371 citations · 2k across the 18 of their papers we have counts for
17 papers
Sub-wavelength mid-infrared imaging of locally driven photocurrents using diamond campanile probes
Rajasekhar Medapalli, Nathan D. Cottam, Khushboo Agarwal +12
Precise and high efficiency concentration of mid-infrared (mid-IR) light into sub wavelength volumes is essential for probing low-energy excitations and achieving strong field enha…
Spin and lattice dynamics at the spin-reorientation transitions in the rare-earth orthoferrite SmTbFeO
R. M. Dubrovin, A. I. Brulev, N. R. Vovk +10
Linear and non-linear couplings of magnetic and lattice excitations are at the heart of many fascinating magnetophononic phenomena observed in rare-earth orthoferrites, the distinc…
Photoengineering the Magnon Spectrum in an Insulating Antiferromagnet
V. Radovskaia, R. Andrei, J. R. Hortensius +9
Femtosecond optical pulses have opened a new frontier in ultrafast dynamics, enabling direct access to fundamental interactions in quantum materials. In antiferromagnets (AFMs), wh…
Laser-induced helicity and texture-dependent switching of nanoscale stochastic domains in a ferromagnetic film
Dinar Khusyainov, Rein Liefferink, MengXing Na +10
Controlling magnetic textures at ever smaller length and time scales is of key fundamental and technological interest. Achieving nanoscale control often relies on finding an extern…
Lattice dynamics and mixing of polar phonons in the rare-earth orthoferrite TbFeO
R. M. Dubrovin, E. M. Roginskii, V. A. Chernyshev +10
Rare-earth orthoferrites are a promising platform for antiferromagnetic spintronics with a rich variety of terahertz spin and lattice dynamics phenomena. For instance, it has been…
Coherent spin-wave transport in an antiferromagnet
J. R. Hortensius, D. Afanasiev, M. Matthiesen +6
Magnonics is a research field complementary to spintronics, in which the quanta of spin waves (magnons) replace electrons as information carriers, promising less energy dissipation…
Femtosecond Photocurrents at the Pt/FeRh Interface
Rajasekhar Medapalli, Guanqiao Li, Sheena K. K. Patel +4
Femtosecond laser excitation of FeRh/Pt bilayers launches an ultrafast pulse of electric photocurrent in the Pt-layer and thus results in emission of electromagnetic radiation in t…
Temporal and spectral fingerprints of ultrafast all-coherent spin switching
S. Schlauderer, C. Lange, S. Baierl +7
Future information technology demands ultimately fast, low-loss quantum control. Intense light fields have facilitated important milestones, such as inducing novel states of matter…
Ultrafast kinetics of the antiferromagnetic-ferromagnetic phase transition in FeRh
G. Li, R. Medapalli, J. H. Mentink +7
Understanding how fast short-range interactions build up long-range order is one of the most intriguing topics in condensed matter physics. FeRh is a test specimen for studying thi…
Light-driven ultrafast phonomagnetism
D. Afanasiev, J. R. Hortensius, B. A. Ivanov +6
Exciting atomic oscillations with light is a powerful technique to control the electronic properties of materials, leading to remarkable phenomena such as light-induced superconduc…
THz emission from Co/Pt bilayers with varied roughness, crystal structure, and interface intermixing
G. Li, R. Medapalli, R. V. Mikhaylovskiy +4
Femtosecond laser excitation of a Co/Pt bilayer results in the efficient emission of picosecond THz pulses. Two known mechanisms for generating THz emission are spin-polarized curr…
Laser induced THz emission from femtosecond photocurrents in Co/ZnO/Pt and Co/Cu/Pt multilayers
G. Li, R. V. Mikhaylovskiy, K. A. Grishunin +3
The ultrashort laser excitation of Co/Pt magnetic heterostructures can effectively generate spin and charge currents at the interfaces between magnetic and nonmagnetic layers. The…
Sub 100-ps dynamics of the anomalous Hall effect at THz frequencies
T. J. Huisman, R. V. Mikhaylovskiy, A. Tsukamoto +5
We report about the anomalous Hall effect in 4f 3d metallic alloys measured using terahertz time-domain spectroscopy. The strength of the observed terahertz spin-dependent transpor…
An effective magnetic field from optically driven phonons
T. F. Nova, A. Cartella, A. Cantaluppi +6
Light fields at THz and mid-infrared frequencies allow for the direct excitation of collective modes in condensed matter, which can be driven to large amplitudes. For example, exci…
Femtosecond control of electric currents at the interfaces of metallic ferromagnetic heterostructures
T. J. Huisman, R. V. Mikhaylovskiy, J. D. Costa +8
The idea to utilize not only the charge but also the spin of electrons in the operation of electronic devices has led to the development of spintronics, causing a revolution in how…
Inverse magneto-refraction as a mechanism for laser modification of spin-spin exchange parameters and subsequent terahertz emission from iron oxides
R. V. Mikhaylovskiy, E. Hendry, A. Secchi +8
Ultrafast non-thermal manipulation of magnetization by light relies on either indirect coupling of the electric field component of the light with spins via spin-orbit interaction o…
Revealing the role of orbital magnetism in ultrafast laser-induced demagnetization in multisublattice metallic magnets by terahertz spectroscopy
T. J. Huisman, R. V. Mikhaylovskiy, A. Tsukamoto +2
Simultaneous detection of THz emission and transient magneto-optical response is employed to study ultrafast laser-induced magnetization dynamics in multisublattice magnets NdFeCo…