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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Dear Esta,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">I agree with Aimee as you don’t want to introduce oxygen in an e-beam evaporator dedicated for metals.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">As to the SiO2/Ag stack I believe this can be done in a sputter system if the system can have both metals and oxides. We do have a sputter system we use for all types of materials.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Regards, Fouad<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">*************************************<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Manager ANFF ACT Node<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Australian National Fabrication Facility<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Research School of Physics and Engineering<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">L. Huxley Building (#56), Mills Road, Room 4.02<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Australian National University<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">ACT 0200, Canberra, Australia<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Tel: + 61 2 6125 7174<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Mob: + 61 451 046 412<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Email: <a href="mailto:fouad.karouta@anu.edu.au">
<span style="color:blue">fouad.karouta@anu.edu.au</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="http://anff-act.anu.edu.au/"><span style="color:blue">http://anff-act.anu.edu.au/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Price, Aimee<br>
<b>Sent:</b> Tuesday, 1 August 2017 11:47 PM<br>
<b>To:</b> Abelev, Esta <eabelev@pitt.edu>; labnetwork@mtl.mit.edu<br>
<b>Subject:</b> Re: [labnetwork] Metamaterials deposition - Ag and SiO2<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Esta,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">We have not, to my knowledge, done multilayer stacks. However, we do evaporate SiO2 in our “multi-use” ebeam evaporator but not in the one we use for metal contacts. We use a different quartz crystal
monitor for SiO2 and Hafnium oxide than we do for metals. We have found that using separate crystals works best to maintain proper z-ratios for both.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">I’ve copied our lab manager who has worked extensively on this.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Aimee<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">
</span><a href="mailto:labnetwork-bounces@mtl.mit.edu"><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">labnetwork-bounces@mtl.mit.edu</span></a><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> [</span><a href="mailto:labnetwork-bounces@mtl.mit.edu"><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">mailto:labnetwork-bounces@mtl.mit.edu</span></a><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">]
<b>On Behalf Of </b>Abelev, Esta<br>
<b>Sent:</b> Monday, July 31, 2017 8:10 PM<br>
<b>To:</b> </span><a href="mailto:labnetwork@mtl.mit.edu"><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif">labnetwork@mtl.mit.edu</span></a><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif"><br>
<b>Subject:</b> [labnetwork] Metamaterials deposition - Ag and SiO2<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Dear Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Recently, we got a request to deposit SiO2 and Ag in our e-beam evaporator. We have only one e-beam UHV evaporator (brand new) which we planned to dedicate for metals (only). From what was discussed the group is planning
to deposit alternative layers of SiO2 and Ag (10-20nm thick) to ~1micron thick overall thickness.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Did anyone have experience with similar multilayer structures, would you advise me if e-beam evaporation or sputtering would better for this project?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If we will have to go with evaporation of SiO2, will it have contamination issues with metal deposition?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks for advice, Esta<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta">-----------------------</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta">Esta Abelev, PhD</span></b><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta">Technical Director,<i> </i>Petersen Institute of NanoScience and Engineering </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta">University of Pittsburgh | 3700 O’Hara Street | 636| Pittsburgh, PA 15261</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta">412-383-4096 | </span><a href="mailto:eabelev@pitt.edu"><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta;color:#0066CC;text-decoration:none">eabelev@pitt.edu</span></a><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta"> | </span><a href="https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.nano.pitt.edu%2F&data=01%7C01%7Ceabelev%40pitt.edu%7C9f5bd58ba84940765cf308d4024fbe18%7C9ef9f489e0a04eeb87cc3a526112fd0d%7C1&sdata=3KfbG5VbshqdoIAPxvX%2F2s1UeU7ultmBoZmm%2FaZ2Itc%3D&reserved=0"><span lang="EN-US" style="font-size:9.0pt;font-family:Atlanta;color:purple;text-decoration:none">nano.pitt.edu</span></a><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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