Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Keavney D"'
We measured the local magneto-transport (MT) signal with an out-of-plane magnetic field, including magneto-resistance (MR) and Extraordinary Hall effect (EHE), in exchange-biased [Co/Pd]IrMn thin multilayers that are micro-structured with a 100 micro
Externí odkaz:
http://arxiv.org/abs/2111.05491
Publikováno v:
Phys. Rev. B 95, 174430 (2017)
We report the magnetic and electronic properties of the bilayer ruthenate Sr$_3$Ru$_2$O$_7$ upon Fe substitution for Ru. We find that Sr$_3$(Ru$_{1-x}$Fe$_x$)$_2$O$_7$ shows a spin-glass-like phase below 4 K for $x$ = 0.01 and commensurate E-type ant
Externí odkaz:
http://arxiv.org/abs/1802.03633
Autor:
Zhu, M., Shanavas, K. V., Wang, Y., Zou, T., Sun, W. F., Tian, W., Garlea, V. O., Podlesnyak, A., Matsuda, M., Stone, M. B., Keavney, D., Mao, Z. Q., Singh, D. J., Ke, X.
Publikováno v:
Phys. Rev. B 95, 054413 (2017)
Sr$_2$RuO$_4$, an unconventional superconductor, is known to possess an incommensurate spin density wave instability driven by Fermi surface nesting. Here we report a static spin density wave ordering with a commensurate propagation vector $q_c$ = (0
Externí odkaz:
http://arxiv.org/abs/1801.10514
Autor:
de Groot, J., Mueller, T., Rosenberg, R. A., Keavney, D. J., Islam, Z., Kim, J. -W., Angst, M.
Publikováno v:
Phys. Rev. Lett. 108, 187601 (2012)
We present the refinement of the crystal structure of charge-ordered LuFe2O4, based on single-crystal x-ray diffraction data. The arrangement of the different Fe-valence states, determined with bond-valence-sum analysis, corresponds to a stacking of
Externí odkaz:
http://arxiv.org/abs/1112.0978
We report a time resolved imaging and micromagnetic simulation study of the relaxation dynamics of a magnetic vortex in the non-linear regime. We use time-resolved photoemission electron microscopy and micromagnetic calculations to examine the emerge
Externí odkaz:
http://arxiv.org/abs/0901.0864
We report direct imaging by means of x-ray photoemission electron microscopy of the dynamics of magnetic vortices confined in micron-size circular Permalloy dots that are 30 nm thick. The vortex core positions oscillate on a 10-ns timescale in a self
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510595
The magnetic properties of the ferromagnetic semiconductor In0.98Mn0.02As were characterized by x-ray absorption spectroscopy and x-ray magnetic circular dichroism. The Mn exhibits an atomic-like L2,3 absorption spectrum that indicates that the 3d st
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412384
Publikováno v:
Phys. Rev. B 70 172403 (2004)
We demonstrate an element-specific measurement of magnetization precession in a metallic ferromagnetic alloy, separating Ni and Fe moment motion in Ni81Fe19. Pump-probe X-ray magnetic circular dichroism (XMCD), synchronized with short magnetic field
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405295
Autor:
Freeland, J. W., Kodama, R. H., Vedpathak, M., Erwin, S. C., Keavney, D. J., Winarski, R., Ryan, P., Rosenberg, R. A.
We report direct experimental evidence showing induced magnetic moments on Ge at the interface in an Fe/Ge system. Details of the x-ray magnetic circular dichroism and resonant magnetic scattering at the Ge L edge demonstrate the presence of spin-pol
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307628
Autor:
Newhouse-Illige, T., Liu, Yaohua, Xu, M., Reifsnyder Hickey, D., Kundu, A., Almasi, H., Bi, Chong, Wang, X., Freeland, J. W., Keavney, D. J., Sun, C. J., Xu, Y. H., Rosales, M., Cheng, X. M., Zhang, Shufeng, Mkhoyan, K. A., Wang, W. G.
Magnetic interlayer coupling is one of the central phenomena in spintronics. It has been predicted that the sign of interlayer coupling can be manipulated by electric fields, instead of electric currents, thereby offering a promising low energy magne
Externí odkaz:
http://hdl.handle.net/10150/624333
http://arizona.openrepository.com/arizona/handle/10150/624333
http://arizona.openrepository.com/arizona/handle/10150/624333