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Title: Superconductivity of barium-VI synthesized via compression at low temperatures

Journal Article · · Physical Review B
 [1];  [1];  [2];  [3];  [1]
  1. Univ. of Florida, Gainesville, FL (United States). Department of Physics
  2. Univ. of Birmingham (United Kingdom). Department of Physics
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physics Division
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For this research using a membrane-driven diamond anvil cell and both ac magnetic susceptibility and electrical resistivity measurements, we have characterized the superconducting phase diagram of elemental barium to pressures as high as 65 GPa. We have determined the superconducting properties of the recently discovered Ba-VI crystal structure, which can only be accessed via the application of pressure at low temperature. We find that Ba-VI exhibits a maximum Tc near 8 K, which is substantially higher than the maximum Tc found when pressure is applied at room temperature. We discuss our results in terms of the implications for pressure-induced superconductivity in other elements exhibiting complex/modulated structures at high pressure. Lastly, we highlight the potential of cryogenic compression to reveal additional richness in previously explored high-pressure phase diagrams.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344; NA0002928
OSTI ID:
1458667
Alternate ID(s):
OSTI ID: 1408929
Report Number(s):
LLNL-JRNL-736279; PRBMDO; 887436; TRN: US1901497
Journal Information:
Physical Review B, Vol. 96, Issue 18; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

References (41)

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Anomalous superconductivity and pressure induced phase transitions in black phosphorus journal June 1985
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H.; Fisher, E. S.; Bader, S. D.</li> <li class="mb-0-5 source"> <span class="mr-1">Advances in Physics, Vol. 43, Issue 1</span> <span class="text-muted"><a href="https://doi.org/10.1080/00018739400101465" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1080/00018739400101465<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> </td> <td class="small text-muted biblio-refs-td-secondary"> <span class="biblio-refs-type-badge ml-1 type" data-type="journal">journal</span> </td> <td class="small text-muted biblio-refs-td-secondary biblio-refs-td-secondary-date"><span class="date" data-date="1994-02-01">February 1994</span></td> </tr><tr> <td> <a href="https://doi.org/10.1063/1.367113" target="_blank" rel="noopener noreferrer" class="title" data-title="Demagnetizing factors for rectangular ferromagnetic prisms">Demagnetizing factors for rectangular ferromagnetic prisms<span class="fa fa-external-link" aria-hidden="true"></span></a> <ul class="small references-list mb-0 mt-0" style="list-style-type:none; padding-left: 0; line-height:1.8em;"> <li class="authors">Aharoni, Amikam</li> <li class="mb-0-5 source"> <span class="mr-1">Journal of Applied Physics, Vol. 83, Issue 6</span> <span class="text-muted"><a href="https://doi.org/10.1063/1.367113" class="text-muted" target="_blank" rel="noopener noreferrer">https://doi.org/10.1063/1.367113<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> </td> <td class="small text-muted biblio-refs-td-secondary"> <span class="biblio-refs-type-badge ml-1 type" data-type="journal">journal</span> </td> <td class="small text-muted biblio-refs-td-secondary biblio-refs-td-secondary-date"><span class="date" data-date="1998-03-15">March 1998</span></td> </tr></tbody></table> </div> </div> </section> <hr class="mt-2 mb-2"/> <section id="section-images" data-list="list_img" class="tab-content-sec osti-curated biblio-section section-scroll" style="scroll-margin-top:110px;"> <div class="biblio-section-navbar active row"> <div class="col"> <h2 class="abstract biblio-section-title mt-0 mb-0-5" style="cursor:pointer;"><span class="fa indicator"></span> Figures / Tables (4) <span class="text-muted list-table-filternum"></span></h2> </div> <div class="col-md-12 col-lg-auto"> <form class="pure-form reference-filter d-print-none"> <div class="small biblio-section-navbar-tool"> <label for="list-table-search-figures" class="sr-only">Search figures / tables: </label> <input type="text" class="list-table-search mt-0 mb-0-5 ml-1" id="list-table-search-figures" placeholder="Search figures / tables ..."> </div> <div class="small biblio-section-navbar-tool"> <select class="list-table-sort mt-0 mb-0-5"> <option value="date">Sort by Date</option> <option value="title">Sort by Title</option> </select> </div> <div class="small biblio-section-navbar-tool"> <button type="reset" class="pure-button list-table-reset mt-0 mb-0-5">↺</button> </div> </form> </div> </div> <div class="row"> <div class="col-sm-12"> <table id="list-table-images" class="truncate-rows list-table list-table-images table-to-tiles" data-rows="1" style="width:100%;"><tbody class="list"> <tr class="biblio-image-tile "><td class="col-sm-3"> <a id="img-1458667-img122689" data-pos="first" href="#modal-image" data-modal-toggle="true" class="biblio-image-tile-a ga-click-event apporder order title desc" data-imgid="1458667-img122689" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1458667-img122689" data-apporder="p. 4" data-order="1" data-imgid="1458667-img122689" data-imgsrc="/biblio/1458667/image/000/933/0009335/2/0122689.png" data-title="FIG. 1" data-desc="(a) Schematic structural phase diagram for Ba based on Ref. [8]. (b) Phase diagram indicating superconducting critical temperature versus pressure. The solid black line indicates T<sub>c</sub> as determined by previous measurements in which pressure was varied at room temperature [17–19]. The T<sub>c</sub> of Ba-VI (black circles) reaches substantially higher values than any of the other structures of Ba. Further details of each measurement run are summarized in Table I." data-ostiid="1458667"> <div class="biblio-image-tile-inner"> <small class="name">FIG. 1<small class="pull-right text-muted" style="margin-right: .5em;top: 3px;position: relative;">(p. 4)</small><span class="d-none type">figure</span></small> <img class="img-responsive mt-0-5" alt="FIG. 1" src="/biblio/1458667/image/000/933/0009335/2/t0122689.png"/> </div> </a> </td></tr> <tr class="biblio-image-tile "><td class="col-sm-3"> <a id="img-1458667-img122686" data-pos="" href="#modal-image" data-modal-toggle="true" class="biblio-image-tile-a ga-click-event apporder order title desc" data-imgid="1458667-img122686" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1458667-img122686" data-apporder="p. 4" data-order="2" data-imgid="1458667-img122686" data-imgsrc="/biblio/1458667/image/000/933/0009335/2/0122686.png" data-title="TABLE I" data-desc="Summary of the different sets of measurements. The symbols in the leftmost column correspond to the symbols used in the phase diagram presented in Fig. 1. The column labeled “Type” indicates whether resistivity (ρ) or AC magnetic susceptibility (χ) was measured. “Measurement sequence” indicates the path that was taken through temperature-pressure phase space." data-ostiid="1458667"> <div class="biblio-image-tile-inner"> <small class="name">TABLE I<small class="pull-right text-muted" style="margin-right: .5em;top: 3px;position: relative;">(p. 4)</small><span class="d-none type">table</span></small> <img class="img-responsive mt-0-5" alt="TABLE I" src="/biblio/1458667/image/000/933/0009335/2/t0122686.png"/> </div> </a> </td></tr> <tr class="biblio-image-tile "><td class="col-sm-3"> <a id="img-1458667-img122690" data-pos="" href="#modal-image" data-modal-toggle="true" class="biblio-image-tile-a ga-click-event apporder order title desc" data-imgid="1458667-img122690" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1458667-img122690" data-apporder="p. 5" data-order="3" data-imgid="1458667-img122690" data-imgsrc="/biblio/1458667/image/000/933/0009335/2/0122690.png" data-title="FIG. 2" data-desc="Real (a) and imaginary (b) part of the magnetic susceptibility for Run A while unloading the pressure below 10 K. Each curve has been offset by a constant value for clarity. The size of the transitions are consistent with the estimated jump for a full shielding indicated by the scale bar at the bottom left of the figure." data-ostiid="1458667"> <div class="biblio-image-tile-inner"> <small class="name">FIG. 2<small class="pull-right text-muted" style="margin-right: .5em;top: 3px;position: relative;">(p. 5)</small><span class="d-none type">figure</span></small> <img class="img-responsive mt-0-5" alt="FIG. 2" src="/biblio/1458667/image/000/933/0009335/2/t0122690.png"/> </div> </a> </td></tr> <tr class="biblio-image-tile "><td class="col-sm-3"> <a id="img-1458667-img65635" data-pos="last" href="#modal-image" data-modal-toggle="true" class="biblio-image-tile-a ga-click-event apporder order title desc" data-imgid="1458667-img65635" data-lityx data-category="Extracted Images" data-label="biblio: image thumbnail" data-value="1458667-img65635" data-apporder="p. 6" data-order="4" data-imgid="1458667-img65635" data-imgsrc="/biblio/1458667/image/000/933/0009335/2/0065635.png" data-title="FIG. 3" data-desc="(a) Run C resistivity data taken while increasing the pressure at 10 K so as to enter the Ba-VI state. Superconductivity was observed beginning at 14 GPa with an incomplete transition above 2 K. The critical temperature peaked slightly above 8 K at 30 GPa. At 40 GPa the sample was annealed for 3 hours at 50 K, resulting in a slight drop in T<sub>c</sub> and broadening of the transition. (b) Resistivity at 10 K versus pressure for Run C. The resistivity dropped by factor of ∼ 2 after annealing at 50 K. The changes in the magnitude of the resistivity and superconducting transition after annealing suggest that the sample has partially converted to Ba-V." data-ostiid="1458667"> <div class="biblio-image-tile-inner"> <small class="name">FIG. 3<small class="pull-right text-muted" style="margin-right: .5em;top: 3px;position: relative;">(p. 6)</small><span class="d-none type">figure</span></small> <img class="img-responsive mt-0-5" alt="FIG. 3" src="/biblio/1458667/image/000/933/0009335/2/t0065635.png"/> </div> </a> </td></tr> </tbody></table> </div> </div> </section> <div id="modal-image" class="modal"> <div class="modal-content"> <div class="modal-header"> <span class="close" data-modal-close="true">×</span> <header id="modal-image_label" style="margin:0px;">Image title</header> </div> <div id="modal-image_body" class="modal-body"> </div> </div> </div> <hr class="mt-2 mb-2"/> <section id="section-similar" class="tab-content-sec osti-curated biblio-section section-scroll" style="scroll-margin-top:110px;"> <div class="row"> <div class="col-8" style="padding-right:40px;"> <h2 class="abstract">Similar Records</h2> <div class="" style="line-height:1.6rem;"> <a href="/biblio/22486151" target="_blank">High pressure–low temperature phase diagram of barium: Simplicity versus complexity</a> <div class="small" style="line-height:1.4rem;"> Journal Article <span style="padding-left: 0.75rem;padding-right: 0.75rem;">·</span> Mon Nov 30 00:00:00 EST 2015 <span style="padding-left: 0.75rem;padding-right: 0.75rem;">·</span> Applied Physics Letters <span style="padding-left: 0.75rem;padding-right: 0.75rem;">·</span> <span class="text-muted" style="padding-right:0.5em;">OSTI ID:</span>1458667 </div> <div class="small" style="line-height:1.4rem;"> <span class="author-link"><a href="/search/author:"Desgreniers, Serge"" class="btn btn-link btn-sm"><span class="author" itemprop="author">Desgreniers, Serge; </span></a></span> <span class="author-link"><a href="/search/author:"Matsuoka, Takahiro"" class="btn btn-link btn-sm"><span class="author" itemprop="author">Matsuoka, Takahiro; </span></a></span> <span class="author-link"><a href="/search/author:"Ohishi, Yasuo"" class="btn btn-link btn-sm"><span class="author" itemprop="author">Ohishi, Yasuo; </span></a></span> <span class="text-muted">+2 more</span> </div> <hr/> <a href="/biblio/1126988" target="_blank">Pressure-induced superconductivity and structural transitions in Ba(Fe<sub>0.9</sub>Ru<sub>0.1</sub>)<sub>2</sub>As<sub>2</sub></a> <div class="small" style="line-height:1.4rem;"> Journal Article <span style="padding-left: 0.75rem;padding-right: 0.75rem;">·</span> Wed Mar 19 00:00:00 EDT 2014 <span style="padding-left: 0.75rem;padding-right: 0.75rem;">·</span> European Physical Journal. 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