Influence of the type of carrier on ferromagnetism in a Si semiconductor implanted with Cu ions

Literature Information

Publication Date 2020-03-09
DOI 10.1039/C9CP05608D
Impact Factor 3.676
Authors

Li Wang, Denglu Hou, Chunfang Wu, Yuanping Shi, Shaohui Shi, Weikun Gao, Shunzhen Feng, Yingdi Liu, Li Li, Denghui Ji


View Original

Abstract

Silicon semiconductor samples implanted with Cu ions and samples co-implanted with Cu- and N-ions were prepared by MEVVA and the Kaufman technique. None of the samples showed evidence of secondary phases. The initially n-type Si matrix, when implanted with Cu ions, changed to a p-type semiconductor, and the Cu ions existed as local Cu2+ cations in the p-type environment. As a result, none of the Cu-implanted samples were ferromagnetic at room temperature. The co-implanted samples, on the other hand, showed room-temperature ferromagnetism because the introduction of N ions made the carrier type change from p-type to n-type which is favorable for the appearance of Cu2+. First principles calculations were applied to understand the experimental phenomena. The formation energy was reduced by implanting N ions, and was decreased effectively with the increase in ratio of N to Cu ions. The density of states and spin density of states indicated that the hybridization of s, p and d electrons induced ferromagnetism at 0 K. Particularly, we proposed possible exchange interactions between the Cu2+–N−(N4+)–Cu2+ ions to explain the ferromagnetism mechanism.

Related Literature

Pronounced exciton and coherent phonon dynamics in BiI3

Mirko Scholz, Kawon Oum, Thomas Lenzer

2017-12-20 Paper

DOI: 10.1039/C7CP07729G

Application of far-infrared spectroscopy to the structural identification of protein materials

Yanchen Han, Shengjie Ling, Zeming Qi, Zhengzhong Shao, Xin Chen

2018-04-04 Paper

DOI: 10.1039/C8CP00802G

Effects of crystal structure and composition on the photocatalytic performance of Ta–O–N functional materials

Qing-Lu Liu, Zong-Yan Zhao, Jian-Hong Yi

2018-03-27 Paper

DOI: 10.1039/C8CP00432C

Vibrational spectroscopy of hydrogens in diamond: a quantum mechanical treatment

Francesco Silvio Gentile, Simone Salustro, Anna Maria Ferrari, Philippe D'Arco, Roberto Dovesi

2018-04-04 Paper

DOI: 10.1039/C8CP00596F

Excimer formation and evolution of excited state properties in discrete dimeric stacking of an anthracene derivative: a computational investigation

Yu Gao, Haichao Liu, Shitong Zhang, Qiang Gu, Yue Shen, Yunpeng Ge, Bing Yang

2018-04-06 Paper

DOI: 10.1039/C8CP00834E

Modelling of adsorption and intercalation of hydrogen on/into tungsten disulphide multilayers and multiwall nanotubes

José I. Martínez, Alex Laikhtman, Hoi Ri Moon, Alla Zak, Julio A. Alonso

2018-04-13 Paper

DOI: 10.1039/C8CP01437J

Structural signature and transition dynamics of Sb2Te3 melt upon fast cooling

Y. R. Guo, F. Dong, C. Qiao, J. J. Wang, Ming Xu, Y. X. Zheng, R. J. Zhang, L. Y. Chen, C. Z. Wang, K. M. Ho

2018-03-27 Paper

DOI: 10.1039/C8CP00142A

You might also like

155412-88-71-(3-Aminophenyl)-3-...
Compound Q&A

How should waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 19132-12-8) be handled?

Waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 191...

19132-12-81-(D-Ribofuranosyl)-...
Compound Q&A

What regulatory guidelines apply to 2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 2007919-81-3)?

2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 20079...

2007919-81-32-Methyl-2-propanyl ...
Compound Q&A

What is N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0)?

N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0) is a chemical compound with...

245056-66-0N-(4-Chloro-2-pyridi...
Compound Q&A

What is 5-Chloro-2-hydroxybenzoic acid (CAS: 321-14-2)?

5-Chloro-2-hydroxybenzoic acid, also known as 5-chlorosalicylic acid, is an arom...

321-14-25-Chloro-2-hydroxybe...
Compound Q&A

What precautions should be taken when handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6)?

When handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6), it is important to u...

1717-00-61,1-Dichloro-1-fluor...
Compound Q&A

What are the physical and chemical properties of Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid (CAS: 281655-32-1)?

Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid is a white crystalline solid ...

281655-32-1Fmoc-(2S,3R)-3-pheny...
Compound Q&A

What are the main uses of 4-Amino-5-bromo-2-pyridinecarboxylic acid (CAS: 1363381-01-4)?

4-Amino-5-bromo-2-pyridinecarboxylic acid is primarily used as a precursor in th...

1363381-01-44-Amino-5-bromo-2-py...
1007881-98-2(S)-tert-butyl 2-((2...
Compound Q&A

What precautions should be taken when handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS: 688363-73-7)?

When handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one, use prop...

688363-73-78-bromo-2,2-dimethyl...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.