NIOBIUM AND NIOBIUM-TITANIUM NITRIDES FOR RF APPLICATIONS

被引:13
作者
Fabbricatore, P. [1 ]
Gemme, G. [1 ]
Musenich, R. [1 ]
Parodi, R. [1 ]
Viviani, M. [1 ]
Zhang, B. [1 ]
Buscaglia, V. [2 ]
机构
[1] Ist Nazl Fis Nucl, Via Dodecaneso 33, I-16146 Genoa, Italy
[2] ICFAM CNR, I-16149 Genoa, Italy
关键词
Electronic equipment - Magnetic variables measurement - Niobium - Nitrides - Superconductivity - Titanium;
D O I
10.1109/77.233593
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The work deals with the study of the application of niobium and niobium-titanium nitrides in RF devices. Nitride samples, prepared by diffusion of nitrogen in bulk niobium and alloy, have been characterized by X-ray diffraction, SEM and AC magnetic measurements. Several phases of niobium nitride have been observed: the phase with higher nitrogen content, at the sample surface, has critical temperature about 15 K but inclusions of both lower Tc and not superconducting phases enhance the RF surface resistance. The surface of niobium-titanium nitride is composed by a phase having critical temperature up to 17 K and unwanted phases were not observed.
引用
收藏
页码:1761 / 1764
页数:4
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