JOPSS - Search Results

Colossal magnetoresistance (CMR) refers to a large change in electrical conductivity induced by a magnetic field in the vicinity of a metal-insulator transition. CMR occurs due to a correlation between the magnetic structure and electron conduction and has inspired extensive studies for decades. Here, in the antiferromagnetic insulator Cr $_{2}$ O $_{3}$ , we found a sharp transition between conducting and nonconducting states for spin currents at room temperature. The spin-current transmission changes by two orders of magnitude within a narrow temperature window of 14K around the Neel temperature. The spin conductor-nonconductor transition can be modulated by a magnetic field, giving an isothermal change of spin-current transmission of up to 500%, effectively an on-off switch for spin currents.

Journal Articles

Antiferromagnetic anisotropy determination by spin Hall magnetoresistance

Wang, H.*; Hou, D.*; Qiu, Z.*; Kikkawa, Takashi*; Saito, Eiji; Jin, X.*

Journal of Applied Physics, 122(8), p.083907_1 - 083907_6, 2017/08

https://doi.org/10.1063/1.4986372

Times Cited Count：3 Percentile：14.19(Physics, Applied)

Journal Articles

Time-resolved study of field-induced suppression of longitudinal spin Seebeck effect

Hioki, Tomosato*; Iguchi, Ryo*; Qiu, Z.*; Hou, D.*; Uchida, Kenichi*; Saito, Eiji

Applied Physics Express, 10(7), p.073002_1 - 073002_4, 2017/06

https://doi.org/10.7567/APEX.10.073002

Times Cited Count：14 Percentile：53.66(Physics, Applied)

Journal Articles

Detection of induced paramagnetic moments in Pt on Y $_{3}$ Fe $_{5}$ O $_{12}$ via X-ray magnetic circular dichroism

Kikkawa, Takashi*; Suzuki, Motohiro*; Okabayashi, Jun*; Uchida, Kenichi*; Kikuchi, Daisuke*; Qiu, Z.*; Saito, Eiji

Physical Review B, 95(21), p.214416_1 - 214416_7, 2017/06

https://doi.org/10.1103/PhysRevB.95.214416

Times Cited Count：16 Percentile：58.10(Materials Science, Multidisciplinary)

Journal Articles

Tunable sign change of spin hall magnetoresistance in Pt/NiO/YIG structures

Hou, D.*; Qiu, Z.*; Barker, J.*; Sato, Koji*; Yamamoto, Kei; Vlez, S.*; Gomez-Perez, J. M.*; Hueso, L. E.*; Casanova, F.*; Saito, Eiji

Physical Review Letters, 118(14), p.147202_1 - 147202_6, 2017/04

https://doi.org/10.1103/PhysRevLett.118.147202

Times Cited Count：113 Percentile：97.01(Physics, Multidisciplinary)

Journal Articles

Fabrication and magnetic control of YFeO $_{12}$ cantilevers

Seo, Y.-J.*; Harii, Kazuya; Takahashi, Ryo*; Chudo, Hiroyuki; Oyanagi, Koichi*; Qiu, Z.*; Ono, Takahito*; Shiomi, Yuki*; Saito, Eiji

Applied Physics Letters, 110(13), p.132409_1 - 132409_4, 2017/03

https://doi.org/10.1063/1.4979553

Times Cited Count：13 Percentile：51.20(Physics, Applied)

We have fabricated ferrite cantilevers in which their vibrational properties can be controlled by external magnetic fields. Submicron-scale cantilever structures were made from YFeO $_{12}$ films by physical etching combined with the use of a focused ion beam milling technique. We found that the cantilevers exhibit two resonance modes which correspond to horizontal and vertical vibrations. Under external magnetic fields, the resonance frequency of the horizontal mode increases, while that of the vertical mode decreases, quantitatively consistent with our numerical simulation for magnetic forces. The changes in resonance frequencies with magnetic fields reach a few percent, showing that an efficient magnetic control of resonance frequencies was achieved.

Journal Articles

Magnon polarons in the spin Seebeck effect

Kikkawa, Takashi*; Shen, K.*; Flebus, B.*; Duine, R. A.*; Uchida, Kenichi*; Qiu, Z.*; Bauer, G. E. W.*; Saito, Eiji

Physical Review Letters, 117(20), p.207203_1 - 207203_6, 2016/11

https://doi.org/10.1103/PhysRevLett.117.207203

Times Cited Count：159 Percentile：97.72(Physics, Multidisciplinary)

Journal Articles

Spin-current probe for phase transition in an insulator

Qiu, Z.*; Li, J.*; Hou, D.*; Arenholz, E.*; N'Diaye, A. T.*; Tan, A.*; Uchida, Kenichi*; Sato, Koji*; Okamoto, Satoshi*; Tserkovnyak, Y.*; et al.

Nature Communications (Internet), 7, p.12670_1 - 12670_6, 2016/08

https://doi.org/10.1038/ncomms12670

Times Cited Count：151 Percentile：97.04(Multidisciplinary Sciences)

Journal Articles

Observation of temperature-gradient-induced magnetization

Hou, D.*; Qiu, Z.*; Iguchi, Ryo*; Sato, Koji*; Vehstedt, E. K.*; Uchida, Kenichi*; Bauer, G. E. W.*; Saito, Eiji

Nature Communications (Internet), 7, p.12265_1 - 12265_6, 2016/07

https://doi.org/10.1038/ncomms12265

Times Cited Count：13 Percentile：63.17(Multidisciplinary Sciences)

Journal Articles

Origin of the spin Seebeck effect in compensated ferrimagnets

Geprgs, S.*; Kehlberger, A.*; Coletta, F.*; Qiu, Z.*; Guo, E.-J.*; Schulz, T.*; Mix, C.*; Meyer, S.*; Kamra, A.*; Althammer, M.*; et al.

Nature Communications (Internet), 7, p.10452_1 - 10452_6, 2016/02

https://doi.org/10.1038/ncomms10452

Times Cited Count：164 Percentile：97.41(Multidisciplinary Sciences)

Journal Articles

Enhancement of anomalous Nernst effects in metallic multilayers free from proximity-induced magnetism

Uchida, Kenichi*; Kikkawa, Takashi*; Seki, Takeshi*; Oyake, Takafumi*; Shiomi, Junichiro*; Qiu, Z.*; Takanashi, Koki*; Saito, Eiji

Physical Review B, 92(9), p.094414_1 - 094414_6, 2015/09

https://doi.org/10.1103/PhysRevB.92.094414

Times Cited Count：93 Percentile：93.62(Materials Science, Multidisciplinary)

Journal Articles

All-oxide spin Seebeck effects

Qiu, Z.*; Hou, D.*; Kikkawa, Takashi*; Uchida, Kenichi*; Saito, Eiji

Applied Physics Express, 8(8), p.083001_1 - 083001_3, 2015/08

https://doi.org/10.7567/APEX.8.083001

Times Cited Count：31 Percentile：74.22(Physics, Applied)

Journal Articles

Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect

Seki, Takeshi*; Uchida, Kenichi*; Kikkawa, Takashi*; Qiu, Z.*; Saito, Eiji; Takanashi, Koki*

Applied Physics Letters, 107(9), p.092401_1 - 092401_4, 2015/08

https://doi.org/10.1063/1.4929691

Times Cited Count：39 Percentile：80.43(Physics, Applied)

Journal Articles

Critical suppression of spin Seebeck effect by magnetic fields

Kikkawa, Takashi*; Uchida, Kenichi*; Daimon, Shunsuke*; Qiu, Z.*; Shiomi, Yuki*; Saito, Eiji

Physical Review B, 92(6), p.064413_1 - 064413_9, 2015/08

https://doi.org/10.1103/PhysRevB.92.064413

Times Cited Count：165 Percentile：97.28(Materials Science, Multidisciplinary)

Journal Articles

Intrinsic surface magnetic anisotropy in Y $_{3}$ Fe $_{5}$ O $_{12}$ as the origin of low-magnetic-field behavior of the spin Seebeck effect

Uchida, Kenichi*; Oe, Junichiro*; Kikkawa, Takashi*; Daimon, Shunsuke*; Hou, D.*; Qiu, Z.*; Saito, Eiji

Physical Review B, 92(1), p.014415_1 - 014415_8, 2015/07

https://doi.org/10.1103/PhysRevB.92.014415

Times Cited Count：36 Percentile：78.65(Materials Science, Multidisciplinary)

Journal Articles

Spin-current injection and detection in -(BEDT-TTF) $_{2}$ Cu[N(CN) $_{2}$ ]Br

Qiu, Z.*; Uruichi, Mikio*; Hou, D.*; Uchida, Kenichi*; Yamamoto, Hiroshi*; Saito, Eiji

AIP Advances (Internet), 5(5), p.057167_1 - 057167_7, 2015/05

https://doi.org/10.1063/1.4922007

Times Cited Count：15 Percentile：53.12(Nanoscience & Nanotechnology)

Journal Articles

Extending resonant inelastic X-ray scattering to the extreme ultraviolet

Wray, L. A.*; Huang, S.-W.*; Jarrige, I.*; Ikeuchi, Kazuhiko*; Ishii, Kenji; Li, J.*; Qiu, Z. Q.*; Hussain, Z.*; Chuang, Y.-D.*

Frontiers in Physics (Internet), 3, p.32_1 - 32_11, 2015/05

https://doi.org/10.3389/fphy.2015.00032

Times Cited Count：4

Journal Articles

Influence of interface condition on spin-Seebeck effects

Qiu, Z.*; Hou, D.*; Uchida, Kenichi*; Saito, Eiji

Journal of Physics D; Applied Physics, 48(16), p.164013_1 - 164013_5, 2015/04

https://doi.org/10.1088/0022-3727/48/16/164013

Times Cited Count：43 Percentile：82.46(Physics, Applied)

Presentation/Publication Type

Journal/Book Title

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First Author

Keyword

Language

Publication Year

Held year of conference

Electric readout of magnetic stripes in insulators

Spin transport in antiferromagnetic insulators; Progress and challenges

Spin colossal magnetoresistance in an antiferromagnetic insulator

Antiferromagnetic anisotropy determination by spin Hall magnetoresistance

Time-resolved study of field-induced suppression of longitudinal spin Seebeck effect

Detection of induced paramagnetic moments in Pt on Y $_{3}$ Fe $_{5}$ O $_{12}$ via X-ray magnetic circular dichroism

Tunable sign change of spin hall magnetoresistance in Pt/NiO/YIG structures

Fabrication and magnetic control of YFeO $_{12}$ cantilevers

Magnon polarons in the spin Seebeck effect

Spin-current probe for phase transition in an insulator

Observation of temperature-gradient-induced magnetization

Origin of the spin Seebeck effect in compensated ferrimagnets

Enhancement of anomalous Nernst effects in metallic multilayers free from proximity-induced magnetism

All-oxide spin Seebeck effects

Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect

Critical suppression of spin Seebeck effect by magnetic fields

Intrinsic surface magnetic anisotropy in Y $_{3}$ Fe $_{5}$ O $_{12}$ as the origin of low-magnetic-field behavior of the spin Seebeck effect

Spin-current injection and detection in -(BEDT-TTF) $_{2}$ Cu[N(CN) $_{2}$ ]Br

Extending resonant inelastic X-ray scattering to the extreme ultraviolet

Influence of interface condition on spin-Seebeck effects