Luna, KatherineWu, Phillip M.Chen, Justin S.Morosan, EmiliaBeasley, Malcolm R.2016-06-102016-06-102015Luna, Katherine, Wu, Phillip M., Chen, Justin S., et al.. "Point-contact tunneling spectroscopy measurement of CuxTiSe2: Disorder-enhanced Coulomb effects." <i>Physical Review B,</i> 91, no. 9 (2015) American Physical Society: 094509. http://dx.doi.org/10.1103/PhysRevB.91.094509.https://hdl.handle.net/1911/90506We 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.engArticle 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.Journal articlehttp://dx.doi.org/10.1103/PhysRevB.91.094509