Research News


<span><span><span><span><span><span><span><span>Shedding light on superconducting disorder</span></span></span></span></span></span></span></span>

Researchers at the MPSD and Brookhaven National Laboratory used two-dimensional terahertz spectroscopy (2DTS) in a non-collinear geometry for the first time to isolate specific terahertz nonlinearities in the cuprate superconductor La1.83Sr0.17CuOby their emission direction. Their work has been published in Nature Physics. more

Extremely strong magnetoelectric coupling in NiI<sub>2</sub>

The multiferroic NiI2 has greater magnetoelectric coupling than any known material of its kind, making it a prime candidate for technology advances, an international research team reports in Nature more

Light-induced Meissner effect in YBa<sub>2</sub>Cu<sub>3</sub>O<sub>6.48</sub>

Researchers in the Cavalleri group discover that photo-excited YBa2Cu3O6.48, in addition to featuring near zero resistance, also expels a static magnetic field from its interior. Their work has been published in Nature. more

Turning Ta<sub>2</sub>NiSe<sub>5</sub> into a photonic time crystal

A theory team from the MPSD collaborating with researchers in the United States and Switzerland has explained the key mechanism leading to terahertz amplification in the excitonic insulator candidate Ta2NiSe5. The work has been published in Nature Communications. more

Contradictions of the Kagome metal AV<sub>3</sub>Sb<sub>5</sub>

An investigation of the Kagome metal AV3Sb5 without external perturbations has yielded new insights into this group of materials. The work, now published in Nature Physics, is a crucial step in order to understand the intrinsic electronic ground state of this material.  more

New insights into light-induced ferroelectricity in SrTiO<sub>3</sub>

Measurements of the fluctuations of the atomic positions in SrTiO3 under mid-infrared light yield new insights into the creation of the material’s ferroelectric state. An MPSD research team reports in Nature Materials that the material transforms into a state of permanently ordered electrical dipoles.  more

Illuminating the hidden properties of TNS

Researchers at the University of California San Diego and the MPSD have used an advanced optical technique to learn more about Ta2NiSe5 (TNS), with a broadened range of frequencies. The MPSD’s Theory Group provided DFT calculations for the study. more

Phonon-enhanced nonlinearities in layered materials

New study published in Nature Communications by members of the Theory Department sheds light on the optical nonlinearities induced and amplified by strong phonon resonances within hexagonal boron nitride (hBN). more

Photo-induced superconductivity on a chip 

Researchers at the MPSD have shown that a previously demonstrated ability to turn on superconductivity with a laser beam can be integrated on a chip, opening up a route toward opto-electronic applications.  more

Cavity vacuum changes magnetic state of α-RuCl<sub>3</sub>

Researchers in Germany and the USA have produced the first theoretical demonstration that the magnetic state of an atomically thin material, α-RuCl3, can be controlled solely by placing it into an optical cavity. more

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