Nanoscale Research in Quantum Materials

headlineJohn Wei GROUP           
Condensed Matter Physics

University of Toronto              

Select Publications:
1. Observation of In-Plane Vortex Lattice Transition in the Multiband Superconductor 2H-NbSe2 by Scanning Tunneling Spectroscopy   
Preprint, arXiv:1303.3559. pdf  

2. Attenuation of superconductivity in manganite/cuprate thin-film heterostructures by epitaxially induced CuO intergrowths
Applied Physics Letters 103, 052606 (2013). pdf 

3. Identifying the order-parameter symmetry of superconducting PrOs4Sb12 by Andreev reflection spetroscopy: Evidence for unconventional pairing involving multiple bands
Preprint (2012) pdf

4. Spectroscopic signatures of the Larkin-Ovchinnikov state in the conductance characteristics of a normal-metal/superconductor junction
Physical Review B 85 014503 (2012). pdf

5. Scanning tunneling spectroscopy study of c-axis proximity effect in epitaxial bilayer manganite/cuprate thin films,
Physical Review B 84 104522 (2011).  pdf

6. Lateral Imaging of the Superconducting Vortex Lattice using Doppler Modulated Scanning Tunneling Microscopy
Applied Physics Letters 99, 192505 (2011).  pdf

7. Andreev Nanoprobe of Half-Metallic CrO2 Films using Superonducting Cuprate Tips
Applied Physics Letters 99, 192508 (2011).  pdf

8. Local tunneling probe of (110) Y0.95Ca0.05Ba2Cu3O7-d thin films in a magnetic field
Physical Review B 82, 054505 (2010).  pdf
9. STM Spectroscopy on Superconducting FeSe1−xTex Single Crystals at 300 mK
Journal of Physics and Chemistry of Solids, Volume 72-5, 483 (2011). pdf

10. Andreev Spectroscopy Study of Multigap Pairing in PrOs4Sb12
Journal of the Physical Society of Japan 77, 21 (2008).  pdf

11. Tunneling Spectroscopy on c-axis Y1-xCaxBa2Cu3O7-d Thin Films
Physical Review Letters 98, 177003 (2007).  pdf

12. Conductance characteristics between a normal metal and a 2D Fulde-Ferrell-Larkin-
Ovchnnikov superconductor: the Fulde-Ferrell state
Physical Review B 73, 214514 (2006). pdf

13. Spectroscopic Evidence for Multiple Order Parameter Components in the Heavy Fermion Superconductor CeCoIn5
Physical Review Letters 94, 107005 (2005). pdf
People:   Prof. John Wei  Students 

Labs:       Cryomagnetics  Laser Deposition  Nanofabrication 

Sponsors & Affiliations: 
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