Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Budnick, J. I."'
Publikováno v:
Phys. Chem. Chem. Phys., 2018,20, 8624-8628
In this report, we identify the origin of the temperature dependence of the surface energy gap in impurity-doped topological insulators. The gap at the Dirac point and its variation with temperature were studied by using angle-resolved photoemission
Externí odkaz:
http://arxiv.org/abs/1711.02302
Publikováno v:
AIP Advances 7, 125322 (2017)
In order to unambiguously identify the source of magnetism reported in recent studies of the Co-Te system, two sets of high-quality, epitaxial CoTe$_x$ films (thickness $\simeq$ 300 nm) were prepared by pulse laser deposition (PLD). X-ray diffraction
Externí odkaz:
http://arxiv.org/abs/1707.06963
Autor:
Zhang, Zhiwei, Sutarto, R., He, F., Chou, F. C., Udby, L., Holm, S. L., Zhu, Z. H., Hines, W. A., Budnick, J. I., Wells, B. O.
Publikováno v:
Phys. Rev. Lett. 121, 067602 (2018)
A nematic order in stripe-ordered cuprates was recently identified with (001) reflection at resonant energies associated with the in-plane states. However, whether this resonant reflection is ubiquitous among all 214 cuprates is still unknown. Here w
Externí odkaz:
http://arxiv.org/abs/1707.04367
Autor:
Rueckert, F. J., He, F., Poudel, B., Dabrowski, B., Hines, W. A., Budnick, J. I., Wells, B. O.
Resonant soft X-ray scattering was used to determine the presence of more subtle orderings not detected in standard structural analyses. By tuning to specific Co absorption edges, arrangements particular to the electronic states of those elements are
Externí odkaz:
http://arxiv.org/abs/1707.04336
Autor:
Zhu, Z. H., Rueckert, F. J., Budnick, J. I., Hines, W. A., Niedermayer, Ch., Keller, L., Luetkens, H., Dabrowski, B., Kolesnik, S., Wells, B. O.
Publikováno v:
Phys. Rev. B 93, 224412 (2016)
Two magnetic phase transitions have been noted for SrCoO$_{3-y}$ for near-stoichiometric oxygen concentrations (small y). Using muon spin rotation and neutron scattering experiments, we have established that the two transitions represent separate, sp
Externí odkaz:
http://arxiv.org/abs/1510.07750
Autor:
Rueckert, F. J., Nie, Y. F., Abughayada, C., Sabok-Sayr, S. A., Mohottala, H., Budnick, J. I., Hines, W. A., Dabrowski, B., Wells, B. O.
Using pulsed laser deposition and a unique fast quenching method, we have prepared SrCoOx epitaxial films on SiTiO3 substrates. As electrochemical oxidation increases the oxygen content from x = 2.75 to 3.0, the films tend to favor the discrete magne
Externí odkaz:
http://arxiv.org/abs/1303.1149
Publikováno v:
Phys. Rev. B 87, 195129 (2013)
We have synthesized and characterized laser-deposited film samples of perovskite BaCrO_{3}, a missing member of the perovskite-chromate family. The BaCrO_{3} films have a substantially larger lattice constant than other chromates, are insulating, and
Externí odkaz:
http://arxiv.org/abs/1211.0534
We report on the local electronic structure of oxygen incorporated FeTe and FeSe films and how this relates to superconductivity observed in these films. In the case of FeTe, intially grown films are measured to be non-superconducting, but become sup
Externí odkaz:
http://arxiv.org/abs/1102.2155
Publikováno v:
Appl. Phys. Lett. 94, 242505 (2009)
We have studied the effect of tensile strain on the superconductivity in FeSe films. 50 nm, 100 nm, and 200 nm FeSe films were grown on MgO, SrTiO$_3$, and LaAlO$_3$ substrates by using a pulsed laser deposition technique. X-ray diffraction analysis
Externí odkaz:
http://arxiv.org/abs/0904.2806
We have used high-resolution Extended X-ray Absorption Fine-Structure and diffraction techniques to measure the local structure of strained La$_{0.5}$Sr$_{0.5}$CoO$_3$ films under compression and tension. The lattice mismatch strain in these compound
Externí odkaz:
http://arxiv.org/abs/0809.1178