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The charge density wave (CDW) material 1T-TaS$_2$ exhibits a pulse-induced insulator-to-metal transition, which shows promise for next-generation electronics such as memristive memory and neuromorphic hardware. However, the rational design…

Materials Science · Physics 2023-09-13 James L Hart , Saif Siddique , Noah Schnitzer , Stephen D. Funni , Lena F. Kourkoutis , Judy J. Cha

We use the frozen phonon method to calculate the anharmonic potential energy surface and to model the ultrafast ferroelectric polarization reversal in LiNbO3 driven by intense pulses of THz light. Before stable switching of the polarization…

Materials Science · Physics 2023-12-19 R. Tanner Hardy , Conrad Rosenbrock , Gus L. W. Hart , Jeremy A. Johnson

Ti-substituted perovskites, La0.7Sr0.3Mn1-xTixO3, with x between 0 to 0.20, were investigated by neutron diffraction, magnetization, electric resistivity, and magnetoresistance (MR) measurements. All samples show a rhombohedral structure…

Materials Science · Physics 2009-11-11 M. S. Kim , J. B. Yang , Q. Cai , X. D. Zhou , W. J. James , W. B. Yelon , P. E. Parris , D. Buddhikot , S. K. Malik

Developing electronic devices capable of emulating biological functions is essential for advancing brain-inspired computation paradigms such as neuromorphic computing. In recent years, two-dimensional materials have emerged as promising…

We analyze the effect of bichromatic microwave irradiation on the magnetoresistivity of a two dimensional electron system. We follow the model of microwave driven Larmor orbits in a regime where two different microwave lights with different…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jesus Inarrea , Gloria Platero

We report room temperature giant baro-resistance ($\approx$128\%) in $Fe_{49}(Rh_{0.93}Pd_{0.07})_{51}$. With the application of external pressure and magnetic field the temperature range of giant baro-resistance ($\approx$600\% at 5K and…

Strongly Correlated Electrons · Physics 2015-06-22 Pallavi Kushwaha , Pallab Bag , R. Rawat

Voltage-driven 180$^\circ$ magnetization switching without electric current provides the possibility for revolutionizing the spintronics. We demonstrated the voltage-driven charge-mediated 180$^\circ$ magnetization switching at room…

Materials Science · Physics 2017-09-12 Min Yi , Hongbin Zhang , Bai-Xiang Xu

We investigate the electric field induced resistive switching effect and magnetic field induced fraction enlargement on a polycrystalline sample of a colossal magnetoresistive compound displaying intrinsic phase coexistence. Our data show…

Strongly Correlated Electrons · Physics 2009-11-11 M. Quintero , A. G. Leyva , P. Levy

Measurements of average pulse profiles made with a single linear polarization over the range 41-112 MHz are presented for PSR B0950+08. We show that the observed variable structure of the pulse profiles is a result of Faraday sinusoidal…

Astrophysics · Physics 2009-11-10 T. V. Shabanova , Yu. P. Shitov

This paper reports conduction mechanism in a-\sbse over a wide range of temperature (238K to 338K) and frequency (5Hz to 100kHz). The d.c. conductivity measured as a function of temperature shows semiconducting behaviour with activation…

Condensed Matter · Physics 2011-11-22 Sanjeev Gautam , D. K. Shukla , Shelly Jain , N. Goyal

We measured the I(V) and dV/dI(V) characteristics of TiTe2-based point contacts (PCs) from room to helium temperatures. Features indicating the emergence of a charge density wave (CDW) were detected. They represent symmetrical relatively…

Mesoscale and Nanoscale Physics · Physics 2026-05-06 O. E. Kvitnitskaya , L. Harnagea , O. D. Feia , D. V. Efremov , B. Büchner , Yu. G. Naidyuk

Electric field-induced giant resistive switching triggered by insulator-to-metal transition (IMT) is one of the promising approaches for developing a new class of electronics often referred to as Mottronics. Achieving this resistive…

We study correlated switchings of superconducting nanobridge probed with train of current pulses. For pulses with low repetition rate each pulse transits the superconducting bridge to normal state with probability $P$ independent of the…

Superconductivity · Physics 2021-07-21 Maciej Zgirski , Marek Foltyn , Alexander Savin , Konrad Norowski

It is shown that with increasing magnitude of current (I), resistivity of Sm0.6Sr0.4MnO3 transforms from a smooth to a discontinuous insulator-metal transition which is also accompanied by an abrupt decrease in temperature of the sample. We…

Materials Science · Physics 2009-12-01 A. Rebello , R. Mahendiran

The electrical conductivity and Raman spectroscopy measurements have been performed on MoS$_2$ at high pressures up to 90 GPa and variable temperatures down to 5 K. We find that the temperature dependence of the resistance in a metallic…

Materials Science · Physics 2018-06-27 Zi-Yu Cao , Jia-Wei Hu , Alexander F. Goncharov , Xiao-Jia Chen

Since the beginnings of the electronic age, a quest for ever faster and smaller switches has been initiated, since this element is ubiquitous and foundational in any electronic circuit to regulate the flow of current. Mott insulators are…

We characterized a sample of metal-oxide resistors and measured their breakdown voltage in liquid argon by applying high voltage (HV) pulses over a 3 second period. This test mimics the situation in a HV-divider chain when a breakdown…

A source of ultrashort pulses of light in the 2 {\mu}m region was constructed using supercontinuum broadening from an erbium mode-locked laser. The output spectrum spanned 1000 nm to 2200 nm with an average power of 250 mW. A pulse width of…

Optics · Physics 2017-07-26 Andrew Klose , Gabriel Ycas , Daniel L. Maser , Scott A. Diddams

Some correlated materials display an insulator-to-metal transition as the temperature is increased. In most cases this transition can also be induced electrically, resulting in volatile resistive switching due to the formation of a…

The sheet resistance Rs of Ar+ irradiated SrTiO3 in patterns with a length scale of several microns increases significantly below 40 K in connection with driving currents exceeding a certain threshold. The initial lower Rs is recovered upon…