Selected publications (2016 onwards)
A skyrmion switch (September 28th, 2017)
Nanoscale magnetic skyrmions are good candidates for data manipulation and storage in spintronic applications (logic and/or memory). M. Schott et al. have recently shown that a gate voltage can nucleate or annihilate skyrmions. This proof of concept of a skyrmion switch paves the way towards skyrmion-based applications. Skyrmions are chiral magnetic bubbles: their magnetic texture, […]
Read moreBook – Introduction to Random-Access Memory (September 01st, 2017)
B. Dieny, R. B. Goldfarb, K.-J. Lee (Eds), IEEE Press, Wiley (2017). With chapter authorship from Spintec: L. Buda-Prejbeanu, L. Prejbeanu, B. Diény. DOI: 10.1002/9781119079415 Magnetic random-access memory (MRAM) is poised to replace traditional computer memory based on complementary metal-oxide semiconductors (CMOS). MRAM will surpass all other types of memory devices in terms of nonvolatility, […]
Read moreElectrical detection of magnetic domain walls by inverse and direct spin Hall effect (August 28th, 2017)
Spin orbit torques allow to move efficiently DW in tracks made of ferromagnetic/spin Hall effect bilayer. Domain wall (DW) detection is then of great importance. In this letter, we demonstrate a detection method, based on the ability for a ferromagnetic nanowire, in which a DW is pinned, to inject or detect a pure spin current. […]
Read moreEvidence for spin to charge conversion in GeTe(111), among most read 2016 papers of APL Mater. (August 28th, 2017)
GeTe has been predicted to be the father compound of a new class of multifunctional materials: ferroelectric Rashba semiconductors. In that sense, they are expected to display a coupling between spin-dependent k-splitting and ferroelectricity, thus allowing an electrical control of spin-to-charge conversion phenomena in spintronics. This paper reported the epitaxial growth of Fe/GeTe(111) heterostructures by […]
Read moreSpin-Hall Voltage over a Large Length Scale in Bulk Germanium (July 20th, 2017)
Germanium is one of the most appealing candidate for spintronic applications, thanks to its compatibility with the Si platform, the long electron spin lifetime and the optical properties matching the conventional telecommunication window. Electrical spin injection schemes have always been exploited to generate spin accumulations and pure spin currents in bulk Ge. Here, we use […]
Read moreReview – Perpendicular magnetic anisotropy at transition metal/oxide interfaces and applications (June 28th, 2017)
B. Dieny and M. Chshiev, Rev. Mod. Phys. 89, 025008 (2017). Spin electronics is a rapidly expanding field stimulated by a strong synergy between breakthrough basic research discoveries and industrial applications in the fields of magnetic recording, magnetic field sensors, nonvolatile memories [magnetic random access memories (MRAM) and especially spin-transfer-torque MRAM (STT-MRAM)]. In addition to […]
Read moreTailoring magnetic insulator proximity effects in graphene: first-principles calculations (June 07th, 2017)
Advancing spintronic devices requires using novel 2D materials including graphene with featured properties. In particular, a significant effort has been focused on injecting spins and inducing magnetism in graphene giving rise to emerging field of graphene spintronics. It is demonstrated that robust spin polarization can be induced in graphene via proximity with magnetic insulators including […]
Read moreNanotweezers and their remote actuation by magnetic fields (May 23rd, 2017)
We have developed arrays of innovative magnetic nanotweezers or “nanojaws” on silicon wafers, by a top-down approach using the fabrication techniques of microelectronics. The mechanical manipulation of micro- and nanometric objects relies on constantly evolving techniques, which are of great interest to the life sciences and biotechnologies. Numerous biomedical studies, either fundamental or applied to […]
Read moreReview – Three-dimensional nanomagnetism (April 20th, 2017)
Amalio Fernandez-Pacheco, Robert Streubel, Olivier Fruchart, Riccardo Hertel, Peter Fischer, Russell P. Cowburn, Nature Comm. 8, 15756 (2017) Magnetic nanostructures are being developed for use in many aspects of our daily life, spanning areas such as data storage, sensing and biomedicine. Whereas patterned nanomagnets are traditionally two-dimensional planar structures, recent work is expanding nanomagnetism into […]
Read moreGiant and tunable spin-charge conversion at oxide interfaces (April 14th, 2017)
At the interface between the strontium titanate and the lanthanide aluminate forms a 2 dimensional electron system. By using a dynamical spin injection technique, we were able to demonstrate a record conversion yield between spin and charge current in this system, moreover that is tunable in amplitude and sign by an electrostatic gate, a premiere. […]
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