有機集積回路は、電子タグやヘルスケアーセンサーと組み合わせてリアルタイムの信号を処理するA/Dコンバーターとしての応用が期待されている。しかしながら、単体トランジスタのサイズは未だサブmm程度で集積密度は依然として低い。そのため、素子の微細化だけに依存しない有機集積回路の...

We demonstrated selective-area growth of r-SnO2 on a SiO2-masked r-TiO2 (110) substrate. The heteroepitaxy on a window started with a Vol...

The yield-point phenomena in ferrite–pearlite duplex steels were investigated using multiscale computational simulations. In these multis...

Variable-stiffness materials have a unique ability to change their stiffness reversibly in response to external stimuli or conditions. Ho...

To enhance semiconductor efficiency, it is imperative to develop a die-bonding material possessing exceptional thermal conductivity and s...

The coconut crab has black protrusions on the tops of its walking legs and claw fingers. In addition, there are regularly aligned small b...

We investigated the optical properties of single crystals of one-dimensional van der Waals crystal Ta4SiTe4, which exhibited high thermoe...

The tunnel magnetoresistance (TMR) is one of the most important spintronic phenomena but its reduction at finite temperature is a severe ...

スピネルバリアを用いた磁気トンネル接合Fe/MgAl2O4/Feの電圧特性を理論的に解析し、その結果をFe/MgO/Feの電圧特性と比較した。その結果、Fe/MgAl2O4/Feでは電極でのバンド折りたたみが起こるため、磁気抵抗比の電圧耐性がFe/MgO/Feよりも高くなる...

We study theoretically the anisotropic magneto-Peltier effect, which was recently demonstrated experimen-tally. A first-principles-based ...

半導体バリアCuInSe2、CuGaSe2を持つ磁気トンネル接合の伝導特性を第一原理計算によって調べた。その結果、両トンネル接合でΔ1状態の波動関数のコヒーレントトンネル現象が生じ、高いMR比が得られることが分かった。

We study interfacial magnetocrystalline anisotropies in various Fe/semiconductor heterostructures by means of first-principles calculatio...

We theoretically study the tunnel magnetoresistance (TMR) effect in (111)-oriented junctions Co/MgO/Co(111) and Ni/MgO/Ni(111). The Co-ba...

We study the tunnel magnetoresistance (TMR) effect and magnetocrystalline anisotropy in a series of magnetic tunnel junctions (MTJs) with...

磁気ヘテロ接合Fe/MgAl2O4の界面の磁気異方性について第一原理計算に基づいた解析を行った。垂直磁気異方性が得られることがわかり、その起源についても微視的な解析によって理解が得られた。また、より大きな垂直磁気異方性を得る手段として界面への重元素挿入の可能性についても検討した。

2つの半導体バリアを持つ磁気トンネル接合（Fe/CuInSe2/Fe及びFe/CuGaSe2/Fe）の磁気伝導特性に関し、第一原理計算に基づく詳細な解析を行った。本論文ではその結果について議論を行った。

We theoretically study the tunnel magnetoresistance (TMR) effect in novel (111)-oriented magnetic tunnel junctions (MTJs) with SrTiO3 bar...

In this work, the purpose of the current study is to understand the effects of time per layer and part geometry on microcracking behavior...

A new perovskite KOsO3 has been stabilized under high-pressure and high-temperature conditions. It is cubic at 500 K (Pm-3m) and undergoe...

Changes in the hydrogen-induced Schottky barrier height (ΦB) of Pt/GaN rectifiers fabricated on free-standing GaN substrates were investi...

Here, electronic-grade phosphorus-doped n-type diamond epilayer with anatomically flat surface based on step-flow nucleation mode is fabr...

The application of semiconductor nanocrystals containing cadmium, lead, selenium and mercury as constituent elements is strictly limited ...

Chemical substitution efficiently optimizes the physical properties of Heusler compounds, especially their anomalous transport properties...

To understand the correlation between process, structures, and properties in laser powder bed fusion (L-PBF), it is essential to use nume...

The development of superconducting joining technology for reacted magnesium diboride (MgB2) conductors remains a critical challenge for t...

Amorphous oxide semiconductors (AOSs) with low off-currents and processing temperatures offer promising alternative materials for next-ge...

We improved the critical current (Ic) of the superconducting joint between the Bi2223 tapes by introducing the two-step sintering process...

We developed and operated a persistent current (PC) mode 9.39 T (400 MHz for 1H NMR) LTS/Bi-2223 NMR magnet using a Bi-2223 insert coil w...

Superconducting magnets used in applications such as magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR) require signif...

Large direct currents can flow through REBa2Cu3O7−δ (REBCO) wires without energy loss because of zero resistance. However, they suffer fr...

The effect of intermediate layer densification on the critical current (Ic) of Bi-2223 superconducting joints was quantitatively studied....

A low circuit resistance is required for a superconducting magnet operated in persistent mode using superconducting joints. We performed ...

We clarify the relationship between the angular dependence of critical current in a Bi-2223 superconducting joint and grain alignment in ...

Low resistance and high critical current are prerequisites for superconducting joints used in persistent-mode magnets. Herein, we use a j...

Various defects are produced during laser powder bed fusion (L-PBF) process, and can affect the quality of the fabricated part. Past stud...

To successfully engineer large-sized tissues, establishing vascular structures is essential for providing oxygen, nutrients, growth facto...

Many artificial molecular machines have been synthesized, and various functions have been expressed by changing their molecular conformat...

Visualizing spin-polarized electronic states aids in designing and developing new materials and devices. Spin-resolved photoemission spec...

A symmetry-protected bound state in the continuum (BIC) is one of the bases for high-resolution photonic refractometric sensors that rely...

The electrostatic potential distribution in materials and devices plays an important role in controlling the behaviors of charge carriers...

2D materials such as transition metal dichalcogenides (TMDCs) are a new class of atomic-layer materials possessing optical and electric p...

We have developed an open-source software called CrySPY, which is a crystal structure prediction tool written in Python 3, ...

Solute segregation significantly affects material properties and is a critical issue in the laser powder-bed fusion (LPBF) additive manuf...

Halide perovskites, in the form of thin films and colloidal nanocrystals, have recently taken semiconductor optoelectronics research by s...

This paper reviews quantitative characterization via transmission electron microscopy (TEM) and its application to interfacial phenomena ...

To investigate the relationship between the partial structures and the stiffness transition in AsxSe1−x glasses, anomalous X-ray scatteri...

Atomic structures of an insulating and hydrophobic zeolite sample of mordenite were measured by high-energy X-ray diffraction, and a pair...

The topology of amorphous materials is an important topic from the perspective of structural ordering. Compression, one of the sintering ...

Understanding disordered structure is difficult due to insufficient information in experimental data. Here we overcome this issue by usin...

We have shown that mainly due to the differences in microstructure and possibly the varying amount of crystalline defects in the samples,...