output
19972026
most citedAncient human genomes suggest three ancestral populations for present-day Europeans

1.5k citations

Showing 1999Show all

8 papers · 1 filter

cond-mat.mes-hall1999★ 5 cited

Interaction of surface acoustic waves with a two-dimensional electron gas in the presence of spin splitting of the Landau bands

I. L. Drichko, A. M. Diakonov, V. V. Preobrazenskiy +2

The absorption and variation of the velocity of a surface acoustic wave of frequency = 30 MHz interacting with two-dimensional electrons are investigated in GaAs/AlGaAs heterost…

physics.chem-ph1999★ 6 cited

Light-induced conversion of nuclear spin isomers of molecules

A. M. Shalagin, L. V. Il'ichov

We report on a new phenomenon of molecular nuclear spin isomers conversion in the field of resonant laser radiation. It is based on the isomer-selective optical excitation and the…

hep-ex1999★ 133 cited

Spherical Neutral Detector for VEPP-2M collider

M. N. Achasov, V. M. Aulchenko, S. E. Baru +29

The Spherical Neutral Detector (SND) operates at VEPP-2M collider in Novosibirsk studying e^+e^- annihilation in the energy range up to 1.4 GeV. Detector consists of a fine granula…

physics.optics1999★ 8 cited

Lasing on the D_2 line of sodium in helium atmosphere due to optical pumping on the D_1 line (up-conversion)

A. A. Apolonsky, S. A. Babin, S. I. Kablukov +3

A new method is proposed to produce population inversion on transitions involving the ground state of atoms. The method is realized experimentally with sodium atoms. Lasing at the…

physics.chem-ph1999★ 9 cited

On spin-rotation contribution to nuclear spin conversion in C_{3v}-symmetry molecules. Application to CH_3F

K. I. Gus'kov

The symmetrized contribution of E-type spin-rotation interaction to conversion between spin modifications of E- and A_1-types in molecules with C_{3v}-symmetry is considered. Using…

cond-mat.str-el1999★ 2 cited

Invariant spin coherent states and the theory of quantum antiferromagnet in a paramagnetic phase

Victor I. Belinicher, Joao da Providencia

The consistent theory of the Heisenberg quantum antiferromagnet in the disordered phase with short range antiferromagnetic order was developed on the basis of the path integral for…

cond-mat.supr-con1999★ 23 cited

Resistive Transition and Upper Critical Field in Underdoped YBa_2Cu_3O_{6+x} Single Crystals

V. F. Gantmakher, G. E. Tsydynzhapov, L. P. Kozeeva +1

A superconducting transition in the temperature dependence of the ab-plane resistivity of underdoped YBa_2Cu_3O_{6+x} crystals in the range T_c<30 K has been investigated. Unlike t…

astro-ph1999★ 19 cited

Azimuthal modulation of the event rate of cosmic ray extensive air showers by the geomagnetic field

A. A. Ivanov, V. P. Egorova, V. A. Kolosov +3

The Earth's magnetic field effect on the azimuthal distribution of extensive air showers (EAS) of cosmic rays has been evaluated using a bulk of the Yakutsk array data. The uniform…