POSITION DETECTION DEVICE
First Claim
1. A position detection device, comprising a thermoelectric conversion portion including a magnetic layer having magnetization and a plurality of electrodes which are made of a material having spin-orbit interaction and are formed on the magnetic layer so as to extend in a direction intersecting a magnetization direction of the magnetic layer,wherein the thermoelectric conversion portion modulates an effective temperature in the magnetic layer so as to induce a spin Seebeck effect when an arbitrary location on a layer-surface of the magnetic layer is heated, and generates a voltage corresponding to a heated position from the plurality of electrodes as position information.
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Accused Products
Abstract
A position detection device includes a thermoelectric conversion portion which includes a magnetic layer and a plurality of electrodes. The magnetic layer has magnetization. The plurality of electrodes are formed of a material having spin-orbit interaction, and are formed on the magnetic layer so as to extend in a direction which intersects with the magnetization direction of the magnetic layer. When an arbitrary location on the layer-surface of the magnetic layer is heated, the thermoelectric conversion portion modulates the effective temperature in the magnetic layer and induces a spin Seebeck effect. As a result, the thermoelectric conversion portion generates, from the plurality of electrodes, a voltage corresponding to the heated position as position information.
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Citations
10 Claims
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1. A position detection device, comprising a thermoelectric conversion portion including a magnetic layer having magnetization and a plurality of electrodes which are made of a material having spin-orbit interaction and are formed on the magnetic layer so as to extend in a direction intersecting a magnetization direction of the magnetic layer,
wherein the thermoelectric conversion portion modulates an effective temperature in the magnetic layer so as to induce a spin Seebeck effect when an arbitrary location on a layer-surface of the magnetic layer is heated, and generates a voltage corresponding to a heated position from the plurality of electrodes as position information.
Specification