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Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2 (2020)
Journal Article
Mogunov, I. A., Lysenko, S., Fedianin, A. E., Fernández, F. E., Rúa, A., Kent, A. J., …Kalashnikova, A. M. (2020). Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2. Nature Communications, 11(1), Article 1690. https://doi.org/10.1038/s41467-020-15372-z

Picosecond strain pulses are a versatile tool for investigation of mechanical properties of meso-and nano-scale objects with high temporal and spatial resolutions. Generation of such pulses is traditionally realized via ultrafast laser excitation of... Read More about Large non-thermal contribution to picosecond strain pulse generation using the photo-induced phase transition in VO2.

Deterministic Magnetization Switching Using Lateral Spin–Orbit Torque (2020)
Journal Article
Cao, Y., Sheng, Y., Edmonds, K. W., Ji, Y., Zheng, H., & Wang, K. (2020). Deterministic Magnetization Switching Using Lateral Spin–Orbit Torque. Advanced Materials, 32(16), Article 1907929. https://doi.org/10.1002/adma.201907929

Current-induced magnetization switching by spin–orbit torque (SOT) holds considerable promise for next generation ultralow-power memory and logic applications. In most cases, generation of spin–orbit torques has relied on an external injection of out... Read More about Deterministic Magnetization Switching Using Lateral Spin–Orbit Torque.

High Responsivity and Wavelength Selectivity of GaN?Based Resonant Cavity Photodiodes (2020)
Journal Article
Li, J., Yang, C., Liu, L., Cao, H., Lin, S., Xi, X., …Zhao, L. (2020). High Responsivity and Wavelength Selectivity of GaN‐Based Resonant Cavity Photodiodes. Advanced Optical Materials, 8(7), Article 1901276. https://doi.org/10.1002/adom.201901276

The implementation of blue-light photodiodes based on InGaN in emerging technologies, such as free-space visible light communication (VLC), requires transformative approaches towards enhanced performance, miniaturization, and integration beyond curre... Read More about High Responsivity and Wavelength Selectivity of GaN?Based Resonant Cavity Photodiodes.

Long-term NIR Variability in the UKIDSS Ultra Deep Survey: a new probe of AGN activity at high redshift (2020)
Journal Article
Elmer, E., Almaini, O., Merrifield, M., Hartley, W. G., Maltby, D. T., Lawrence, A., …Hirst, P. (2020). Long-term NIR Variability in the UKIDSS Ultra Deep Survey: a new probe of AGN activity at high redshift. Monthly Notices of the Royal Astronomical Society, 493(2), 3026-3035. https://doi.org/10.1093/mnras/staa381

We present the first attempt to select active galactic nuclei (AGN) using long-Term near-infrared (NIR) variability. By analysing the K-band light curves of all the galaxies in the UKIRT Infrared Deep Sky Survey (UKIDSS) Ultra Deep Survey, the deepes... Read More about Long-term NIR Variability in the UKIDSS Ultra Deep Survey: a new probe of AGN activity at high redshift.

Astrophysical Limits on Very Light Axion-like Particles from Chandra Grating Spectroscopy of NGC 1275 (2020)
Journal Article
Reynolds, C. S., Marsh, M. C. D., Russell, H. R., Fabian, A. C., Smith, R., Tombesi, F., & Veilleux, S. (2020). Astrophysical Limits on Very Light Axion-like Particles from Chandra Grating Spectroscopy of NGC 1275. Astrophysical Journal, 890(1), Article 59. https://doi.org/10.3847/1538-4357/ab6a0c

Axions/axion-like particles (ALPs) are a well-motivated extension of the Standard Model and are generic within String Theory. The X-ray transparency of the intracluster medium (ICM) in galaxy clusters is a powerful probe of light ALPs (with mass < 10... Read More about Astrophysical Limits on Very Light Axion-like Particles from Chandra Grating Spectroscopy of NGC 1275.

Controlling the dynamical scale factor in a trapped atom Sagnac interferometer (2020)
Journal Article
Zhou, Y., Lesanovsky, I., Fernholz, T., & Li, W. (2020). Controlling the dynamical scale factor in a trapped atom Sagnac interferometer. Physical Review A, 101(1), Article 012517. https://doi.org/10.1103/physreva.101.012517

Sagnac interferometers with massive particles promise unique advantages in achieving high-precision measurements of rotation rates over their optical counterparts. Recent proposals and experiments are exploring nonballistic Sagnac interferometers whe... Read More about Controlling the dynamical scale factor in a trapped atom Sagnac interferometer.