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Title: Surface Characterization of NbTiN Films for Accelerator Applications

Abstract

The development of next-generation SRF cavities requires the deployment of innovative material solutions with RF performance beyond bulk Nb. Theoretical interest has stimulated efforts to grow and characterize thin multi-layer superconductor/insulator/superconductor (SIS) structures for their potential capability of supporting otherwise inaccessible surface magnetic fields in SRF cavities *. The ternary B1-compound NbTiN is among the candidate superconducting materials for SIS structures. Single crystal NbTiN films with thicknesses below 15 nm are also of interest for the development of high resolution, high sensitivity (SNSPD) detectors for particle physics application. Using DC reactive magnetron sputtering, NbTiN can be deposited with nominal superconducting parameters. This contribution presents the on-going material surface and superconducting properties characterization in order to optimize the NbTiN films for each application.

Authors:
 [1];  [1];  [2];  [2];  [2]
  1. College of William and Mary, Williamsburg, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1471378
Report Number(s):
JLAB-ACC-18-2718; DOE/OR/23177-4439
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Conference
Resource Relation:
Conference: IPAC 2018, 29 Apr - 04 May 2018. Vancouver, BC Canada
Country of Publication:
United States
Language:
English

Citation Formats

Beverstock, David R., Kelley, Michael J., Reece, Charles E., Spradlin, Joshua K., and Valente-Feliciano, Anne-Marie. Surface Characterization of NbTiN Films for Accelerator Applications. United States: N. p., 2018. Web. doi:10.18429/JACoW-IPAC2018-THPAL142.
Beverstock, David R., Kelley, Michael J., Reece, Charles E., Spradlin, Joshua K., & Valente-Feliciano, Anne-Marie. Surface Characterization of NbTiN Films for Accelerator Applications. United States. doi:10.18429/JACoW-IPAC2018-THPAL142.
Beverstock, David R., Kelley, Michael J., Reece, Charles E., Spradlin, Joshua K., and Valente-Feliciano, Anne-Marie. Sun . "Surface Characterization of NbTiN Films for Accelerator Applications". United States. doi:10.18429/JACoW-IPAC2018-THPAL142. https://www.osti.gov/servlets/purl/1471378.
@article{osti_1471378,
title = {Surface Characterization of NbTiN Films for Accelerator Applications},
author = {Beverstock, David R. and Kelley, Michael J. and Reece, Charles E. and Spradlin, Joshua K. and Valente-Feliciano, Anne-Marie},
abstractNote = {The development of next-generation SRF cavities requires the deployment of innovative material solutions with RF performance beyond bulk Nb. Theoretical interest has stimulated efforts to grow and characterize thin multi-layer superconductor/insulator/superconductor (SIS) structures for their potential capability of supporting otherwise inaccessible surface magnetic fields in SRF cavities *. The ternary B1-compound NbTiN is among the candidate superconducting materials for SIS structures. Single crystal NbTiN films with thicknesses below 15 nm are also of interest for the development of high resolution, high sensitivity (SNSPD) detectors for particle physics application. Using DC reactive magnetron sputtering, NbTiN can be deposited with nominal superconducting parameters. This contribution presents the on-going material surface and superconducting properties characterization in order to optimize the NbTiN films for each application.},
doi = {10.18429/JACoW-IPAC2018-THPAL142},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}

Conference:
Other availability
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