Physical trend for critical temperature in Bi2Sr2CaCu2O8 high-temperature superconductors

doi:10.15541/jim20260128

Journal of Inorganic Materials

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Physical trend for critical temperature in Bi₂Sr₂CaCu₂O₈ high-temperature superconductors

SHI Xun^1,2

1. State Key Laboratory of High Performance Ceramics, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;
2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2026-03-23 Revised:2026-03-25
Contact: SHI Xun, professor. E-mail: xshi@mail.sic.ac.cn
About author:SHI Xun (1976-), male, PhD. E-mail: xshi@mail.sic.ac.cn
Supported by:
National Natural Science Foundation of China (52588301)

Abstract

Abstract: Superconductivity is extremely interesting and important in condensed matter physics and material science. Currently, there are many types of materials to show superconductivity with a critical temperature (T_C) locating in a large range under normal pressure. Compared with the successful Bardeen-Cooper-Schrieffer (BCS) theory for low T_C metals, there are no effective model and theory for high-temperature superconductors. In this work, taking Y-doped Bi₂Sr₂CaCu₂O₈ as an example, we show that a power law relationship is obtained for T_C and hole concentrations. A large hole concentration is beneficial to realize a high T_C. This work provides a useful guidance for the future discovery of high T_C superconductors.

Key words: superconductivity, critical temperature, physical trend, Bi₂Sr₂CaCu₂O₈

CLC Number:

TM26+2

SHI Xun. Physical trend for critical temperature in Bi₂Sr₂CaCu₂O₈ high-temperature superconductors[J]. Journal of Inorganic Materials, DOI: 10.15541/jim20260128.

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Physical trend for critical temperature in Bi₂Sr₂CaCu₂O₈ high-temperature superconductors

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