English
Related papers

Related papers: Spin-filtering in superconducting junction with th…

200 papers

Nonvolatile spintronics-based devices that utilize electron spin both to store and transport information face a great challenge when scaled to nano dimensions due to loss of thermal stability and stray field induced disturbance in closely…

Mesoscale and Nanoscale Physics · Physics 2023-09-28 Kutay Akin , Hasan Piskin , Ege Selvi , Emre Demircanli , Sevval Ari , Mohammad Hassan Ramezan zadeh , Bayram Kocaman , Ozhan Ozatay

We describe the relation between spin fluctuations and superconductivity in a highly-ordered sample of YBaCu3O6.5 using both polarized and unpolarized neutron inelastic scattering. The spin susceptibility in the superconducting phase…

Superconductivity · Physics 2009-11-10 C. Stock , W. J. L. Buyers , R. Liang , D. Peets , Z. Tun , D. Bonn , W. N. Hardy , R. J. Birgeneau

In this Chapter we review our latest results on magnetic (AC susceptibility) and transport (resistivity) properties of Pr1.85Ce0.15CuO4 (PCCO) and Sm1.85Ce0.15CuO4 (SCCO) thin films grown by pulsed laser deposition technique. Three main…

Superconductivity · Physics 2008-02-18 S. Sergeenkov , A. J. C. Lanfredi , F. M. Araujo-Moreira

Spin-polarized transport through a band-gap-matched ZnSe/Zn_{1-x}Mn_{x} Se/ZnSe/Zn_{1-x}Mn_{x}Se/ZnSe multilayer structure is investigated. The resonant transport is shown to occur at different energies for different spins owing to the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Zhen-Gang Zhu , Gang Su

We report a modulation of the in-plane magnetotransport in artificial manganite superlattice (SL) [(NdMnO3)n /(SrMnO3)n /(LaMnO3)n]m by varying the layer thickness n while keeping the total thickness of the structure constant. Charge…

Strongly Correlated Electrons · Physics 2015-01-20 K. Rogdakis , Z. Viskadourakis , A. P. Petrovic , E. Choi , J. Lee , C. Panagopoulos

After more than a decade of extensive research on the magnetic order triggered by lattice defects in a wide range of nominally non-magnetic materials, we report its application in a spintronic device. This device is based on a spin-filter…

Mesoscale and Nanoscale Physics · Physics 2017-07-10 L. Botsch , I. Lorite , Y. Kumar , P. Esquinazi , T. Michalsky , J. Zajadacz , K. Zimmer

Fabricating room-temperature ferromagnetic insulators, which are crucial candidates for next-generation dissipation-free quantum and spintronic devices, remains a significant challenge. In this Letter, we report on the epitaxial synthesis…

Strongly Correlated Electrons · Physics 2026-02-27 Yuhao Hong , Shilin Hu , Ziyue Shen , Chao Deng , Xiaodong Zhang , Lei Wang , Long Wei , Qinghua Zhang , Lingfei Wang , Liang Si , Yulin Gan , Kai Chen , Zhaoliang Liao

Electronic phases with symmetry properties matching those of conventional liquid crystals have recently been discovered in transport experiments on semiconductor heterostructures and metal oxides at milli-Kelvin temperatures. We report the…

Strongly Correlated Electrons · Physics 2008-07-14 V. Hinkov , D. Haug , B. Fauque , P. Bourges , Y. Sidis , A. Ivanov , C. Bernhard , C. T. Lin , B. Keimer

Thin films of Sm0.5Ca0.5MnO3 manganites with charge ordering (CO) properties and colossal magnetoresistance were synthesized by pulsed laser deposition technique on (100)-SrTiO3 and (100)-LaAlO3 substrates. We first compare the structural…

Materials Science · Physics 2015-06-25 E. Rauwel , W. Prellier , B. Mercey , S. de Brion , G. Chouteau

Long-distance transport of spin information in insulators without long-range magnetic order has been recently reported. Here, we perform a complete characterization of amorphous Y$_3$Fe$_5$O$_{12}$ (a-YIG) films grown on top of SiO$_2$. We…

The ferroelectric phase of the multiferroic hexagonal manganites (h-ReMnO3) has been reported to undergo a series of magnetic transitions involving long-range ordering/reorientation of 4fRe3+ and/or 3dMn3+ spins below room temperature.…

We report measurements of the thermoelectric power and electrical resistivity of superlattices composed of the high-temperature superconductor YBa2Cu3O(7-delta) (YBCO) and the metallic ferromagnet La(2/3)Ca(1/3)MnO3 (LCMO) with individual…

Strongly Correlated Electrons · Physics 2015-06-11 S. Heinze , H. -U. Habermeier , G. Cristiani , S. Blanco Canosa , M. Le Tacon , B. Keimer

We discuss magnetotransport in a low density electron gas coupled to spin fluctuations near and above a ferromagnetic transition. Provided the density is low enough ($n \lesssim 1/\xi^{3}(T)$, with $\xi(T)$ the ferromagnetic correlation…

Materials Science · Physics 2009-10-30 Pinaki Majumdar , Peter Littlewood

Superlattices of correlated oxides have been used to explore interfacial effects and to achieve additional control over the physical properties of individual constituents. In this work, we present a first-principles perspective of the…

Strongly Correlated Electrons · Physics 2024-02-02 V. A. M. Lima , M. C. O. Aguiar , N. C. Plumb , M. Radovic , W. H. Brito

Ferromagnetism and electrical insulation are often at odds, signifying an inherent trade off. The simultaneous optimization of both in one material, essential for advancing spintronics and topological electronics, necessitates the…

Transmission of information using the spin of the electron as well as its charge requires a high degree of spin polarization at surfaces. At surfaces however this degree of polarization can be quenched by competing interactions. Using a…

Strongly Correlated Electrons · Physics 2015-06-25 J. W. Freeland , K. E. Gray , L. Ozyuzer , P. Berghuis , Elvira Badica , J. Kavich , H. Zheng , J. F. Mitchell

The mid-infrared spin-wave spectrum of antiferromagnetic YBa$_2$Cu$_3$O$_{6.0}$\ was determined by infrared transmission and reflection measurements ($\bbox{k} \!\! \parallel $c) at $T\!=\!10\!$~K.\@ Excitation of single magnons of the…

Condensed Matter · Physics 2010-05-24 M. Grüninger , J. Münzel , A. Gaymann , A. Zibold , H. P. Geserich , T. Kopp

The antiferromagnetic - ferromagnetic phase transition in YBaCo2O5.50 and YBaCo2O5.44 cobaltites with different types of oxygen-ion ordering in the [YO0.5/0.44] layers has been studied by neutron powder diffraction. Using the magnetic…

Materials Science · Physics 2007-05-23 D. D. Khalyavin , D. N. Argyriou , U. Amann , A. A. Yaremchenko , V. V. Kharton

LaMnO$_3$ (LMO) thin films epitaxially grown on SrTiO$_3$ (STO) usually exhibit ferromagnetism above a critical layer thickness. We report the use of scanning SQUID microscopy (SSM) to study the suppression of the ferromagnetism in…

Spin electronics (spintronics) exploits the magnetic nature of the electron, and is commercially exploited in the spin valves of disc-drive read heads. There is currently widespread interest in using industrially relevant semiconductors in…