Effects of 3 MeV Proton Irradiation on Superconductivity and CDW in 2H-NbSe2 Single Crystals

被引：4

作者：

Li, Wenjie ^{[1
]}

Pyon, Sunseng ^{[1
]}

Yagi, Akiyoshi ^{[1
]}

Ren, Tong ^{[1
]}

Suyama, Masahiro ^{[1
]}

Wang, Jiachen ^{[1
]}

Matsumae, Takumi ^{[1
]}

Kobayashi, Yuto ^{[1
]}

Takahashi, Ayumu ^{[1
]}

Miyawaki, Daisuke ^{[1
]}

Tamegai, Tsuyoshi ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo, Tokyo 1138656, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2023年 / 92卷 / 06期

关键词：

CHARGE-DENSITY-WAVE; TRANSITION; STATE; NBSE2; COMPETITION; ORDER;

D O I：

10.7566/JPSJ.92.064701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Interplay between superconductivity and charge-density wave (CDW) in 2H-NbSe2 single crystals irradiated by 3 MeV protons is studied. Both Tc and TCDW are found to decrease monotonically with the increase in irradiation dose. This behavior is different from electron-irradiated NbSe2, where TCDW is suppressed monotonically with the increase in dose, while Tc shows an initial enhancement before it starts to decrease. We attempt to explain this difference based on the negative pressure effect which has been reported in our previous study on NbSe2 irradiated by heavy ions.

引用

页数：7

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