Zobrazeno 1 - 10
of 2 221
pro vyhledávání: '"Douglas, J F"'
Autor:
Sun, Z., Wang, Q., Douglas, J. F., Lin, H., Sahrakorpi, S., Barbiellini, B., Markiewicz, R. S., Bansil, A., Fedorov, A. V., Rotenberg, E., Zheng, H., Mitchell, J. F., Dessau, D. S.
Using angle-resolved photoemission spectroscopy (ARPES), we investigate the electronic band structure and Fermi surface of ferromagnetic La$_{2-2x}$Sr$_{1+2x}$Mn$_2$O$_7$ ($x=0.38$). Besides the expected two hole pockets and one electron pocket of ma
Externí odkaz:
http://arxiv.org/abs/1310.6476
Non-monotonic Fermi surface evolution and its correlation with stripe ordering in bilayer manganites
Autor:
Sun, Z., Wang, Q., Douglas, J. F., Chuang, Y. -D., Fedorov, A. V., Rotenberg, E., Lin, H., Sahrakorpi, S., Barbiellini, B., Markiewicz, R. S., Bansil, A., Zheng, H., Mitchell, J. F., Dessau, D. S.
In correlated electron systems such as cuprate superconductors and colossal magnetoresistive (CMR) oxides there is often a tendency for a nanoscale self-organization of electrons that can give rise to exotic properties and to extreme non-linear respo
Externí odkaz:
http://arxiv.org/abs/0911.0439
Autor:
Plumb, N. C., Reber, T. J., Koralek, J. D., Sun, Z., Douglas, J. F., Aiura, Y., Oka, K., Eisaki, H., Dessau, D. S.
Publikováno v:
Phys. Rev. Lett. 105, 046402 (2010)
Using low-photon energy angle-resolved photoemission (ARPES), we study the low-energy dispersion along the nodal (pi, pi) direction in Bi(2)Sr(2)CaCu(2)O(8+delta) (Bi2212) as a function of temperature. Less than 10 meV below the Fermi energy, the hig
Externí odkaz:
http://arxiv.org/abs/0903.4900
Autor:
Iwasawa, H., Douglas, J. F., Sato, K., Masui, T., Yoshida, Y., Sun, Z., Eisaki, H., Bando, H., Ino, A., Arita, M., Shimada, K., Namatame, H., Taniguchi, M., Tajima, S., Uchida, S., Saitoh, T., Dessau, D. S., Aiura, Y.
Publikováno v:
Phys. Rev. Lett. 101, 157005 (2008)
Angle-resolved photoemission spectroscopy with low-energy tunable photons along the nodal direction of oxygen isotope substituted Bi2Sr2CaCu2O8+delta reveals a distinct oxygen isotope shift near the electron-boson coupling "kink" in the electronic di
Externí odkaz:
http://arxiv.org/abs/0808.1323
Autor:
Koralek, J. D., Douglas, J. F., Plumb, N. C., Griffith, J. D., Cundiff, S. T., Kapteyn, H. C., Murnane, M. M., Dessau, D. S.
Publikováno v:
REVIEW OF SCIENTIFIC INSTRUMENTS 78, 053905 (2007)
A laser-based angle resolved photoemission (APRES) system utilizing 6 eV photons from the fourth harmonic of a mode-locked Ti:sapphire oscillator is described. This light source greatly increases the momentum resolution and photoelectron count rate,
Externí odkaz:
http://arxiv.org/abs/0706.1060
We numerically study a simple fluid composed of particles having a hard-core repulsion, complemented by two short-ranged attractive (sticky) spots at the particle poles, which provides a simple model for equilibrium polymerization of linear chains. T
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701531
Autor:
Sun, Z., Douglas, J. F., Fedorov, A. V., Chuang, Y. -D., Zheng, H., Mitchell, J. F., Dessau, D. S.
Angle-resolved photoemission spectroscopy was used to investigate the evolution of the electronic structure across the metal-insulator transition in bi-layer manganite $La_{1.24}Sr_{1.76}Mn_2O_7$. We found that this system is a metal for $T
Externí odkaz:
http://arxiv.org/abs/cond-mat/0611074
Autor:
Sun, Z., Chuang, Y. -D., Fedorov, A. V., Douglas, J. F., Reznik, D., Weber, F., Aliouane, N., Argyriou, D. N., Zheng, H., Mitchell, J. F., Kimura, T., Tokura, Y., Revcolevschi, A., Dessau, D. S.
Using Angle-Resolved Photoemission (ARPES), we present the first observation of sharp quasiparticle-like peaks in a CMR manganite. We focus on the ($\pi$,0) regions of k-space and study their electronic scattering rates and dispersion kinks, uncoveri
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510255
Autor:
Koralek, J. D., Douglas, J. F., Plumb, N. C., Sun, Z., Fedorov, A., Murnane, M., Kapteyn, H., Cundiff, S., Aiura, Y., Oka, K., Eisaki, H., Dessau, D. S.
Publikováno v:
Phys Rev Lett 96, 017005 (2006)
A new low photon energy regime of angle resolved photoemission spectroscopy is accessed with lasers and used to study the superconductor Bi2Sr2CaCu2O8+delta. The low energy increases bulk sensitivity, reduces background, and improves resolution. With
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508404