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The PHENIX experiment at the Relativistic Heavy Ion Collider explores the spin structure of the proton in polarized p+p collisions at center-of-mass energies up to 500 GeV. Tremendous experimental and theoretical progress has been made…

High Energy Physics - Experiment · Physics 2019-08-13 Feng Wei

Magnetic bilayers consisting of an epitaxially grown ferrimagnetic insulator and a heavy metal layer are attractive for spintronic application because of the opportunity for electric control and read-out of spin textures via spin orbit…

A quantum theory of the spin-dependent scattering of semiconductor electrons by a Schottky barrier at an interface with a ferromagnet is presented. The reflection of unpolarized non-equilibrium carriers produces spontaneous…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. P. McGuire , C. Ciuti , L. J. Sham

Magnetic Josephson junctions (MJJs) have emerged as a prominent playground to explore the interplay between superconductivity and ferromagnetism. A series of fascinating experiments have revealed striking phenomena at the…

We describe measurements of the uniaxial magnetic anisotropy and spin-flop rotation of the N\'eel vector in antiferromagnetic CuMnAs thin films using neutron diffraction. The suppression of the magnetic (100) peak under magnetic fields is…

We report on our theoretical study of the inverse TMR effect in the spin polarized transport through a narrow channel. In the weak tunneling limit, we find the ordinary positive TMR. The TMR changes its sign as the transmission probability…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Tae-Suk Kim

The Palomar Fiber Nuller (PFN) is a rotating-baseline nulling interferometer that enables high-accuracy near-infrared (NIR) nulling observations with full azimuth coverage. To achieve NIR null-depth accuracies of several x 10-4, the PFN…

Instrumentation and Methods for Astrophysics · Physics 2019-09-25 Eugene Serabyn , Bertrand Mennesson , Stefan Martin , Kurt Liewer , Jonas Kühn

Polar Kerr effect in the spin-triplet superconductor Sr2RuO4 was measured with high precision using a Sagnac interferometer with a zero-area Sagnac loop. We observed non-zero Kerr rotations as big as 65 nanorad appearing below Tc in large…

Superconductivity · Physics 2007-05-23 Jing Xia , Maeno Yoshiteru , Peter T. Beyersdorf , M. M. Fejer , Aharon Kapitulnik

In this letter we report a direct observation of a magnetic proximity effect in an amorphous thin film exchange-spring magnet by the use of neutron reflectometry. The exchange-spring magnet is a trilayer consisting of two ferromagnetic…

Materials Science · Physics 2020-10-14 A. J. Qviller , F. Magnus , B. J. Kirby , B. Hjörvarsson , C. Frommen , B. C. Hauback

In this work, we present an experimental study of spin mediated enhanced negative magnetoresistance in Ni80Fe20 (50 nm)/p-Si (350 nm) bilayer. The resistance measurement shows a reduction of ~2.5% for the bilayer specimen as compared to…

Mesoscale and Nanoscale Physics · Physics 2017-05-08 Paul C Lou , Sandeep Kumar

The recent development of superconducting spintronics has revealed the spin-triplet superconducting proximity effect from a spin-singlet superconductor into a spin-polarized normal metal. In addition recently superconducting junctions using…

Mesoscale and Nanoscale Physics · Physics 2023-09-25 Sadashige Matsuo , Kento Ueda , Shoji Baba , Hiroshi Kamata , Mizuki Tateno , Javad Shabani , Christopher J. Palmstrøm , Seigo Tarucha

We report an investigation of the structural and electronic properties of hybrid superconductor/ferromagnet (S/F) bilayers of composition Nb/Cu$_{60}$Ni$_{40}$ prepared by magnetron sputtering. X-ray and neutron reflectometry show that both…

Strongly Correlated Electrons · Physics 2015-12-07 Yu. Khaydukov , R. Morari , O. Soltwedel , T. Keller , G. Christiani , G. Logvenov , M. Kupriyanov , A. Sidorenko , B. Keimer

The difference in the density of states for up- and down-spin electrons in a ferromagnet (F) results in spin-dependent scattering of electrons at a ferromagnet / nonmagnetic (F/N) interface. In a F/N/F spin-valve, this causes a…

Superconductivity · Physics 2022-01-07 B. Stoddart-Stones , X. Montiel , M. G. Blamire , J. W. A. Robinson

Spin-split antiferromagnets have significance for antiferromagnetic (AFM) spintronics due to their momentum dependent spin polarization which can be exploited for the control and detection of the AFM order parameter. Here, we explore the…

Materials Science · Physics 2025-03-14 Himanshu Mavani , Kai Huang , Kartik Samanta , Evgeny Y. Tsymbal

In F/S/F trilayers where the magnetization directions of the F layers can be controlled separately, it has theoretically been predicted that the antiparallel (AP) configuration can have a higher superconducting transition temperature T_c…

Superconductivity · Physics 2009-11-11 A. Yu. Rusanov , S. Habraken , J. Aarts

We reveal that three-dimensional multi-orbital topological superconductivity can be identified by a bulk measurement, i.e., the temperature dependence of nuclear magnetic relaxation (NMR) rates. Below a critical temperature $T_{\rm c}$, the…

Superconductivity · Physics 2015-11-12 Yuki Nagai , Yukihiro Ota , Masahiko Machida

We present a theory of the imprinting of the electron spin coherence and population in an n-doped semiconductor which forms a junction with a ferromagnet. The reflection of non-equilibrium semiconductor electrons at the interface provides a…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 C. Ciuti , J. P. McGuire , L. J. Sham

A strong mutual influence of superconductors (S) and ferromagnetic (F) conductors in hybrid F/S (Ni/Al) nanostructures is observed. The magnitude of a proximity-induced conductance on the F-side is more than two orders larger than that…

Superconductivity · Physics 2009-10-31 V. T. Petrashov , I. A. Sosnin , I. Cox , A. Parsons , C. Troadec

Transverse single-spin asymmetries $A_{\textrm{N}}$ of forward neutrons at pseudorapidities larger than 6 had only been studied in the transverse momentum range of $p_{\textrm{T}} < 0.4$ GeV/$c$. The RHICf Collaboration has extended the…

The large values of the transverse single spin asymmetry, A_N, seen in forward pi0 production from polarized proton collisions have stimulated important questions and have been studied in QCD based transverse spin models. We report the…

Nuclear Experiment · Physics 2009-05-19 Steven Heppelmann , for STAR collaboration