Magnetooptic element exploiting spin chirality

A magnetooptic element whose size is essentially that of a lattice, namely several angstroms in size of magnetic material and which at the same time has its exhibiting magnetooptic effect detectable is provided along with a magnetooptic disk, a memory device and a magnetooptical picture or image display with a storage capacity of several terabits per square inch or more, each using such a magnetooptic element. The magnetooptic element utilizes a gigantic effective magnetic filed based on a spin chirality formed by geometrically configuring the spin orientation and crystallographic structure of a certain solid material. The solid material exhibiting the spin chirality may be such as a pyrochlore type oxide compound whose chemical composition is represented by chemical formula: A₂B₂O₇ where A is a rare-earth element and B is a transition metal, or a pyrochlore type oxide compound whose chemical composition is represented by chemical formula: (A_1-x Подробнее

Magnetooptic element exploiting spin chirality

A magnetooptic element whose size is essentially that of a lattice, namely several angstroms in size of magnetic material and which at the same time has its exhibiting magnetooptic effect detectable is provided along with a magnetooptic disk, a memory device and a magnetooptical picture or image display with a storage capacity of several terabits per square inch or more, each using such a magnetooptic element. The magnetooptic element utilizes a gigantic effective magnetic filed based on a spin chirality formed by geometrically configuring the spin orientation and crystallographic structure of a certain solid material. The solid material exhibiting the spin chirality may be such as a pyrochlore type oxide compound whose chemical composition is represented by chemical formula: A2B2O7 where A is a rare-earth element and B is a transition metal, or a pyrochlore type oxide compound whose chemical composition is represented by chemical formula: (A1−xCx)2B2O7 where A is a rare-earth element, ...

Solar Cell

A solar cell 1 has a p-n junction structure between a first solid material layer 3 comprising an insulator or a semiconductor and a second solid material layer 5 comprising an insulator or a semiconductor of a type different from the type of the first solid material layer 3, in which structure a Mott insulator or a Mott semiconductor is used as a solid material of at least one of the layers.

Compound and Thermoelectric Conversion Material

A compound containing Sn, Te and Mn, and further containing either one or both of Sb and Bi.

Compound and thermoelectric conversion material

The present invention relates to a compound containing at least germanium, tellurium, bismuth, copper, antimony and silver as constituent elements.

Compound, thermoelectric conversion material, and method for producing compound

The present invention relates to a compound containing at least germanium, tellurium, bismuth and copper as constituent elements, wherein the longest axis of ubiquitous bismuth crystals and copper crystals is less than 2.0 μm.

Compound and Thermoelectric Conversion Material

A compound containing Sn, Te and Mg, and further containing either one or both of Sb and Bi.

Magnetic element, skyrmion memory, solid-state electronic device, data-storage device, data processing and communication device

To provide a magnetic element which can generate a skyrmion, and a skyrmion memory which applies the magnetic element or the like. To provide a magnetic element with a chiral magnet for generating a skyrmion, the chiral magnet is made of a magnetic material having a β-Mn type crystal structure. Also, to provide a magnetic element with a chiral magnet for generating a skyrmion, the chiral magnet is made of a magnetic material having an Au4Al type crystal structure.

Compound, thermoelectric conversion material, and method for producing compound

The present invention relates to a compound containing at least germanium, tellurium, bismuth and copper as constituent elements, wherein the longest axis of ubiquitous bismuth crystals and copper crystals is less than 2.0 μm.

Magnetic element, skyrmion memory, solid-state electronic device, data-storage device, data processing and communication device

To provide a magnetic element with a chiral magnet for generating a skyrmion, the chiral magnet is made of a magnetic material having a β-Mn type crystal structure. Also, to provide a magnetic element with a chiral magnet for generating a skyrmion, the chiral magnet is made of a magnetic material having an Au4Al type crystal structure.

COMPOUND AND THERMOELECTRIC CONVERSION MATERIAL

The present invention relates to a compound containing at least germanium, tellurium, bismuth, copper, antimony and silver as constituent elements. 1. A compound comprising at least germanium , tellurium , bismuth , copper , antimony and silver as constituent elements.2. The compound according to claim 1 , having a carrier density of not more than 1.0×10cm.3. The compound according to claim 1 , represented by a chemical formula GeBiCuSbAgTe (wherein −0.05≤a≤0.10 claim 1 , 0≤b≤0.10 claim 1 , 0≤c≤0.10 claim 1 , 0≤d≤0.20 claim 1 , and 0≤e≤0.20).4. The compound according to claim 1 , wherein an intensity ratio I(Ge)/I(GeTe) between a maximum intensity I(GeTe) of an XRD peak attributable to germanium telluride and a maximum intensity I(Ge) of an XRD peak attributable to germanium metal is not more than 0.025.5. The compound according to claim 1 , wherein a longest axis of bismuth claim 1 , copper claim 1 , antimony or silver claim 1 , which are ubiquitous within the compound claim 1 , is less than 2.0 μm.6. A thermoelectric conversion material comprising the compound according to . The present invention relates to a compound and a thermoelectric conversion material.Priority is claimed on Japanese Patent Application No. 2016-073745, filed Mar. 31, 2016, and Japanese Patent Application No. 2016-177049, filed Sep. 9, 2016, the contents of which are incorporated herein by reference.Thermoelectric conversion devices that utilize the Seebeck effect are able to convert thermal energy into electrical energy. In other words, by using a thermoelectric conversion device, electric power can be obtained directly from thermal energy. For example, by using a thermoelectric conversion device, the waste heat from the engine of an automobile can be recovered, and a portion of that waste heat can then be converted to electric power. For example, waste heat from a factory can be recovered, and a portion of that waste heat converted to electric power.In recent years, from the viewpoints of ...

COMPOUND, THERMOELECTRIC CONVERSION MATERIAL, AND METHOD FOR PRODUCING COMPOUND

The present invention relates to a compound containing at least germanium, tellurium, bismuth and copper as constituent elements, wherein the longest axis of ubiquitous bismuth crystals and copper crystals is less than 2.0 μm. 1. A compound comprising at least germanium , tellurium , bismuth and copper as constituent elements , wherein a longest axis of ubiquitous bismuth crystals and copper crystals is less than 2.0 μm.2. A compound comprising at least germanium , tellurium , bismuth and copper as constituent elements , wherein an intensity ratio I(Ge)/I(GeTe) between a maximum intensity I(GeTe) of an XRD peak attributable to germanium telluride and a maximum intensity I(Ge) of an XRD peak attributable to germanium metal is not more than 0.025.3. The compound according to claim 2 , wherein a longest axis of bismuth crystals and copper crystals claim 2 , which are ubiquitous within the compound claim 2 , is less than 2.0 μm.4. The compound according to claim 1 , having a rhombohedral crystal structure derived from germanium telluride.5. The compound according to claim 1 , represented by a chemical formula GeBiCuTe (wherein −0.05≤a≤0.10 claim 1 , 0 Подробнее

MAGNETIC ELEMENT, SKYRMION MEMORY, SOLID-STATE ELECTRONIC DEVICE, DATA-STORAGE DEVICE, DATA PROCESSING AND COMMUNICATION DEVICE

To provide a magnetic element which can generate a skyrmion, and a skyrmion memory which applies the magnetic element or the like. 1. A magnetic element with a chiral magnet for generating a skyrmion , wherein{'sub': '4', 'the chiral magnet is made of a magnetic material having a β-Mn type crystal structure or an AuAl type crystal structure.'}2. The magnetic element according to claim 1 , wherein{'sub': x', 'y', 'z, 'the magnetic material having the β-Mn type crystal structure is made of a chemical formula ABCusing multiple elements A, B, and C, and satisfies x+y+z=20 and 0≦x, y, z≦20.'}3. The magnetic element according to claim 1 , wherein{'sub': 1-d', 'd', 'x1', 'y1', 'z1', '1', '1', '1', '1', '1', '1', 'x2', 'y2', 'z2', '2', '2', '2', '2', '2', '2, 'the magnetic material having the β-Mn type crystal structure is a mixed crystal MN(0≦d≦1) between a material M which is made of a chemical formula ABCusing multiple elements A, B, and C, and satisfies x+y+z=20 and 0≦x, y, z≦20, and a material N which is made of a chemical formula A′B′C′using multiple elements A′, B′, and C′, and satisfies x+y+z=20 and 0 Подробнее

Magnetic element, skyrmion memory, skyrmion memory-equipped solid-state electronic device, data recording device, data processing device and communication device

Compound and thermoelectric conversion material

A compound containing Sn, Te and Mg, and further containing either one or both of Sb and Bi.

Compound and thermoelectric conversion material

A compound containing Sn, Te and Mn, and further containing either one or both of Sb and Bi.