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Nitrogen vacancy (NV) color centers in diamond are a leading modality for both superresolution optical imaging and nanoscale magnetic field sensing. In this work, we solve the remaining key challenge of performing optical magnetic imaging…

Element-specific spectroscopies using synchrotron-radiation can provide unique insights into materials properties. The recently developed technique of X-ray detected ferromagnetic resonance (XFMR) allows studying the magnetization dynamics…

材料科学 · 物理学 2023-05-17 Gerrit van der Laan , Thorsten Hesjedal

A first principles approach, based on the real space multiple scattering Green's function method, is presented for spin- and angle-resolved resonant photoemission from magnetic surfaces. It is applied to the Fe(010) valence band…

强关联电子 · 物理学 2015-06-17 Fabiana Da Pieve , Peter Krueger

We report on the polarized neutron reflectometry investigation of monolayer of magnetic iron oxide nanoparticles assembled by the Langmuir-Schaefer method. After deposition onto a solid substrate the polarized neutron reflectometry…

介观与纳米尺度物理 · 物理学 2019-01-28 V. Ukleev , I. Snigireva , A. Vorobiev

The paper deals with the hyperfine interactions observed on the 57Fe nucleus in multiferroic BiFeO3 by means of the 14.41-keV resonant transition in 57Fe, and for transmission geometry applied to the random powder sample. Spectra were…

材料科学 · 物理学 2016-12-22 A. Pierzga , A. Blachowski , K. Komedera , K. Ruebenbauer , A. Kalvane , R. Bujakiewicz-Koronska

We experimentally demonstrate a simple and robust protocol for the detection of weak radio-frequency magnetic fields using a single electron spin in diamond. Our method relies on spin locking, where the Rabi frequency of the spin is…

量子物理 · 物理学 2013-01-14 M. Loretz , T. Rosskopf , C. L. Degen

In multiferroic TbMn$_2$O$_5$, the behavior of the terbium ions forms a crucial part of the magneto-electric coupling. The result is a magnetically induced reversal of the electric polarization at 2 T. In this article we present the first…

强关联电子 · 物理学 2011-06-27 R. D. Johnson , C. Mazzoli , S. R. Bland , C-H. Du , P. D. Hatton

Using a `standard' NMR spin-echo technique we determined the spin polarization of two-dimensional electrons, confined to GaAs quantum wells, from the hyperfine shift of Ga nuclei in the wells. Concentrating on the temperature and magnetic…

介观与纳米尺度物理 · 物理学 2009-10-31 S. Melinte , N. Freytag , M. Horvatic , C. Berthier , L. P. Levy , V. Bayot , M. Shayegan

We studied the depth dependent magnetization profile of the magnetostrictive Co thin film layer in a PMN-PT (011)/Ta/Co/Ta structure under both zero and nonzero applied electric field using polarized neutron reflectometry. Application of…

介观与纳米尺度物理 · 物理学 2019-04-02 Md Mamun Al-Rashid , Alexander Grutter , Brian Kirby , Jayasimha Atulasimha

We study the dynamics of optically-induced nuclear spin polarization in a fluorine-doped ZnSe epilayer via time-resolved Kerr rotation. The nuclear polarization in the vicinity of a fluorine donor is induced by interaction with coherently…

介观与纳米尺度物理 · 物理学 2016-02-24 F. Heisterkamp , E. Kirstein , A. Greilich , E. A. Zhukov , T. Kazimierczuk , D. R. Yakovlev , A. Pawlis , M. Bayer

We report results of 75As nuclear magnetic resonance (NMR) experiments on a self-flux grown single crystal of BaFe2As2. A first-order antiferromagnetic (AF) transition near 135 K was detected by the splitting of NMR lines, which is…

超导电性 · 物理学 2008-11-10 Kentaro Kitagawa , Naoyuki Katayama , Kenya Ohgushi , Makoto Yoshida , Masashi Takigawa

Uranium beryllium-13 is a heavy fermion system whose anomalous behavior may be explained by its poorly understood internal magnetic structure. Here, uranium beryllium-13's magnetic distribution is probed via muon spin spectroscopy…

材料科学 · 物理学 2018-07-11 Jack Li

We have carried out neutron diffraction, muon spin relaxation (muSR) and inelastic neutron scattering investigations on a polycrystalline sample of CeOs2Al10 to investigate the nature of the phase transition observed near 29 K in the…

The spin polarization of Pt in Pt/NiFe2O4 and Pt/Fe bilayers is studied by interface-sensitive x-ray resonant magnetic reflectivity to investigate static magnetic proximity effects. The asymmetry ratio of the reflectivity was measured at…

In contrast to magnetic order formed by electrons' dipolar moments, ordering phenomena associated with higher-order multipoles (quadrupoles, octupoles, etc.) are more difficult to characterize because of the limited choice of experimental…

We perform sensitive nuclear magnetic resonance (NMR) with spin ensembles which are polarized by nitrogen vacancy centers (NV centers) in diamond at room-temperature. With a near shot-noise-limited photoluminescence detection and a highly…

We present an enhanced diffusion of nuclear spin polarization in fractional quantum Hall domain phases at $\nu = 2/3$. Resistively-detected NMR mediated by electrically driven domain-wall motion is used as a probe of local nuclear…

介观与纳米尺度物理 · 物理学 2016-05-24 S. Miyamoto , T. Hatano , S. Watanabe , Y. Hirayama

In this study we investigate magnetic properties, surface morphology and crystal structure in iron nanoclusters electrodeposited on lightly-doped (100) n-type silicon substrates. Our goal is to investigate the spin injection and detection…

材料科学 · 物理学 2015-12-09 J. F. Felix , L. C. Figueiredo , J. B. S. Mendes , P. C. Morais , C. I. L. de Araujo

We report on our 51V-NMR study of static and dynamical magnetic properties in the quasi-one-dimensional antiferromagnet BaCo2V2O8. Although the NMR spectrum shows well-defined antiferromagnetic (AF) order in the N\'eel ground state, the AF…