Aharonov-Bohm oscillations in the local density of states
نویسندگان
چکیده
منابع مشابه
Anomalous Aharonov-Bohm conductance oscillations from topological insulator surface states.
We study Aharonov-Bohm (AB) conductance oscillations arising from the surface states of a topological insulator nanowire, when a magnetic field is applied along its length. With strong surface disorder, these oscillations are predicted to have a component with anomalous period Φ(0)=hc/e, twice the conventional period. The conductance maxima are achieved at odd multiples of 1/2Φ(0), implying tha...
متن کاملMesoscopic Aharonov-bohm Oscillations in Metallic Rings
We study the amplitude of mesoscopic Aharonov-Bohm oscillations in quasi-one-dimensional (Q1D) diffusive rings. We consider first the lowtemperature limit of a fully coherent sample. The variance of oscillation harmonics is calculated as a function of the length of the leads attaching the ring to reservoirs. We further analyze the regime of relatively high temperatures, when the dephasing due t...
متن کاملPatterns of the Aharonov-Bohm oscillations in graphene nanorings
Using extensive tight-binding calculations, we investigate (including the spin) the Aharonov-Bohm (AB) effect in monolayer and bilayer trigonal and hexagonal graphene rings with zigzag boundary conditions. Unlike the previous literature, we demonstrate the universality of integer (hc/e) and half-integer (hc/2e) values for the period of the AB oscillations as a function of the magnetic flux, in ...
متن کاملPhase of Aharonov-bohm Oscillations in Conductance of Mesoscopic Systems
Motivated by a recent experiment we analyze in detail the phase of Aharonov-Bohm oscillations across a 1D ring with a stub coupled to one of its arms, in the presence of a magnetic flux. We demonstrate that there are two kinds of conductance extremas. One class of them are fixed at particular flux values and can only change abruptly from a maxima to a minima as incident energy is varied. We sho...
متن کاملQuantum mechanics. Putting a spin on the Aharonov-Bohm oscillations.
Of the many fascinating consequences of quantum mechanics, among the more mysterious ones is the Aharonov-Bohm effect. According to classical physics, a charged particle would be influenced by a magnetic field only if the particle goes through a region in which the magnetic field strength is nonzero. But according to quantum mechanics, if the quantum wave representing the state of a charged par...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2009
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.80.153401