Epitaxial Growth by D.c. Magnetron Sputtering of Carbyne (Chaoite) Microcrystals on CVD-Deposited Polycrystalline Diamond - Polyynes: Synthesis, Properties, and Applications - page 35

3 Epitaxial Growth by D.c.

Magnetron Sputtering of
Carbyne (Chaoite)
Microcrystals on
CVD-Deposited
Polycrystalline Diamond

Robert B. Heimann, Igor Burlacov,
Jacob I. Kleiman and Sergey Horodetsky

CONTENTS

3.1 Introduction .................................................. 37
3.2 Proposed Epitaxy of Carbyne on Diamond . . .................. 39
3.3 Equipment . ................................................... 42
3.3.1 Chemical Vapor Deposition (CVD) Reactor ............ 42
3.3.2 D.c. Magnetron ........................................ 43
3.4 Deposition and Characterization of Carbyne. . .................. 45
3.5 Conclusions . ................................................... 49
Acknowledgments .................................................. 50
References .......................................................... 50

3.1 INTRODUCTION

One of the most controversial research topics in modern carbon science
concerns the thermodynamically stable existence of an sp-hybridized linear
carbon chain allotrope called carbyne [1]. Acceptance by the scientific
community of this alleged carbon allotrope as the ''third form of carbon''
would be much easier if single crystals of carbyne existed which were
large enough to permit determination of their crystal structure by x-ray

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