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Spin current and magneto-electric effect in non-collinear magnets
Hosho Katsura, Naoto Nagaosa, Alexander V. Balatsky
A new microscopic mechanism of the magneto-electric (ME) effect based on the spin supercurrent is theoretically presented for non-collinear magnets. The close analogy between the s…
Impurity-induced states in conventional and unconventional superconductors
A. V. Balatsky, I. Vekhter, Jian-Xin Zhu
We review recent developments in our understanding of how impurities influence the electronic states in the bulk of superconductors. Our focus is on the quasi-localized states in t…
Detecting Breather Excitations with Inelastic Tunneling Spectroscopy
Jian-Xin Zhu, K. O. Rasmussen, A. R. Bishop +1
We propose inelastic electron tunneling spectroscopy scanning tunneling microscopy (IETS-STM) as a means of exciting and observing intrinsic localized modes (breathers) in a macrom…
Spin and Current Variations in Josephson Junctions
A. Shnirman, Z. Nussinov, Jian-Xin Zhu +2
We study the dynamics of a single spin embedded in the tunneling barrier between two superconductors. As a consequence of pair correlations in the superconducting state, the spin d…
1/f Spin Noise and a Single Spin Detection with STM
Yishai Manassen, A. V. Balatsky
We propose a novel mechanism for single spin detection based on the 1/f spin current noise. We postulate the 1/f spin noise for the tunneling current, similar to the ubiquitous 1/f…