Thin film quantum materials

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Robust Kagome Electronic Structure in Topological Quantum Magnets XMn6Sn6 (X = Dy, Tb, Gd, Y)

(2022)

Authors:

X Gu, C Chen, WS Wei, JY Liu, X Du, D Pei, JS Zhou, RZ Xu, ZX Yin, WX Zhao, YD Li, C Jozwiak, A Bostwick, E Rotenberg, D Backes, LSI Veiga, S Dhesi, T Hesjedal, G van der Laan, HF Du, WJ Jiang, YP Qi, G Li, WJ Shi, ZK Liu, YL Chen, LX Yang
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Effect of Chiral Damping on the dynamics of chiral domain walls and skyrmions

Nature Communications Springer Nature 13:1 (2022) 1192

Authors:

CK Safeer, Mohamed-Ali Nsibi, Jayshankar Nath, Mihai Sebastian Gabor, Haozhe Yang, Isabelle Joumard, Stephane Auffret, Gilles Gaudin, Ioan-Mihai Miron
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Reliability of spin-to-charge conversion measurements in graphene-based lateral spin valves

2D Materials IOP Publishing 9:1 (2022) 015024

Authors:

CK Safeer, Franz Herling, Won Young Choi, Nerea Ontoso, Josep Ingla-Aynés, Luis E Hueso, Fèlix Casanova
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Topological Dirac semi-metals as novel, optically-switchable, helicity-dependent terahertz sources

2022 47TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ 2022) 2022-August (2022)

Authors:

Jessica L Boland, Chelsea Q Xia, Djamshid A Damry, Piet Schonherr, Dharmalingam Prabhakaran, Laura M Herz, Thorsten Hesjedal, Michael B Johnston

Abstract:

The generation and control of terahertz pulses is vital for realizing the potential of terahertz radiation in several sectors, including 6G communication, security and imaging. In this work, we present the topological Dirac semimetal cadmium arsenide as a novel helicity-dependent terahertz source. We show both broadband (single-cycle) and narrowband (multi-cycle) terahertz pulses upon near-infrared photoexcitation at oblique incidence. By varying the incident angle of the photoexcitation pulse, control of the emission frequency can also be achieved, providing a candidate for a tuneable narrowband terahertz source.
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Effect of Chiral Damping on the dynamics of chiral domain walls and skyrmions

Nature Communications,13,1192 (2022)

Authors:

CK Safeer, Mohamed-Ali Nsibi, Jayshankar Nath, Mihai Sebastian Gabor, Haozhe Yang, Isabelle Joumard, Stephane Auffret, Gilles Gaudin, Ioan-Mihai Miron

Abstract:

Details from ORA