Zobrazeno 1 - 10
of 97
pro vyhledávání: '"K. A. Kikoin"'
Publikováno v:
Europhysics Letters (EPL). 64:218-224
The effective spin Hamiltonian of a triple quantum dot with odd electron occupation weakly connected in series with left ($l$) and right ($r$) metal leads is composed of two-channel exchange and co-tunneling terms. Renormalization group equations for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d6fe43a913ec7560d7b8c99613b0c90
https://doi.org/10.1209/epl/i2003-00296-0
https://doi.org/10.1209/epl/i2003-00296-0
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 77:366-370
A new mechanism of resonance Kondo tunneling via a composite quantum dot (QD) is proposed. It is shown that, owing to the hidden dynamic spin symmetry, the Kondo effect can be induced by a finite voltage eV applied to the contacts at an even number N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dbc8a04d5daeea99d3a8584172c331a
https://doi.org/10.1134/1.1581962
https://doi.org/10.1134/1.1581962
Publikováno v:
Journal of magnetism and magnetic materials
A microscopic Hamiltonian for interacting manganese impurities in diluted magnetic semiconductors (DMS) is derived. It is shown that in p -type III-V DMS the indirect exchange between Mn impurities has similarities with the Zener mechanism in transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9597aa4cb7436008ae170c3e89e424ad
https://doi.org/10.1016/s0304-8853(02)01023-5
https://doi.org/10.1016/s0304-8853(02)01023-5
Publikováno v:
Europhysics letters
An energy level diagram is constructed on the basis of a microscopic Hamiltonian proposed for a description of interacting manganese impurities in diluted magnetic semiconductors (DMS). It is shown that ferromagnetism in p-type III-V DMS is governed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18d0e187cf6da25f01928e43db4f6f7a
https://doi.org/10.1209/epl/i2003-00224-x
https://doi.org/10.1209/epl/i2003-00224-x
Publikováno v:
Low Temperature Physics. 28:539-546
The spectrum of boson fields and two-point correlators are analyzed in a quantum bar system (a superlattice formed by two crossed interacting arrays of quantum wires), with a short-range interwire interaction. The standard bosonization procedure is s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e6df7b42e2985a57874ae888cf96b98
https://doi.org/10.1063/1.1496664
https://doi.org/10.1063/1.1496664
Autor:
Ilya V. Krive, R. I. Shekhter, K A Kikoin, A. V. Parafilo, S. I. Kulinich, Mikhail N. Kiselev, Leonid Y. Gorelik, Mats Jonson
A single-electron tunneling (SET) device with a nanoscale central island that can move with respect to the bulk source- and drain electrodes allows for a nanoelectromechanical (NEM) coupling between the electrical current through the device and mecha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8932f142d5cbccb8d3ba98185fdda951
http://dspace.nbuv.gov.ua/handle/123456789/119536
http://dspace.nbuv.gov.ua/handle/123456789/119536
Autor:
Yshai Avishai, K A Kikoin
Publikováno v:
Physical Review Letters. 86:2090-2093
When a cerocene molecule is chemisorbed on metallic substrate, or when an asymmetric double dot is hybridized with itinerant electrons, its singlet ground state crosses its lowly excited triplet state, leading to a competition between the Zhang-Rice
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f994659667b15eeaac98c72ae62002a2
https://doi.org/10.1103/physrevlett.86.2090
https://doi.org/10.1103/physrevlett.86.2090
Autor:
K A Kikoin, Yshai Avishai
Publikováno v:
Physical Review B. 62:4647-4655
Anderson impurity model for semiconductor quantum dot is extended to take into account both particle and hole branches of charge excitations. It is shown that in dots with even number of electrons where the Kondo effect is absent in the ground state,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4ed67ce54d046ffb5192c392b2584b9
https://doi.org/10.1103/physrevb.62.4647
https://doi.org/10.1103/physrevb.62.4647
Autor:
K A Kikoin, Stephanie Curnoe
Publikováno v:
Physical Review B. 61:15714-15725
${\mathrm{SmB}}_{6}$ exhibits intermediate valence in the ground state and unusual behavior at low temperatures. The resistivity and the Hall effect cannot be explained either by conventional sf hybridization or by hopping transport in an impurity ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9363266de75c8de11b2f65f029c7c29c
https://doi.org/10.1103/physrevb.61.15714
https://doi.org/10.1103/physrevb.61.15714
Publikováno v:
Journal of Magnetism and Magnetic Materials. 310:2414-2416
We investigate transport through a mononuclear rare-earth metal-organic shell complex with strong tunnel coupling between the shell and two electrodes. The ground state of this molecule is a singlet while the first excited state is a triplet. We show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec9e3fb959a5947bef4c9d0d9da3f94
https://doi.org/10.1016/j.jmmm.2006.10.801
https://doi.org/10.1016/j.jmmm.2006.10.801