54 citations · 474 across the 41 of their papers we have counts for
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Epitaxial lift-off of LaSrMnO membranes enabled by BaO sacrificial layers and restoration of the Curie temperature
Takahito Takeda, Daigo Matsubara, Yuki K. Wakabayashi +7
Ultrathin complex-oxide membranes provide a powerful platform for strain engineering, interfacial control, and heterogeneous integration; however, their formation remains constrain…
Giant odd-parity magnetoresistance from proximity-induced topological states
Tomoki Hotta, Le Duc Anh, Takahiro Chiba +2
Magnetoresistance typically exhibits even symmetry with respect to the magnetic field, owing to time reversal symmetry (TRS) as dictated by Onsager reciprocity relations. However,…
Magnetic anisotropy related to hybridization between Fe 3 and As 4 orbitals in a bcc Fe-As thin film
Takahito Takeda, Karumuri Sriharsha, Seiji Aota +9
The magnetic anisotropy (MA) of Fe-based ferromagnetic thin films has been extensively studied for device applications. The examined material is a new Fe-based ferromagnetic thin f…
Topological surface states induced by the magnetic proximity effect
Soichiro Fukuoka, Le Duc Anh, Masayuki Ishida +4
The combination of magnetism and topological properties in one material platform is attracting significant attention due to the potential of realizing low power consumption and err…
Mechanism of ferromagnetism enhancement in a La Sr MnO membrane released from epitaxial strain
Takahito Takeda, Takuma Arai, Kohei Yamagami +4
Recent studies have shown that the magnetic properties of the ferromagnetic perovskite oxide La Sr MnO (LSMO) grown on an SrTiO3 (STO) substrate, such as its ma…
Allotropic transition of Dirac semimetal α-Sn to superconductor β-Sn induced by irradiation of focused ion beam
Kohdai Inagaki, Keita Ishihara, Tomoki Hotta +9
Diamond-type structure allotrope α-Sn is attracting much attention as a topological Dirac semimetal (TDS). In this study, we demonstrate that α-Sn undergoes a phase transition to a…
Ferromagnetism induced by hybridization of Fe 3d orbitals with ligand InSb bands in n-type ferromagnetic semiconductor (In,Fe)Sb
Ryo Okano, Tomoki Hotta, Takahito Takeda +8
Fe-doped III-V ferromagnetic semiconductor (FMS) (In,Fe)Sb is a promising material for spintronic device applications because of the n-type carrier conduction and the ferromagnetis…
Development of magnetism in Fe-doped magnetic semiconductors: Resonant photoemission and x-ray magnetic circular dichroism studies of (Ga,Fe)As
Takahito Takeda, Shoya Sakamoto, Le Duc Anh +8
Fe-doped III-V ferromagnetic semiconductors (FMSs) such as (In,Fe)As, (Ga,Fe)Sb, (In,Fe)Sb, and (Al,Fe)Sb are promising materials for spintronic device applications because of the…
Room-temperature spin injection and spin-to-charge conversion in a ferromagnetic semiconductor / topological insulator heterostructure
Shobhit Goel, Nguyen Huynh Duy Khang, Le Duc Anh +2
Spin injection using ferromagnetic semiconductors at room temperature is a building block for the realization of spin-functional semiconductor devices. Nevertheless, this has been…
Growth and characterization of quaternary-alloy ferromagnetic semiconductor (In,Ga,Fe)Sb
Tomoki Hotta, Kengo Takase, Kosuke Takiguchi +3
We study the growth and properties of quaternary-alloy ferromagnetic semiconductor (FMS) (In0.94-x,Gax,Fe0.06)Sb (x = 5% - 30%, Fe concentration is fixed at 6%) grown by low temper…
Elemental topological Dirac semimetal α-Sn with high quantum mobility
Le Duc Anh, Kengo Takase, Takahiro Chiba +3
α-Sn with a diamond-type crystal structure provides an ideal avenue to investigate novel topological properties owing to its rich diagram of topological phases and simple elemental…
Minority-Spin Impurity Band in n-Type (In,Fe)As: A Materials Perspective for Ferromagnetic Semiconductors
Masaki Kobayashi, Le Duc Anh, Jan Minar +9
Fully understanding the properties of n-type ferromagnetic semiconductors (FMSs), complementary to the mainstream p-type ones, is a challenging goal in semiconductor spintronics be…
Alternation of Magnetic Anisotropy Accompanied by Metal-Insulator Transition in Strained Ultrathin Manganite Heterostructures
Masaki Kobayashi, Le Duc Anh, Masahiro Suzuki +6
Fundamental understanding of interfacial magnetic properties in ferromagnetic heterostructures is essential to utilize ferromagnetic materials for spintronic device applications. I…
Evolution of the Fe-3 impurity band state as the origin of high Curie temperature in p-type ferromagnetic semiconductor (Ga,Fe)Sb
Takahito Takeda, Shoya Sakamoto, Kohsei Araki +8
(Ga,Fe)Sb is one of the promising ferromagnetic semiconductors for spintronic device applications because its Curie temperature () is above 300 K when the Fe…
Current-in-plane spin-valve magnetoresistance in ferromagnetic semiconductor (Ga,Fe)Sb heterostructures with high Curie temperature
Kengo Takase, Le Duc Anh, Kosuke Takiguchi +1
We demonstrate spin-valve magnetoresistance with a current-in-plane (CIP) configuration in (Ga,Fe)Sb / InAs (thickness nm) / (Ga,Fe)Sb trilayer heterostructures,…
Ferromagnetism and giant magnetoresistance in zinc-blende FeAs monolayers embedded in semiconductor structures
Le Duc Anh, Taiki Hayakawa, Yuji Nakagawa +6
Material structures containing tetrahedral FeAs bonds, depending on their density and geometrical distribution, can host several competing quantum ground states ranging from superc…
Hybridization between the ligand band and Fe-3 orbitals in the p-type ferromagnetic semiconductor (Ga,Fe)Sb
Takahito Takeda, Masahiro Suzuki, Le Duc Anh +13
(Ga,Fe)Sb is a promising ferromagnetic semiconductor for practical spintronic device applications because its Curie temperature () is above room temperature. However, th…
In-plane to perpendicular magnetic anisotropy switching in heavily-Fe-doped ferromagnetic semiconductor (Ga,Fe)Sb with high Curie temperature
Shobhit Goel, Le Duc Anh, Nguyen Thanh Tu +2
We report switching of magnetic anisotropy (MA) from in-plane to perpendicular with increasing the thickness d of a (001)-oriented ferromagnetic-semiconductor (FMS) (Ga0.7,Fe0.3)Sb…
Efficient intrinsic spin-to-charge current conversion in an all-epitaxial single-crystal perovskite-oxide heterostructure of La0.67Sr0.33MnO3/LaAlO3/SrTiO3
Shinobu Ohya, Daisei Araki, Le Duc Anh +4
We demonstrate efficient intrinsic spin-to-charge current conversion in a two-dimensional electron gas using an all-epitaxial single-crystal heterostructure of LaSrMnO3/ LaAlO3 (LA…
Ultra-low-power orbital-controlled magnetization switching using a ferromagnetic oxide interface
Le Duc Anh, Takashi Yamashita, Hiroki Yamasaki +5
A major challenge in spin-based electronics is reducing power consumption for magnetization switching of ferromagnets, which is being implemented by injecting a large spin-polarize…
Heavily Fe-doped n-type ferromagnetic semiconductor (In,Fe)Sb with high Curie temperature and large magnetic anisotropy
Nguyen Thanh Tu, Pham Nam Hai, Le Duc Anh +1
We present high-temperature ferromagnetism and large magnetic anisotropy in heavily Fe-doped n-type ferromagnetic semiconductor (In1-x,Fex)Sb (x = 20 - 35%) thin films grown by low…
Hidden peculiar magnetic anisotropy at the interface in a ferromagnetic perovskite-oxide heterostructure
Le Duc Anh, Noboru Okamoto, Munetoshi Seki +3
Understanding and controlling the interfacial magnetic properties of ferromagnetic thin films are crucial for spintronic device applications. However, using conventional magnetomet…
A new class of ferromagnetic semiconductors with high Curie temperatures
Nguyen Thanh Tu, Pham Nam Hai, Le Duc Anh +1
Ferromagnetic semiconductors (FMSs), which have the properties and functionalities of both semiconductors and ferromagnets, provide fascinating opportunities for basic research in…
Observation of spontaneous spin-splitting in the band structure of an n-type zinc-blende ferromagnetic semiconductor
Le Duc Anh, Pham Nam Hai, Masaaki Tanaka
Large spin splitting in the conduction band (CB) and valence band (VB) of ferromagnetic semiconductors (FMSs), predicted by the influential mean-field Zener model[1,2] and assumed…