221 citations · 1.4k across the 16 of their papers we have counts for
16 papers
Spin-charge conversion in NiMnSb Heusler alloy films
Zhenchao Wen, Zhiyong Qiu, Sebastian Tolle +7
Half-metallic Heusler alloys are attracting considerable attention because of their unique half-metallic band structures which exhibit high spin polarization and yield huge magneto…
Spin colossal magnetoresistance in an antiferromagnetic insulator
Zhiyong Qiu, Dazhi Hou, Joseph Barker +3
Colossal magnetoresistance (CMR) refers to a large change in electrical conductivity induced by a magnetic field in the vicinity of a metal-insulator transition and has inspired ex…
Spin transport across antiferromagnets induced by the spin Seebeck effect
Joel Cramer, Ulrike Ritzmann, Bo-Wen Dong +5
For prospective spintronics devices based on the propagation of pure spin currents, antiferromagnets are an interesting class of materials that potentially entail a number of advan…
Antiferromagnetic anisotropy determination by spin Hall magnetoresistance
Hua Wang, Dazhi Hou, Zhiyong Qiu +3
An electric method for measuring magnetic anisotropy in antiferromagnetic insulators (AFIs) is proposed. When a metallic film with strong spin-orbit interactions, e.g., platinum (P…
Perpendicular magnetic anisotropy in insulating ferrimagnetic gadolinium iron garnet thin films
H. Maier-Flaig, S. Geprägs, Z. Qiu +5
We present experimental control of the magnetic anisotropy in a gadolinium iron garnet (GdIG) thin film from in-plane to perpendicular anisotropy by simply changing the sample temp…
Ferroic collinear multilayer magnon spin valve
Joel Cramer, Felix Fuhrmann, Ulrike Ritzmann +10
Information transport and processing by pure magnonic spin currents in insulators is a promising alternative to conventional charge-current driven spintronic devices. The absence o…
Detection of induced paramagnetic moments in Pt on YFeO via x-ray magnetic circular dichroism
Takashi Kikkawa, Motohiro Suzuki, Jun Okabayashi +4
Magnetic moments in an ultra-thin Pt film on a ferrimagnetic insulator YFeO (YIG) have been investigated at high magnetic fields and low temperatures by means of X-r…
Non-local magnon transport in the compensated ferrimagnet GdIG
Kathrin Ganzhorn, Tobias Wimmer, Joseph Barker +8
We study the diffusive transport of magnons through the compensated ferrimagnetic insulator Gd3Fe5O12 (GdIG). The magnons are injected and detected electrically in a non-local meas…
Fabrication and magnetic control of Y3Fe5O12 cantilevers
Yong-Jun Seo, Kazuya Harii, Ryo Takahashi +6
We have fabricated ferrite cantilevers in which their vibrational properties can be controlled by external magnetic fields. Submicron-scale cantilever structures were made from Y3F…
Magnon-polaron transport in magnetic insulators
Benedetta Flebus, Ka Shen, Takashi Kikkawa +5
We theoretically study the effects of strong magnetoelastic coupling on the transport properties of magnetic insulators. We develop a Boltzmann transport theory for the mixed magno…
Tunable sign change of spin Hall magnetoresistance in Pt/NiO/YIG structures
Dazhi Hou, Zhiyong Qiu, Joseph Barker +7
Spin Hall magnetoresistance (SMR) has been investigated in Pt/NiO/YIG structures in a wide range of temperature and NiO thickness. The SMR shows a negative sign below a temperature…
Magnon Polarons in the Spin Seebeck Effect
Takashi Kikkawa, Ka Shen, Benedetta Flebus +5
Sharp structures in magnetic field-dependent spin Seebeck effect (SSE) voltages of Pt/YFeO (YIG) at low temperatures are attributed to the magnon-phonon interact…
Spin-current probe for phase transition in an insulator
Zhiyong Qiu, Jia Li, Dazhi Hou +9
Spin fluctuation and transition have always been one of central topics of magnetism and condensed matter science. Experimentally, the spin fluctuation is found transcribed onto sca…
Critical suppression of spin Seebeck effect by magnetic fields
Takashi Kikkawa, Ken-ichi Uchida, Shunsuke Daimon +3
The longitudinal spin Seebeck effect (LSSE) in Pt/YFeO (YIG) junction systems has been investigated at various magnetic fields and temperatures. We found that the LS…
Interface-dependent magnetotransport properties for thin Pt films on ferrimagnetic Y3Fe5O12
Y. Shiomi, T. Ohtani, S. Iguchi +5
We have studied magnetoresistance and Hall effects for 1.8-nm-thick Pt films grown on a ferrimagnetic insulator Y3Fe5O12 in a wide temperature (0.46-300 K) and magnetic-field (-15-…
Plasmonic generation of spin currents
Ken-ichi Uchida, Hiroto Adachi, Daisuke Kikuchi +4
Surface plasmons, free-electron collective oscillations in metallic nanostructures, provide abundant routes to manipulate light-electron interactions that can localize light energy…