We report on the observation of a negative magnetoresistance (NMR) regime in boron-doped nanocrystalline diamond films at low temperatures. A comparative analysis of our experimental results and those reported for systems composed of superconducting granules embedded in an insulating matrix (also referred as granular films) suggest the presence of superconducting regions inside the insulating films as causing the NMR. By considering the latter scenario, the experimental observations are explained by modeling the systems as consisting of a distribution of superconducting granules whose global properties are tuned by the intergrain distance.
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Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R ChinaChinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Wang, YG
Li, HD
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机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Li, HD
Xiong, YY
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机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Xiong, YY
Zhang, SL
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机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Zhang, SL
Lin, ZD
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机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Lin, ZD
Feng, K
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机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
机构:
Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R ChinaChinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Wang, YG
Li, HD
论文数: 0引用数: 0
h-index: 0
机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Li, HD
Xiong, YY
论文数: 0引用数: 0
h-index: 0
机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Xiong, YY
Zhang, SL
论文数: 0引用数: 0
h-index: 0
机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Zhang, SL
Lin, ZD
论文数: 0引用数: 0
h-index: 0
机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China
Lin, ZD
Feng, K
论文数: 0引用数: 0
h-index: 0
机构:Chinese Acad Sci, State Key Lab Surface Phys, Beijing 100080, Peoples R China