88 citations · 280 across the 8 of their papers we have counts for
8 papers
Picosecond creation of switchable optomagnets with giant photoinduced Kerr rotations in polar antiferromagnetic (FeZn)MoO
Y. M. Sheu, Y. M. Chang, C. P. Chang +5
On-demand spin orientation with long polarized lifetime and easily detectable signal is an ultimate goal for spintronics. However, there still exists a trade-off between controllab…
Photo-creating supercooled spiral-spin states in a multiferroic manganite
Y. M. Sheu, N. Ogawa, Y. Kaneko +1
We demonstrate that dynamics of the ab-spiral-spin order in a magnetoelectric multiferroic Eu0.55Y0.45MnO3 can be unambiguously probed through optical second harmonic signals, gene…
Using ultrashort optical pulses to couple ferroelectric and ferromagnetic order in an oxide heterostructure
Y. M. Sheu, S. A. Trugman, L. Yan +3
A new approach to all-optical detection and control of the coupling between electric and magnetic order on ultrafast timescales is achieved using time-resolved second harmonic gene…
Polaronic transport induced by competing interfacial magnetic order in a LaCaMnO/BiFeO heterostructure
Y. M. Sheu, S. A. Trugman, L. Yan +4
Using ultrafast optical spectroscopy, we show that polaronic behavior associated with interfacial antiferromagnetic order is likely the origin of tunable magnetotransport upon swit…
Photo-induced stabilization and enhancement of the ferroelectric polarization in BaSrTiO/LaCa(Sr)MnO thin film heterostructures
Y. M. Sheu, S. A. Trugman, L. Yan +5
An emerging area in condensed matter physics is the use of multilayered heterostructures to enhance ferroelectricity in complex oxides. Here, we demonstrate that optically pumping…
Free-carrier relaxation and lattice heating in photoexcited bismuth thin films
Y. M. Sheu, Y. J. Chien, C. Uher +2
We report ultrafast surface pump and interface probe experiments on photoexcited carrier transport across single crystal bismuth films on sapphire. The film thickness is sufficient…
Ultrafast carrier dynamics and radiative recombination in multiferroic BiFeO
Y. M. Sheu, S. A. Trugman, Y. -S. Park +6
We report a comprehensive study of ultrafast carrier dynamics in single crystals of multiferroic BiFeO. Using femtosecond optical pump-probe spectroscopy, we find that the ph…
Imaging nonequilibrium atomic vibrations with x-ray diffuse scattering
M. Trigo, Y. M Sheu, J. Chen +4
For over a century, x-ray scattering has been the most powerful tool for determining the equilibrium structure of crystalline materials. Deviations from perfect periodicity, for ex…