Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Mikhail Raikh"'
Autor:
R. E. Putnam, Mikhail Raikh
Publikováno v:
Physical Review B. 104
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e733a4e689df6addb59ab5fd3d01ec78
https://doi.org/10.1103/physrevb.104.195425
https://doi.org/10.1103/physrevb.104.195425
Autor:
R. E. Putnam, Mikhail Raikh
Hydrogenic excited states of a 2D exciton are degenerate. In the presence of a weak magnetic field, the $S$-states with a zero momentum of the center of mass get coupled to the $P$-states with finite momentum of the center of mass. This field-induced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12586492837b8df78cf849a5730ce07d
http://arxiv.org/abs/2105.08914
http://arxiv.org/abs/2105.08914
A weak perpendicular magnetic field, $B$, breaks the chiral symmetry of each valley in the electron spectrum of graphene, preserving the overall chiral symmetry in the Brillouin zone. We explore the consequences of this symmetry breaking for the inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6abecbc3a3f45c346cf3e626405d665e
Two opposite chiralities of Dirac electrons in a 2D graphene sheet modify the Friedel oscillations strongly: electrostatic potential around an impurity in graphene decays much faster than in 2D electron gas. At distances $r$ much larger than the de B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb1d115161c144b93399143208297386
Autor:
Mikhail Raikh
Size-quantization levels of an exciton in large nanocrystals is studied theoretically. For the nanocrystal size, $L$, much bigger than the Bohr radius, $a_B$, the level positions do not depend on $a_B$. The correction to the levels in a small paramet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::048ebfcb8c94dec6296a1f30a4cb3444
Autor:
Mikhail Raikh, Nathan L. Foulk
It is known that the presence of the Fermi sea modifies the scattering of an electron from a point-like impurity. This is due to the Friedel oscillations of the electron density around the impurity. These oscillations create an additional scattering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::111197467280e42eff108dc88ccca699
Publikováno v:
Physical Review B. 100
We address the textbook problem of dynamics of a spin placed in a dc magnetic field and subjected to an ac drive. If the drive is polarized in the plane perpendicular to the dc field, the drive photons are resonantly absorbed when the spacing between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e67cb0afef8291f1b5aa97e3a94d6eef
https://doi.org/10.1103/physrevb.100.214205
https://doi.org/10.1103/physrevb.100.214205
Autor:
R. E. Putnam, Mikhail Raikh
Publikováno v:
Solid State Communications. 340:114522
Effect of short-range disorder on the excited states of the exciton is studied. Disorder causes an obvious effect of broadening. Microscopically, an exciton, as an entity, is scattered by the large-scale disorder fluctuations. Much less trivial is th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc6494789ffde6a0c228235d42368fc0
https://doi.org/10.1016/j.ssc.2021.114522
https://doi.org/10.1016/j.ssc.2021.114522