Absence of superconductivity in boron-implanted diamond

被引：12

作者：

Heera, V. ^{[1
]}

Hoehne, R. ^{[2
]}

Ignatchik, O. ^{[3
]}

Reuther, H. ^{[1
]}

Esquinazi, P. ^{[2
]}

机构：

[1] Rossendorf Inc, Forschungszentrum Dresden, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany

[2] Univ Leipzig, Inst Expt Phys 2, Div Superconductiv & Magnetism, D-04103 Leipzig, Germany

[3] Rossendorf Inc, Forschungszentrum Dresden, Dresden High Magnet Field Lab, D-01314 Dresden, Germany

来源：

关键词：

diamond; boron implantation; superconductivity;

D O I：

10.1016/j.diamond.2008.01.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently, superconductivity has been found in heavily boron-doped diamond prepared by high temperature/high pressure synthesis or chemical vapour deposition. An alternative doping method of technological relevance is ion implantation. It is an open question whether superconductivity can also be obtained in boron-implanted diamond. Here we report on the transport and magnetic properties of high dose (2.3 x 10(16)- 1.7 x 10(17) cm(-2)) boron-implanted natural IIa diamond samples doped at elevated temperature of 900 degrees C and subsequently annealed at 1500 degrees C and 1700 degrees C. For comparison implantation at room temperature was also carried out. The samples were further characterized by Raman and infrared spectroscopy. No superconductivity could be detected in the samples at temperatures down to 40 mK. We discuss the possible origin for the absence of superconductivity. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：383 / 389

页数：7

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