Search for near room-temperature superconductivity in B-doped Q-carbon

J. Narayan; R. Sachan; A. Bhaumik

doi:10.1080/21663831.2019.1569566

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Search for near room-temperature superconductivity in B-doped Q-carbon

Brief Overview | 更新时间：2026-08-19

- Search for near room-temperature superconductivity in B-doped Q-carbon
- Search for near room-temperature superconductivity in B-doped Q-carbon
- 材料研究快报（英文） 2019年7卷第4期页码：164-172
- 作者机构：
  
  1. Department of Materials Science and Engineering North Carolina State University Raleigh
  2. Department of Materials Science and Engineering North Carolina State University Raleigh NC USA
  3. Materials Science Division Army Research Office Research Triangle Park Piedmont
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2019.1569566
  中图分类号：
- 网络首发：2019-01-30，
  
  纸质出版：2019
- 稿件说明：
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J. Narayan, R. Sachan, A. Bhaumik. Search for near room-temperature superconductivity in B-doped Q-carbon[J]. 材料研究快报（英文）, 2019,7(4):164-172.

J. Narayan, R. Sachan, A. Bhaumik. Search for near room-temperature superconductivity in B-doped Q-carbon[J]. Materials Research Letters, 2019, 7(4): 164-172.
J. Narayan, R. Sachan, A. Bhaumik. Search for near room-temperature superconductivity in B-doped Q-carbon[J]. 材料研究快报（英文）, 2019,7(4):164-172. DOI： 10.1080/21663831.2019.1569566.

J. Narayan, R. Sachan, A. Bhaumik. Search for near room-temperature superconductivity in B-doped Q-carbon[J]. Materials Research Letters, 2019, 7(4): 164-172. DOI： 10.1080/21663831.2019.1569566.

摘要

Abstract

BSTRACTWe present 1D

2D and 3D structures of boron-doped Q-carbon with a higher superconducting transition temperature than the current value of 55 K in 25 at% B-doped amorphous Q-carbon. The higher transition temperature is predicted for 1D and 2D crystalline structures with increasing density of states near the Fermi level through dopant trapping in substitutional sites. We have synthesized 50at% B-doped Q-carbon where diamond tetrahedra are arranged randomly and packed with over 80% efficiency to generate an amorphous structure. Detailed EELS measurements show higher density of states near the Fermi level above 90 K and preliminary transport data show signature of

above 100 K.

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Keywords

references

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