Research Repository

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Tunnel spectroscopy of localised electronic states in hexagonal boron nitride (2018)
Journal Article
Greenaway, M., Vdovin, E., Ghazaryan, D., Misra, A., Mischenko, A., Cao, Y., …Eaves, L. (2018). Tunnel spectroscopy of localised electronic states in hexagonal boron nitride. Communications Physics, 1, doi:10.1038/s42005-018-0097-1

Hexagonal boron nitride is a large band gap layered crystal, frequently incorporated in van der Waals heterostructures as an insulating or tunnel barrier. Localised states with energies within its band gap can emit visible light, relevant to applicat... Read More

Enhancing optoelectronic properties of SiC-grown graphene by a surface layer of colloidal quantum dots (2017)
Journal Article
Makarovsky, O., Turyanska, L., Mori, N., Greenaway, M., Eaves, L., Patanè, A., …Yakimova, R. (in press). Enhancing optoelectronic properties of SiC-grown graphene by a surface layer of colloidal quantum dots. 2D Materials, 4(3), doi:10.1088/2053-1583/aa76bb. ISSN 2053-1583

We report a simultaneous increase of carrier concentration, mobility and photoresponsivity when SiC-grown graphene is decorated with a surface layer of colloidal PbS quantum dots, which act as electron donors. The charge on the ionised dots is spatia... Read More

On the potential of a new generation of magnetometers for MEG: a beamformer simulation study (2016)
Journal Article
Boto, E., Bowtell, R. W., Kruger, P., Fromhold, T. M., Morris, P. G., Meyer, S. S., …Brookes, M. J. (2016). On the potential of a new generation of magnetometers for MEG: a beamformer simulation study. PLoS ONE, 11(8), doi:10.1371/journal.pone.0157655. ISSN 1932-6203

Magnetoencephalography (MEG) is a sophisticated tool which yields rich information on the spatial, spectral and temporal signatures of human brain function. Despite unique potential, MEG is limited by a low signal-to-noise ratio (SNR) which is caused... Read More

Sub-terahertz amplification in a semiconductor superlattice with moving charge domains (2015)
Journal Article
Makarov, V., Hramov, A., Koronovskii, A., Alekseev, K., Maximenko, V., Greenaway, M., …Balanov, A. (2015). Sub-terahertz amplification in a semiconductor superlattice with moving charge domains. Applied Physics Letters, 106(4), doi:10.1063/1.4906531

We theoretically study the high-frequency response of charge domains traveling through a strongly coupled semiconductor superlattice with an applied harmonic electromagnetic signal. Our calculations show that the superlattice alone can amplify signal... Read More

iSense: a technology platform for cold atom based quantum technologies (2014)
Conference Proceeding
Bongs, K., Malcolm, J., Ramelloo, C., Zhu, L., Boyer, V., Valenzuela, T., …Wicht, A. (2014). iSense: a technology platform for cold atom based quantum technologies. In Research in Optical Sciencesdoi:10.1364/QIM.2014.QTu3B.1

A breakthrough in cold atom quantum technology is hindered by a bottleneck in the supporting technologies. We discuss a cold atom technology platform developed within the European iSense project, aiming at a gravimeter as demonstrator.