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- University College LondonGB277 papers
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23 papers · 1 filter
Dispersive Magnetic and Electronic Excitations in Iridate Perovskites Probed with Oxygen -Edge Resonant Inelastic X-ray Scattering
Xingye Lu, Paul Olalde-Velasco, Yaobo Huang +11
Resonant inelastic X-ray scattering (RIXS) experiments performed at the oxygen- edge on the iridate perovskites {\SIOS} and {\SION} reveal a sequence of well-defined dispersive…
Atomic layer doping of Mn magnetic impurities from surface chains at a Ge/Si hetero-interface
Koichi Murata, Christopher Kirkham, Satoshi Tsubomatsu +7
We realize Mn -doping into Si and Si/Ge interfaces using Mn atomic chains on Si(001). Highly sensitive X-ray absorption fine structure techniques reveal that encapsulation at ro…
Doping-induced quantum cross-over in ErTiSnO
Masae Shirai, Rafael S. Freitas, Jorge Lago +3
We present the results of the investigation of magnetic properties of the ErTiSnO series. For small doping values the ordering temperature decreases linearly wi…
Transverse acoustic phonon anomalies at intermediate wavevectors in MgVO
T. Weber, B. Roessli, C. Stock +7
Magnetic spinels (with chemical formula O, with a 3 transition metal ion) that also have an orbital degeneracy are Jahn-Teller active and hence possess a coupl…
Little-Parks oscillations with half-quantum fluxoid features in Sr2RuO4 micro rings
Yuuki Yasui, Kaveh Lahabi, Muhammad Shahbaz Anwar +5
In a micro ring of a superconductor with a spin-triplet equal-spin pairing state, a fluxoid, a combined object of magnetic flux and circulating supercurrent, can penetrate as half-…
The three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned ARPES measurements
Matthew D. Watson, Saicharan Aswartham, Luke C. Rhodes +6
We report a comprehensive ARPES study of NaFeAs, a prototypical parent compound of the Fe-based superconductors. By mechanically detwinning the samples, we show that in the nematic…