Magnetic stability of oxygen defects on the SiO2 surface

Adelstein, Nicole; Lee, Donghwa; DuBois, Jonathan L.; Ray, Keith G.; Varley, Joel B.; Lordi, Vincenzo

doi:10.1063/1.4977194

Title: Magnetic stability of oxygen defects on the SiO2 surface

Abstract

The magnetic stability of E' centers and the peroxy radical on the surface of α-quartz is investigated with first-principles calculations to understand their role in magnetic flux noise in superconducting qubits (SQs) and superconducting quantum interference devices (SQUIDs) fabricated on amorphous silica substrates. Paramagnetic E' centers are common in both stoichiometric and oxygen deficient silica and quartz, and we calculate that they are more common on the surface than the bulk. However, we find the surface defects are magnetically stable in their paramagnetic ground state and thus will not contribute to 1/f noise through fluctuation at millikelvin temperatures.

Authors:

Adelstein, Nicole ^[1];

^[1]; DuBois, Jonathan L. ^[1]; Ray, Keith G. ^[1]; Varley, Joel B. ^[1]; Lordi, Vincenzo ^[1]

Lawrence Livermore National Laboratory, Livermore, California 94550, USA and San Francisco State University, San Francisco, California 94132, USA

Publication Date:: Tue Feb 21 00:00:00 EST 2017

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1349365

Alternate Identifier(s):: OSTI ID: 1395303; OSTI ID: 1420520; OSTI ID: 1810678

Report Number(s):: LLNL-JRNL-645056
Journal ID: ISSN 2158-3226; AAIDBI; 10.1063/1.4977194

Grant/Contract Number:: AC52-07NA28344; 12-ERD-020; 15-ERD-051; AC52-07NA27344

Resource Type:: Published Article

Journal Name:: AIP Advances

Additional Journal Information:: Journal Name: AIP Advances Journal Volume: 7 Journal Issue: 2; Journal ID: ISSN 2158-3226

Publisher:: American Institute of Physics

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Silica; Crystal defects; Excited states; Valence bands; Dangling bonds

Citation Formats


                    Adelstein, Nicole, Lee, Donghwa, DuBois, Jonathan L., Ray, Keith G., Varley, Joel B., and Lordi, Vincenzo. Magnetic stability of oxygen defects on the SiO2 surface.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4977194.

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                    Adelstein, Nicole, Lee, Donghwa, DuBois, Jonathan L., Ray, Keith G., Varley, Joel B., & Lordi, Vincenzo. Magnetic stability of oxygen defects on the SiO2 surface.  United States.  https://doi.org/10.1063/1.4977194

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                    Adelstein, Nicole, Lee, Donghwa, DuBois, Jonathan L., Ray, Keith G., Varley, Joel B., and Lordi, Vincenzo. Tue .  
"Magnetic stability of oxygen defects on the SiO2 surface".  United States.  https://doi.org/10.1063/1.4977194.

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@article{osti_1349365,

  title        = {Magnetic stability of oxygen defects on the SiO2 surface},

  author       = {Adelstein, Nicole and Lee, Donghwa and DuBois, Jonathan L. and Ray, Keith G. and Varley, Joel B. and Lordi, Vincenzo},

  abstractNote = {The magnetic stability of E' centers and the peroxy radical on the surface of α-quartz is investigated with first-principles calculations to understand their role in magnetic flux noise in superconducting qubits (SQs) and superconducting quantum interference devices (SQUIDs) fabricated on amorphous silica substrates. Paramagnetic E' centers are common in both stoichiometric and oxygen deficient silica and quartz, and we calculate that they are more common on the surface than the bulk. However, we find the surface defects are magnetically stable in their paramagnetic ground state and thus will not contribute to 1/f noise through fluctuation at millikelvin temperatures.},

  doi          = {10.1063/1.4977194},

  journal      = {AIP Advances},

  number       = 2,

  volume       = 7,

  place        = {United States},

  year         = {Tue Feb 21 00:00:00 EST 2017},

  month        = {Tue Feb 21 00:00:00 EST 2017}

}

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Works referencing / citing this record:

Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption
journal, March 2018

de Graaf, S. E.; Faoro, L.; Burnett, J.
Nature Communications, Vol. 9, Issue 1
DOI: 10.1038/s41467-018-03577-2

Protecting superconducting qubits from phonon mediated decay
journal, May 2019

Rosen, Yaniv J.; Horsley, Matthew A.; Harrison, Sara E.
Applied Physics Letters, Vol. 114, Issue 20
DOI: 10.1063/1.5096182

Towards understanding two-level-systems in amorphous solids: insights from quantum circuits
journal, October 2019

Müller, Clemens; Cole, Jared H.; Lisenfeld, Jürgen
Reports on Progress in Physics, Vol. 82, Issue 12
DOI: 10.1088/1361-6633/ab3a7e

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Title: Magnetic stability of oxygen defects on the SiO2 surface

Abstract

Citation Formats

Suppression of low-frequency charge noise in superconducting resonators by surface spin desorption journal, March 2018

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journal, October 2019