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Magnetoresistance measurements on the quasi one-dimensional organic conductor (TMTSF)_2PF_6 performed in magnetic fields B up to 16T, temperatures T down to 0.12K and under pressures P up to 14kbar have revealed new phases on its P-B-T…

A self-consistent particle-in-cell simulation study is performed to investigate the effect of driving frequency on the electric field non-linearity, electron heating mechanism and electron energy distribution function (EEDF) in a low…

Plasma Physics · Physics 2020-04-22 Sarveshwar Sharma , Nishant Sirse , Animesh Kuley , Miles M Turner

In contrast to metals with weak disorder, the resistivity of weakly-pinned charge density waves (CDWs) is not controlled by irrelevant processes relaxing momentum. Instead, the leading contribution is governed by incoherent, diffusive…

High Energy Physics - Theory · Physics 2018-05-02 Andrea Amoretti , Daniel Areán , Blaise Goutéraux , Daniele Musso

We show that the isotropic conductivity in the normal state of rare-earth tritelluride RTe_3 compounds is broken by the occurrence of the unidirectional charge density wave (CDW) in the (a,c) plane below the Peierls transition temperature.…

Strongly Correlated Electrons · Physics 2014-10-24 A. A. Sinchenko , P. D. Grigoriev , P. Lejay , P. Monceau

We report results of magnetotransport measurements on KV$_3$Sb$_5$ thin flakes under pressure. Our zero-field electrical resistance reveals an additional anomaly emerging under pressure ($p$), marking a previously unidentified phase…

It is well documented that SDW in (TMTSF)2PF6 undergoes another phase transition at T*\approx 4K, though the nature of the new low temperature phase is controversial. We have shown recently that the new phase is well described in terms of…

Strongly Correlated Electrons · Physics 2007-05-23 M. Basletic , B. Korin-Hamzic , A. Hamzic , K. Maki

The transverse magnetoresistance of the Bechgaard salt (TMTSF)$_2$PF$_6$ has been measured for various pressures, with the field up to 24 T parallel to the lowest conductivity direction c$^{\ast}$. A quadratic behavior is observed in the…

Strongly Correlated Electrons · Physics 2009-11-07 N. Matsunaga , K. Yamashita , H. Kotani , K. Nomura , T. Sasaki , T. Hanajiri , J. Yamada , S. Nakatsuji , H. Anzai

When a beam of light is laterally confined, its field distribution can exhibit points where the local magnetic and electric field vectors spin in a plane containing the propagation direction of the electromagnetic wave. The phenomenon…

Optics · Physics 2018-05-23 Martin Neugebauer , Jörg Eismann , Thomas Bauer , Peter Banzer

Charge density wave (CDW) instability is often found in phase diagrams of superconductors such as cuprates and certain transition-metal dichalcogenides. This proximity to superconductivity triggers the question on whether CDW instability is…

We compute the electrical and thermal conductivities and Hall conductivities of the $d$-density wave (DDW) state in the low-temperature impurity-scattering-dominated regime for low-dopings, at which they are dominated by nodal…

Strongly Correlated Electrons · Physics 2016-08-31 Xiao Yang , Chetan Nayak

We studied TbTe$_{3}$ using scanning tunneling microscopy (STM) in the temperature range of 298 - 355 K. As seen in previous STM measurements on RTe$_{3}$ compounds, our measurements detect a unidirectional charge density wave state (CDW)…

Materials Science · Physics 2016-11-09 Ling Fu , Aaron M. Kraft , Bishnu Sharma , Manoj Singh , Philip Walmsley , Ian R. Fisher , Michael C. Boyer

Threshold current of domain wall motion under spin-polarized electric current in ferromagnets is theoretically studied based on the equation of motion of a wall in terms of collective coordinates. Effects of non-adiabaticity and a so-called…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Gen Tatara , Toshihiko Takayama , Hiroshi Kohno , Junya Shibata , Yoshinobu Nakatani , Hidetoshi Fukuyama

The effect of strain on charge density wave (CDW) order in $\alpha$-U is investigated within the framework of relativistic density-functional theory. The energetical stability of $\alpha$-U with CDW distortion is enhanced by the tensile…

Strongly Correlated Electrons · Physics 2022-06-08 Liuhua Xie , Hongkuan Yuan , Ruizhi Qiu

About a half of the Fermi surface in rare-earth tritellurides RT e3 becomes gapped below the transition to a charge-density-wave (CDW) state, as revealed by ARPES data. However, the observed jump in resistivity during the CDW transition is…

Superconductivity · Physics 2019-10-02 Kaushal Kumar Kesharpu , Pavel Dmitrievich Grigoriev

The two-dimensional rare-earth tri-tellurides undergo a unidirectional charge-density-wave (CDW) transition at high temperature and, for the heaviest members of the series, a bidirectional one at low temperature. Raman scattering…

Strongly Correlated Electrons · Physics 2015-05-14 M. Lavagnini , H. -M. Eiter , L. Tassini , B. Muschler , R. Hackl , R. Monnier , J. -H. Chu , I. R. Fisher , L. Degiorgi

\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 field-induced CDW (FICDW) transitions at pressures…

Strongly Correlated Electrons · Physics 2009-11-10 M. V. Kartsovnik , D. Andres , W. Biberacher , P. D. Grigoriev , E. A. Schuberth , H. Mueller

This study investigates the electronic states and physical quantities of an organic charge-transfer complex HMTSF-TCNQ, which undergoes a charge-density-wave (CDW) phase transition at temperature $T_c\simeq 30$ K. A first-principles…

Materials Science · Physics 2021-11-03 S. Ozaki , I. Tateishi , H. Matsuura , M. Ogata , K. Hiraki

We consider a 2D electron system on a square lattice with hopping beyond nearest neighbors. The existence of the quantum critical point associated with an electronic topological transition in the noninteracting system results in density…

Strongly Correlated Electrons · Physics 2016-08-31 F. Bouis , M. N. Kiselev , F. Onufrieva , P. Pfeuty

Charge density wave (CDW) is a collective quantum phenomenon with a charge modulation in solids1-2. Condensation of electron and hole pairs with finite momentum will lead to such an ordered state3-7. However, lattice symmetry breaking…

Superconductivity in the cuprates is found to be intertwined with charge and spin density waves. Determining the interactions between the different types of order is crucial for understanding these important materials. Here, we elucidate…

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