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104 papers
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…
Nematic response revealed by coherent phonon oscillations in BaFeAs
Min-Cheol Lee, Inho Kwak, Yeongseon Lee +5
We investigate coherent phonon oscillations of BaFeAs using optical pump-probe spectroscopy. Time-resolved optical reflectivity shows periodic modulations due to c…
In situ investigation of conducting interface formation in LaAlO3/SrTiO3 heterostructure
Hyang Keun Yoo, Luca Moreschini, Aaron Bostwick +4
The high-mobility conducting interface (CI) between LaAlO_{3}(LAO) and SrTiO_{3}(STO) has revealed many fascinating phenomena, including exotic magnetism and superconductivity. But…
Growth and atomically resolved polarization mapping of ferroelectric thin film
Jihwan Jeong, Junsik Mun, Saikat Das +5
Aurivillius ferroelectric (BWO) encompasses a broad range of functionalities, including robust fatigue-free ferroelectricity, high photocatalytic activity, and ionic con…
Two-channel anomalous Hall effect in SrRuO3
Graham Kimbell, Paul M. Sass, Bart Woltjes +4
The Hall effect in SrRuO thin-films near the thickness limit for ferromagnetism shows an extra peak in addition to the ordinary and anomalous Hall effects. This extra peak has…
Electronic band structure of (111) thin filman angle-resolved photoemission spectroscopy study
Hanyoung Ryu, Yukiaki Ishida, Bongju Kim +16
We studied the electronic band structure of pulsed laser deposition (PLD) grown (111)-oriented SrRuO (SRO) thin films using \textit{in situ} angle-resolved photoemission spectr…