Research
Superconductivity
Gate-tunable nanostructures in SrTiO3
Mesoscopic superconducting transport
Lowering dimensionality: from 2D electron gases to 1D (wires) and 0D (quantum point contacts, quantum dots)
Engineering and detecting topological superconductivity
Unconventional superconductivity of SrTiO3
Dilute superconductor
Interplay with ferroelectricity
Interplay with inhomogeneity, domain structure
What is the pairing mechanism?
Possible intrinsic topological superconductivity
Related publications
E. Mikheev, I. T. Rosen, D. Goldhaber-Gordon, "Quantized critical supercurrent in SrTiO3-based quantum point contacts", Science Advances, 7, eabi6520 (2021). arXiv. Supplement.
E. Mikheev, I. T. Rosen, M. A. Kastner, D. Goldhaber-Gordon, "Clean ballistic quantum point contact in SrTiO3", submitted. arXiv: 2110.11535.
E. Mikheev, T. Zimmerling, A. Estry, P. W. J. Moll, D. Goldhaber-Gordon, "Ionic liquid gating of SrTiO3 lamellas fabricated with a focused ion beam", submitted. arXiv: 2111.01063.
Scattering mechanisms
In titanate perovskites
The mystery of T2 resistivity
Electron-electron scattering beyond Fermi liquid description?
Non-fermi liquid resistivity / “strange metal” near quantum phase transitions
In nickelate perovskites
Resistivity saturation and bad metal behavior
Metal-insulator transitions
Related publications
E. Mikheev, B. Himmetoglu, A. P. Kajdos, P. Moetakef, T. A. Cain, C. G. Van de Walle, S. Stemmer, "Limitations to the room temperature mobility of two- and three-dimensional electron liquids in SrTiO3". Applied Physics Letters 106, 062102 (2015). Supplement.
E. Mikheev, C. R. Freeze, B. J. Isaac, T. A. Cain, S. Stemmer, "Separation of transport lifetimes in SrTiO3-based two-dimensional electron liquids". Physical Review B 91, 165125 (2015). Supplement. arXiv.
E. Mikheev, S. Raghavan, J. Y. Zhang, P. B. Marshall, A. P. Kajdos, L. Balents, S. Stemmer, "Carrier density independent scattering rate in SrTiO3-based electron liquids", Scientific Reports 6, 20865 (2016). arXiv.
P. B. Marshall, E. Mikheev, S. Raghavan, S. Stemmer, "Pseudogaps and emergence of coherence in two-dimensional electron liquids in SrTiO3", Physical Review Letters 117, 046402 (2016). Supplement.
E. Mikheev, A. J. Hauser, B. Himmetoglu, N. E. Moreno, A. Janotti, C. G. Van de Walle, S. Stemmer, "Tuning bad metal and non-Fermi liquid behavior in a Mott material: rare earth nickelate thin films", Science Advances 1, e1500797 (2015). Supplement. arXiv.
A. J. Hauser, E. Mikheev, N. E. Moreno, J. Hwang, J. Y. Zhang, S. Stemmer, "Correlation between stoichiometry, strain, and metal-insulator transitions of NdNiO3 films". Applied Physics Letters 106, 092104 (2015). Supplement.
Previous research highlights
Resistive switching memories with epitaxial SrTiO3/Pt interfaces:
E. Mikheev, B. D. Hoskins, D. B. Strukov, S. Stemmer, “Resistive switching and its suppression in Pt/Nb:SrTiO3 junctions”. Nature Communications 5, 3990 (2014). Supplement.
E. Mikheev, J. Hwang, A. P. Kajdos, A. J. Hauser, S. Stemmer, "Tailoring resistive switching in Pt/SrTiO3 junctions by stoichiometry control", Scientific Reports 5, 11079 (2015).
Epitaxial Pt/(Ba,Sr)TiO3 stacks for voltage-tunable varactors (variable capacitors) with low loss and high figures of merit:
E. Mikheev, A. P. Kajdos, A. J. Hauser, S. Stemmer, “Electric field-tunable BaxSr1−xTiO3 films with high figures of merit grown by molecular beam epitaxy”. Applied Physics Letters 101, 252906 (2012).
Polymer ferroelectric gates for charge-mediated control of ferromagnetism in (Ga,Mn)As
E. Mikheev, I. Stolichnov, E. De Ranieri, J. Wunderlich, H. J. Trodahl, A. W. Rushforth, S. W. E. Riester, R. P. Campion, K. W. Edmonds, B. L. Gallagher, N. Setter, "Magnetic domain wall propagation under ferroelectric control". Physical Review B 86, 235130 (2012). Supplement.
E. Mikheev, I. Stolichnov, A. K. Tagantsev, N. Setter: “Polarization screening in polymer ferroelectric films: uncommon bulk mechanism”. Applied Physics Letters 101, 132905 (2012).
E. Mikheev, I. Stolichnov, Z. Huang, A. W. Rushforth, J. Haigh, R. P. Campion, K. W. Edmonds, B. L. Gallagher, N. Setter, "Non-volatile ferroelectric gating of magnetotransport anisotropy in (Ga,Mn)(As,P)". Applied Physics Letters 100, 262906 (2012).