000099243 001__ 99243
000099243 005__ 20210902121937.0
000099243 0247_ $$2doi$$a10.1103/PhysRevApplied.14.054072
000099243 0248_ $$2sideral$$a122633
000099243 037__ $$aART-2020-122633
000099243 041__ $$aeng
000099243 100__ $$aMorosh, V.
000099243 245__ $$aTransport and Noise Properties of sub-100-nm Planar Nb Josephson Junctions with Metallic Hf-Ti Barriers for nano-SQUID Applications
000099243 260__ $$c2020
000099243 5060_ $$aAccess copy available to the general public$$fUnrestricted
000099243 5203_ $$aWe analyze electric transport and noise properties at 4.2 K of self-shunted superconductor-normal metal-superconductor (SNS) sandwich-type Josephson junctions, comprising Nb as the superconductor and Hf-Ti as the normal conducting material, with lateral dimensions down to approximately 80 nm. The junctions are fabricated with an optimized multilayer Nb technology based on nanopatterning by electron-beam lithography and chemical-mechanical polishing. The dependence of transport properties on the junction geometry (lateral size and barrier thickness d(Hf-Ti)) is studied, yielding a characteristic voltage V-c up to approximately 100 mu V for the smallest d(Hf-Ti) = 17 nm. The observed small hysteresis in the current-voltage curves of devices with high V-c and large size can be attributed to self-heating of the junctions and fitted with an extended version of the resistively shunted junction model. Measurements of voltage noise of single junctions are consistent with the model including self-heating effects. The potential of our technology for further miniaturization of nanoscale superconducting quantum interference devices and for the improvement of their performance is discussed.
000099243 536__ $$9info:eu-repo/grantAgreement/EUR/COST-Action/CA16218
000099243 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000099243 590__ $$a4.985$$b2020
000099243 591__ $$aPHYSICS, APPLIED$$b36 / 160 = 0.225$$c2020$$dQ1$$eT1
000099243 592__ $$a1.883$$b2020
000099243 593__ $$aPhysics and Astronomy (miscellaneous)$$c2020$$dQ1
000099243 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000099243 700__ $$aLinek, J.
000099243 700__ $$aMuller, B.
000099243 700__ $$0(orcid)0000-0002-8125-877X$$aMartinez-Perez, M.J.$$uUniversidad de Zaragoza
000099243 700__ $$aWolter, S.
000099243 700__ $$aWeimann, T.
000099243 700__ $$aBeyer, J.
000099243 700__ $$aSchurig, T.
000099243 700__ $$aKieler, O.
000099243 700__ $$aZorin, A.B.
000099243 700__ $$aKleiner, R.
000099243 700__ $$aKoelle, D.
000099243 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000099243 773__ $$g14, 5 (2020), 054072 [12 pp]$$pPhys. rev. appl.$$tPhysical Review Applied$$x2331-7019
000099243 8564_ $$s1783324$$uhttps://zaguan.unizar.es/record/99243/files/texto_completo.pdf$$yVersión publicada
000099243 8564_ $$s2803701$$uhttps://zaguan.unizar.es/record/99243/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000099243 909CO $$ooai:zaguan.unizar.es:99243$$particulos$$pdriver
000099243 951__ $$a2021-09-02-10:58:42
000099243 980__ $$aARTICLE