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    Point-contact tunneling spectroscopy measurement of CuxTiSe2: Disorder-enhanced Coulomb effects

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    Author
    Luna, Katherine; Wu, Phillip M.; Chen, Justin S.; Morosan, Emilia; Beasley, Malcolm R.
    Date
    2015
    Abstract
    We performed point-contact spectroscopy tunneling measurements on CuxTiSe2 bulk with x=0.02 and 0.06 at temperatures ranging from T=4−40 K and observe a suppression in the density of states around zero bias that we attribute to enhanced Coulomb interactions due to disorder. We find that the correlation gap associated with this suppression is related to the zero-temperature resistivity. We use our results to estimate the disorder-free transition temperature and find that the clean limit Tc0 is close to the experimentally observed Tc at optimal doping.
    Citation
    Luna, Katherine, Wu, Phillip M., Chen, Justin S., et al.. "Point-contact tunneling spectroscopy measurement of CuxTiSe2: Disorder-enhanced Coulomb effects." Physical Review B, 91, no. 9 (2015) American Physical Society: 094509. http://dx.doi.org/10.1103/PhysRevB.91.094509.
    Published Version
    http://dx.doi.org/10.1103/PhysRevB.91.094509
    Type
    Journal article
    Publisher
    American Physical Society
    Citable link to this page
    https://hdl.handle.net/1911/90541
    Rights
    Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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    • Faculty Publications [4988]
    • Physics and Astronomy Publications [1771]

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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map