Wirthmann, André, Hui, Xiong, Mecking, N., Gui, Y. S., Chakraborty, T., Hu, C. M., ...
We report on microwave photovoltage and simultaneous magnetotransport measurements in a Ga, Mn As film oriented normal to the magnetic field. We detect the ferromagnetic resonance over a broad...
Wirthmann, André, Hui, Xiong, Mecking, N., Gui, Y. S., Chakraborty, T., Reinwald, M., ...
We report on microwave photovoltage and simultaneous magnetotransport measurements in a (Ga,Mn)As film oriented normal to the magnetic field. We detect the ferromagnetic resonance over a broad...
Microwave photovoltage and photoresistance effects in ferromagnetic microstrips (2007)
We investigate the dc electric response induced by ferromagnetic resonance in ferromagnetic Permalloy (Ni80Fe20) microstrips. The resulting magnetization precession alters the angle of the...
Quantized spin excitations in a single ferromagnetic microstrip have been measured using the microwave photovoltage technique. Several kinds of spin wave modes due to different contributions of the...
Realization of a Room-Temperature Spin Dynamo: The Spin Rectification Effect (2006)
Gui, Y. S., Mecking, N., Zhou, X., Williams, G.
We demonstrate a room temperature spin dynamo where the precession of electron spins in ferromagnets driven by microwaves manifests itself in a collective way by generating d.c. currents. The...
Resonances in Ferromagnetic Gratings Detected by Microwave Photoconductivity (2005)
Gui, Y. S., Holland, S., Mecking, N.
We investigate the impact of microwave excited spin excitations on the DC charge transport in a ferromagnetic (FM) grating. We observe both resonant and nonresonant microwave photoresistance....
Giant spin-orbit splitting in a HgTe quantum well (2004)
Gui, Y. S., Becker, C. R., Dai, N., Liu, J., Qiu, Z. J., Novik, E. G., ...
We have investigated beating patterns in Shubnikov-de Haas oscillations for HgTe/Hg_{0.3}Cd_{0.7}Te(001) quantum wells with electron densities of 2 to 3 X 10^{12} cm^{-2}. Up to 12 beating nodes have...
Current heating of a magnetic 2DEG in HgMnTe/HgCdTe quantum wells (2003)
Gui, Y. S., Becker, C. R., Liu, J., Koenig, M., Daumer, V., Kiselev, M. N., ...
Heating caused by electrons with excess kinetic energy has been investigated in a magnetic two-dimensional electron gas, M2DEG, in HgMnTe/HgCdTe(001) quantum wells. The temperature of the Mn ions,...
Interplay of Rashba, Zeeman and Landau splitting in a magnetic two dimensional electron gas (2002)
Gui, Y. S., Becker, C. R., Liu, J., Daumer, V., Hock, V., Buhmann, H., ...
The transport properties of a magnetic two dimensional electron gas consisting of a modulation doped n type HgMnTe/HgCdTe quantum well, QW, have been investigated. By analyzing the Shubnikov-de Haas...