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1
Quantum Theory of Conducting Matter: Superconductivity
Chapter. 9. Supercurrents. and. Flux. Quantization. The moving supercondensate
, which is made up of ± pairons all condensed at a finite momentum p, generates
a supercurrent. Flux quantization is the first quantization effect manifested on a ...
Shigeji Fujita, Kei Ito, Salvador Godoy, 2010
2
Josephson Tunnel Junctions with Ferromagnetic Interlayer
2.3.2. Spontaneous. supercurrent. in. π. coupled. loop. Bulaevskii et al. [5]
predicted that a π coupled junction incorporated into a long superconducting ring
(e.g. a rf-SQUID with π junction or a ...
3
Progress in Low Temperature Physics
In this section we have mainly considered the transient processes caused by spin
supercurrent. In the next section we describe studies of steady spin supercurrent
between states with equivalent chemical potentials. 5. Steady spin ...
4
Dynamics of Josephson Junctions and Circuits
JOSEPHSON. SUPERCURRENT. Relations (9) and (10) for the Josephson
supercurrent are very unusual from the view of classical electrodynamics, and
they deserve a preliminary analysis to clarify the basic properties of the
supercurrent. 1.
5
Progress in Low Temperature Physics
energy eq. (16) is %curl LOI, and that L0 can be evaluated from a microscopic
calculation of the supercurrent expression. Microscopic calculation (W6lfle 1974)
confirms their supercurrent expression derived from these physical arguments.
6
Quantum Statistical Theory of Superconductivity
AC JOSEPHSON EFFECT; SHAPIRO STEPS Josephson predicted6 that on
applying a constant voltage V0, the supercurrent passing through a junction
should have an oscillatory component characterized by the Josephson (angular)
...
S. Fujita, S. Godoy, 1996
7
Introduction to Supersymmetric Field Theory
Analysing the above expressions, we note an important property of the
supercurrent and supertrace in flat global superspace. In the flat-superspace limit
, the action (6.3.7) reduces to the standard Wess-Zumino model action (3.2.11),
which is ...
8
Superconductivity: Volume 1: Conventional and Unconventional ...
Such an inhomogeneous distribution of the supercurrent density js across each
of the SIS subjunctions causes a finite phase change 6(pi along the z-direction
providing that 6 (pi = (p[ - (pi ^ 0 and 6(p2 = <?2 ~ VT- T^ 0 (see also Fig. 9.41).
Karl-Heinz Bennemann, John B. Ketterson, 2008
9
Excitonic Condensation in Bilayer Systems
Jung-Jung Su. that the width of this anomalous enhancement is proportional to ∆t
: The set up does not allow the existence of supercurrent for zero bare tunneling,
because the electrical potential is always higher in one layer than in another.
4.4.9 Spin supercurrent transport The next step in investigations of the magnon
BEC was experimental studies of spin supercurrent between two independent
HPD states, connected by a channel which was either perpendicular [33, 51, 52]
or ...
Karl-Heinz Bennemann, John B. Ketterson, 2013
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Graphene supercurrents go ballistic
This first direct observation of the ballistic mirroring of electron waves in a 2d system with supercurrents could lead to the use of graphene-based Josephson ... «Phys.Org, 7月 15»
How tiny wires trap a 'tornado'
Physicists have now figured out how to trap troublesome vortices within extremely short, ultra-thin nanowires, keeping supercurrents flowing. The discovery is ... «Futurity: Research News, 2月 15»
Scientists trap electron twisters to keep supercurrents flowing at top …
To keep supercurrents flowing at top speed, Johns Hopkins scientists have figured out how to constrain troublesome vortices by trapping them within extremely ... «The Hub at Johns Hopkins, 2月 15»
New finding may pave the way to create atomic-scale …
... on a silicon surface, a single-atom difference in height between atomic layers (atomic step) acts as a Josephson junction that controls the flow of supercurrent. «Nanowerk, 2月 15»
Discovery of Josephson junctions generated in atomic-layered …
... on a silicon surface, a single-atom difference in height between atomic layers (atomic step) acts as a Josephson junction that controls the flow of supercurrent. «Phys.Org, 2月 15»
Hybrid memory device for superconducting computing
... (anti-parallel) – determines the magnitude of the supercurrent in the Josephson junction, and whether there is zero or non-zero voltage across the junction. «Phys.Org, 1月 15»
A counterintuitive phenomenon discovered: The coexistence of …
In a superconductive state, when supercurrent flows through the nanowire, the quantum mechanical function describing the superconductivity of the wire evolves ... «Phys.Org, 6月 14»
Superconducting Breakthrough Critical Current Density ten times …
... what matters even more than the temperature at which they become superconducting, is the density of supercurrent (supercurrent flows without resistance and ... «Next Big Future, 3月 14»
To Screen or Not to Screen, That is the Question!
A careful analysis of where the supercurrent is reversed has even allowed the construction of a phase diagram of the ground state, in which a (quantum) phase ... «Physics, 7月 13»
Heat flows 'backwards' across Josephson junction
The first, predominant term is the Josephson supercurrent, which would be present even without the voltage. The second contribution is from Cooper pairs that ... «physicsworld.com, 1月 13»
