Surface state atoms and their contribution to the surface tension of quantum liquids (2009)
Grigoriev, A. D., Dyugaev, A. M., Grigoriev, P. D.
We investigate the new type of excitations on the surface of liquid helium. These excitations, called surfons, appear because helium atoms have discrete energy level at the liquid surface, being...
Kartsovnik, M. V., Grigoriev, P. D., Biberacher, W., Kushch, N. D.
The angle-dependent interlayer magnetoresistance of the layered organic metal $\alpha$-(BEDT-TTF)$_2$KHg(SCN)$_4$ is found to undergo a dramatic change from the classical conventional behavior at low...
Superconductivity on the density wave background with soliton-wall structure (2008)
Superconductivity (SC) may microscopically coexist with density wave (DW) when the nesting of the Fermi surface (FS) is not perfect. There are, at least, two possible microscopic structures of a DW...
We investigate the properties and the microscopic structure of superconductivity (SC), coexisting and sharing the common conducting band with density wave (DW). Such coexistence may take place when...
DOI:10.1051/jp4:2004114043 New electronic phase transitions in D-(BEDT-TTF)2KHg(SCN)4 (2007)
M. V. Kartsovnik, D. Andres, W. Biberacher, P. D. Grigoriev, E. A. Schuberth, H. Müller
Abstract. α-(BEDT-TTF) 2 KHg(SCN) 4 is considered to be in the charge-density-wave (CDW) state below 8 K. We present new magnetoresistance data suggesting that the material undergoes a series of...
Electron mobility on a surface of dielectric media: influence of surface level atoms (2006)
Grigoriev, P. D., Dyugaev, A. M., Lebedeva, E. V.
We calculate the contribution to the electron scattering rate from the surface level atoms (SLA), proposed in [A.M. Dyugaev, P.D. Grigoriev, JETP Lett. 78, 466 (2003)]. The inclusion of these states...
Nature of superconducting state in the new phase in (TMTSF)$_{2}$PF$_{6}$ under pressure (2006)
Gor'kov, L. P., Grigoriev, P. D.
The unusual phase has been recently observed in the organic material (TMTSF)$_{2}$PF$_{6}$, where superconductivity (SC) coexists with spin-density wave (SDW) in the pressure interval $p_{c1}
Antiferromagnetism and hot spots in CeIn$_3$ (2006)
Gor'kov, L. P., Grigoriev, P. D.
Enormous mass enhancement at ''hot spots'' on the Fermi surface (FS) of CeIn$_3$ has been reported at strong magnetic field near its antiferromagnetic (AFM) quantum critical point [T. Ebihara et al.,...
A time lens for high resolution neutron time of flight spectrometers (2005)
Baumann, K., Gaehler, R., Grigoriev, P. D., Kats, E. I.
We examine in analytic and numeric ways the imaging effects of temporal neutron lenses created by traveling magnetic fields. For fields of parabolic shape we derive the imaging equations, investigate...
Grigoriev, P. D., Lyubshin, D. S.
We develop the mean-field theory of a charge-density wave (CDW) state in magnetic field and study the properties of this state below the transition temperature. We show that the CDW state with...
Soliton phase near antiferromagnetic quantum critical point in Q1D conductors (2005)
Gor'kov, L. P., Grigoriev, P. D.
In the frameworks of a nesting model for Q1D organic conductor at the antiferromagnetic (SDW) quantum critical point the first-order transition separates metallic state from the soliton phase having...
New Electronic Phase Transitions in \alpha-(BEDT-TTF)2KHg(SCN)4 (2003)
Kartsovnik, M. V., Andres, D., Biberacher, W., Grigoriev, P. D., Schuberth, E. A., Mueller, H.
\alpha-(BEDT-TTF)2KHg(SCN)4 is considered to be in the charge-density-wave (CDW) state below 8 K. We present new magnetoresistance data suggesting that the material undergoes a series of...
Lift of degeneracy of Landau levels of 2D electron gas by point-like impurities (2003)
Dyugaev, A. M., Grigoriev, P. D., Ovchinnikov, Yu. N.
We study the density of states of two-dimensional electron gas in magnetic field with scattering on point-like impurities that are uniformly distributed along the sample. We show that the...
Orbital quantization in the high magnetic field state of a charge-density-wave system (2003)
Andres, D., Kartsovnik, M. V., Grigoriev, P. D., Biberacher, W., Mueller, H.
A superposition of the Pauli and orbital coupling of a high magnetic field to charge carriers in a charge-density-wave (CDW) system is proposed to give rise to transitions between subphases with...
The interlayer magnetoresistance in quasi-2D layered organic metals (2003)
Grigoriev, P. D., Wyder, P., Kartsovnik, M. V., Biberacher, W., Kushch, N. D.
Charged complexes at the surface of liquid helium (2002)
Dyugaev, A. M., Grigoriev, P. D., Wyder, P.
Charged clusters in liquid helium in an external electric field form a two-dimensional system below the helium surface. This 2D system undergoes a phase transition from a liquid to a Wigner crystal...
Theory of the Shubnikov-de Haas effect in quasi-two-dimensional metals (2002)
The Shubnikov - de Haas effect in quasi-two-dimensional normal metals is studied. The interlayer conductivity is calculated using the Kubo formula. The electron scattering on short-range is...
Slow oscillations of magnetoresistance in quasi-two-dimensional metals (2002)
Kartsovnik, M. V., Grigoriev, P. D., Biberacher, W., Kushch, N. D., Wyder, P.
Slow oscillations of the interlayer magnetoresistance observed in the layered organic metal $\beta $-(BEDT-TTF)$_2$IBr$_2$ are shown to originate from the slight warping of its Fermi surface rather...
Slow oscillations of magnetoresistance in quasi-two-dimensional metals (2002)
Kartsovnik, M. V., Grigoriev, P. D., Biberacher, W., Kushch, N. D., Wyder, P.
Slow oscillations of the interlayer magnetoresistance observed in the layered organic metal beta-(BEDT-TTF)(2)IBr2 are shown to originate from the slight warping of its Fermi surface rather than from...
Anomalous beating phase of the oscillating interlayer magnetoresistance in layered metals (2002)
Grigoriev, P. D., Kartsovnik, M. V., Biberacher, W., Kushch, N. D., Wyder, P.
We analyze the beating behavior of the magnetic quantum oscillations in a layered metal under the conditions when the cyclotron energy (h) over bar omega(c) is comparable to the interlayer transfer...
Shubnikov-de Haas effect in quasi-two-dimensional compounds (2001)
Grigoriev, P. D., Kartsovnik, M. V., Biberacher, W., Wyder, P.
The Shubnikov - de Haas effect in quasi-two-dimensional compounds is studied. The conductivity is calculated from the Kubo formula. Two effects -- the field-dependent phase shift of the beats and the...
Anomalous beating phase of the oscillating interlayer magnetoresistance in layered metals (2001)
Grigoriev, P. D., Kartsovnik, M. V., Biberacher, W., Kushch, N. D., Wyder, P.
We analyze the beating behavior of the magnetic quantum oscillations in a layered metal under the conditions when the cyclotron energy $\hbar \omega_c $ is comparable to the interlayer transfer...
The de Haas - van Alphen effect in two-dimensional metals (2000)
Grigoriev, P. D., Vagner, I. D.
The de Haas - van Alphen effect in two-dimensional (2D) metals is investigated at different conditions and with different shapes of Landau levels (LLs). The analytical calculations can be done when...