313 citations · 1.9k across the 26 of their papers we have counts for
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Direct visualization and control of SrOx segregation on semiconducting Nb doped SrTiO3 (100) surface
Hyang Keun Yoo, Daniel Schwarz, Soren Ulstrup +6
We investigated how SrOx segregates on a Nb doped SrTiO3 (100) surface by in air annealing. Using atomic force and photoemission electron microscopes, we can directly visualize the…
Modulating Curie Temperature and Magnetic Anisotropy in Nanoscale Layered Cr_{2}Te_{3} Films: Implications for Room-Temperature Spintronics
In Hak Lee, Byoung Ki Choi, Hyuk Jin Kim +18
Nanoscale layered ferromagnets have demonstrated fascinating two-dimensional magnetism down to atomic layers, providing a peculiar playground of spin orders for investigating funda…
Hot carrier-assisted switching of the electron-phonon interaction in 1-VSe
Paulina Majchrzak, Sahar Pakdel, Deepnarayan Biswas +20
We apply an intense infrared laser pulse in order to perturb the electronic and vibrational states in the three-dimensional charge density wave material 1-VSe. Ultrafast sna…
Tunable polaronic conduction in anatase TiO2
S. Moser, L. Moreschini, J. Jacimovic +9
Oxygen vacancies created in anatase TiO2 by UV photons (80 - 130 eV) provide an effective electron-doping mechanism and induce a hitherto unobserved dispersive metallic state. Angl…
Giant ambipolar Rashba effect in a semiconductor: BiTeI
A. Crepaldi, L. Moreschini, G. Autès +11
We observe a giant spin-orbit splitting in bulk and surface states of the non-centrosymmetric semiconductor BiTeI. We show that the Fermi level can be placed in the valence or in t…
Highly p-doped graphene obtained by fluorine intercalation
Andrew L. Walter, Ki-Joon Jeon, Aaron Bostwick +8
We present a method for decoupling epitaxial graphene grown on SiC(0001) by intercalation of a layer of fluorine at the interface. The fluorine atoms do not enter into a covalent b…
Selective growth of perovskite oxides on SrTiO3 (001) by control of surface reconstructions
Soo-hyon Phark, Young Jun Chang, Tae Won Noh
We report surface reconstruction (RC)-dependent growths of SrTiO3 and SrVO3 on a SrTiO3 (001) surface with two different coexisting surface RCs, namely (2x1) and c(6x2). Up to the…
Structure and Correlation Effects in Semiconducting SrTiO
Young Jun Chang, Aaron Bostwick, Yong Su Kim +2
We have investigated the effects of structure change and electron correlation on SrTiO single crystals using angle-resolved photoemission spectroscopy. We show that the cubic…
Localized electronic states induced by defects and possible origin of ferroelectricity in strontium titanate thin films
Yong Su Kim, J. Kim, S. J. Moon +6
Several defect configurations including oxygen vacancies have been investigated as possible origins of the reported room-temperature ferroelectricity of strontium titanate (STO) th…
Ferroelectric properties of SrRuO3/BaTiO3/SrRuO3 ultrathin film capacitors free from passive lay
Y. S. Kim, J. Y. Jo, D. J. Kim +9
Structural studies on ultrathin SrRuO3/BaTiO3/SrRuO3 capacitors, with BaTiO3 thicknesses of between 5 nm and 30 nm, show well-defined interfaces between ferroelectric BaTiO3 and el…