DataVXACS NanoPaper
journal article·2017-06-27

Superconducting Ferromagnetic Nanodiamond

Gufei Zhang, Tomas Samuely, Zheng Xu, Johanna K. Jochum, Alexander Volodin, Shengqiang Zhou, Paul W. May, Oleksandr Onufriienko, Jozef Kačmarčík, Julian A. Steele, Jun Li, Johan Vanacken, Jiri Vacík, Pavol Szabó, Haifeng Yuan, Maarten B. J. Roeffaers, Dorin Cerbu, Peter Samuely, Johan Hofkens, Victor V. Moshchalkov

ACS Nano· Volume 11· Issue 6
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Source abstract

Abstract

Superconductivity and ferromagnetism are two mutually antagonistic states in condensed matter. Research on the interplay between these two competing orderings sheds light not only on the cause of various quantum phenomena in strongly correlated systems but also on the general mechanism of superconductivity. Here we report on the observation of the electronic entanglement between superconducting and ferromagnetic states in hydrogenated boron-doped nanodiamond films, which have a superconducting transition temperature T c ∼ 3 K and a Curie temperature T Curie > 400 K. In spite of the high T Curie, our nanodiamond films demonstrate a decrease in the temperature dependence of magnetization below 100 K, in correspondence to an increase in the temperature dependence of resistivity. These anomalous magnetic and electrical transport properties reveal the presence of an intriguing precursor phase, in which spin fluctuations intervene as a result of the interplay between the two antagonistic states. Furthermore, the observations of high-temperature ferromagnetism, giant positive magnetoresistance, and anomalous Hall effect bring attention to the potential applications of our superconducting ferromagnetic nanodiamond films in magnetoelectronics, spintronics, and magnetic field sensing.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Diamond and Carbon-based Materials Research · Physics of Superconductivity and Magnetism · Electronic and Structural Properties of Oxides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Centre of Low Temperature Physics, Institute of Experimental Physics, Slovak Academy of Sciences and Faculty of Science, P. J. Safarik University, 04001 Kosice, Slovakia

School of Electrical and Computer Engineering, University of California, Davis, California 95616, United States

Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany

School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom

Research Institute of Superconductor Electronics, Nanjing University, 210093 Nanjing, China

Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 25068 Husinec-Rez, Czech Republic

Funding

Engineering and Physical Sciences Research Council · Helmholtz-Gemeinschaft · Vedeck? Grantov? Agent?ra M?VVa? SR a SAV · European Regional Development Fund · Grantov? Agentura Cesk? Republiky · Vlaamse Overheid · Fonds Wetenschappelijk Onderzoek · H2020 European Research Council · Agent?ra na Podporu V?skumu a V?voja · Onderzoeksfonds, KU Leuven · U. S. Steel Ko?ice, s.r.o. · Herculesstichting, Vlaamse Overheid

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