的理解并揭示其超导配对机制，就必须在这些领域开展进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chinese Physics Letters 物理-物理：综合

CiteScore

5.90

自引率

8.60%

发文量

13238

审稿时长

4 months

期刊介绍： Chinese Physics Letters provides rapid publication of short reports and important research in all fields of physics and is published by the Chinese Physical Society and hosted online by IOP Publishing.