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Related papers: Magnetic-field-induced transition in BaVS3

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TbV$_6$Sn$_6$ is a topological metal where ferromagnetic Tb ions with strong uniaxial magnetic anisotropy interact with V kagome layers. Inelastic neutron scattering (INS) measurements show that the Tb ions adopt an Ising doublet ground…

Ab initio calculations predict a metal-insulator transition at zero temperature to occur in La$_4$Ni$_3$O$_8$ at moderate pressures as a result of a pressure-induced spin-state transition. The spin-state transition that is seen at 105 K at…

Strongly Correlated Electrons · Physics 2015-05-28 Victor Pardo , Warren E. Pickett

While the Berezinskii-Kosterlitz-Thouless transition (BKT) has been under intense scrutiny for decades, unambiguous experimental signatures in magnetic systems remain elusive. Here, we investigate the interplay between electronic and…

Mesoscale and Nanoscale Physics · Physics 2021-07-21 B. Flebus

The charge response in the barium vanadium sulfide (BaVS3) single crystals is characterized by dc resistivity and low frequency dielectric spectroscopy. A broad relaxation mode in MHz range with huge dielectric constant ~= 10^6 emerges at…

Strongly Correlated Electrons · Physics 2009-11-13 T. Ivek , T. Vuletic , S. Tomic , A. Akrap , H. Berger , L. Forro

Kondo insulators are predicted to undergo an insulator-to-metal transition under applied magnetic field, yet the extremely high fields required to date have prohibited a comprehensive investigation of the nature of this transition. Here we…

Magnetic field and temperature dependence of the Terahertz conductivity and permittivity of the colossal magnetoresistance manganite Pr_{0.65}Ca_{0.28}Sr_{0.07}MnO_3 (PCSMO) is investigated approaching the metal-to-insulator transition…

Strongly Correlated Electrons · Physics 2007-05-23 A. Pimenov , M. Biberacher , D. Ivannikov , A. Loidl , A. A. Mukhin , Yu. G. Goncharov , A. M. Balbashov

Epitaxial SrTi1-xVxO3 thin films with thicknesses of ~16 nm were grown on (001)-oriented LSAT substrates using the pulsed electron-beam deposition technique. The transport study revealed a temperature driven metal-insulator transition (MIT)…

Strongly Correlated Electrons · Physics 2015-06-17 Man Gu , Stuart A. Wolf , Jiwei Lu

Motivated by the resistive switchings in transition-metal oxides (TMOs) induced by a voltage bias, we study the far-from-equilibrium dynamics of an electric-field-driven strongly-correlated model featuring a first-order insulator-to-metal…

Strongly Correlated Electrons · Physics 2023-05-26 Manuel I. Díaz , Jong E. Han , Camille Aron

We analyze the unanalytical structure of metal-insulator transition (MIT) in infinite dimensions. By introducing a simple transformation into the dynamical mean-field equation of Hubbard model, a multiple-valued structure in Green's…

Strongly Correlated Electrons · Physics 2009-11-07 Ning-Hua Tong , Shun-Qing Shen , Fu-Cho Pu

We investigate the evolution of the heavy fermion ground state under application of a strong external magnetic field. We present a richer version of the usual hybridization mean field theory that allows for hybridization in both the singlet…

Strongly Correlated Electrons · Physics 2008-04-01 S. Viola Kusminskiy , K. S. D. Beach , A. H. Castro Neto , David K. Campbell

Pressure-induced insulator-to-metal transition (IMT) has been studied in the van der Waals compound iron thiophosphate (FePS3) using first-principles calculations within the periodic linear combination of atomic orbitals method with hybrid…

Materials Science · Physics 2020-04-27 R. A. Evarestov , A. Kuzmin

There has been a recent surge of interest in UTe$_2$ due to its unconventional magnetic field (H) reinforced spin-triplet superconducting phases persisting at fields far above the simple Pauli limit for H $\parallel$ [010]. Magnetic fields…

Synchrotron x-ray diffraction experiments were performed on BaFe$_2$As$_2$ and Sr(Fe$_{1-x}$Co$_{x}$)$_2$As$_2$ single crystals as a function of temperature and applied magnetic field along the tetragonal $[1 \bar{1} 0]$ direction,…

Superconductivity · Physics 2018-07-02 U. F. Kaneko , C. B. R. Jesus , M. E. Saleta , P. G. Pagliuso , R. R. Urbano , E. Granado

We determine the electronic structure and phase stability of paramagnetic V$_2$O$_3$ at the Mott-Hubbard metal-insulator phase transition, by employing a combination of an ab initio method for calculating band structures with dynamical…

Strongly Correlated Electrons · Physics 2015-06-11 I. Leonov , V. I. Anisimov , D. Vollhardt

The effect of pressure on the B--T phase diagram of $\alpha$-(BEDT-TTF)$_2$KHg(SCN)$_4$ is studied. The measured phase lines can be well described by a recent model of a charge-density wave system with varying nesting conditions. A…

Strongly Correlated Electrons · Physics 2009-11-07 D. Andres , M. V. Kartsovnik , W. Biberacher , H. Weiss , E. Balthes , H. Müller , N. Kushch

In the effective Ising spin-1/2 antiferromagnetic chain system BaCo$_2$V$_2$O$_8, the magnetic-field influence is highly anisotropic. For magnetic fields along the easy axis $c$, the N\'{e}el order is strongly suppressed already for low…

Strongly Correlated Electrons · Physics 2015-06-15 S. K. Niesen , G. Kolland , M. Seher , O. Breunig , M. Valldor , M. Braden , B. Grenier , T. Lorenz

We utilize a glass-like structural transition in order to induce a Mott metal-insulator transition in the quasi-two-dimensional organic charge-transfer salt $\kappa$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Br. In this material, the terminal ethylene…

Strongly Correlated Electrons · Physics 2014-12-19 B. Hartmann , J. Müller , T. Sasaki

We incorporate single crystal Fe$_3$O$_4$ thin films into a gated device structure and demonstrate the ability to control the Verwey transition with static electric fields. The Verwey transition temperature ($T_V$) increases for both…

Strongly Correlated Electrons · Physics 2015-06-04 Jared J. I. Wong , Adrian G. Swartz , Renjing Zheng , Wei Han , Roland K. Kawakami

We report the observation of a parallel magnetic field induced metal-insulator transition (MIT) in a high-mobility two-dimensional electron gas (2DEG) for which spin and localization physics most likely play no major role. The high-mobility…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 Xiaoqing Zhou , B. Schmidt , C. Proust , G. Gervais , L. N. Pfeiffer , K. W. West , S. Das Sarma

We report electrical transport, skin depth, and magnetocaloric measurements in the tau-series of organic conductors at very high magnetic fields. Above 36 T these materials show a magnetic field induced first order phase transition from a…

Condensed Matter · Physics 2009-11-07 J. S. Brooks , D. Graf , E. S. Choi , L. Balicas , K. Storr , C. H. Mielke , G. C. Papavassiliou