1. Highly sensitive magnetic heterojunction device comprising substrate of single crystal (001) LaAlO3 (LAO), ferromagnetic La0.66Sr0.34MnO3 layer (LSMO) and ferrimagnetic CoFe2O4 (CFO) layer.
2. The device as claimed in claim 1, wherein said device is capable of giant resistive switching (RS) at the interfaces of LSMO and CFO at 2 to 100 mT magnetic field at temperature in the range of 25 to 30\xb0 C. for alternative high density non-volatile memory application.
3. The heterojunction device as claimed in claim 1, wherein the thickness of the substrate is 450 to 550 \u03bcm.
4. The heterojunction device as claimed in claim 1, wherein the thickness of the LSMO layer is in the range of 100 to 130 nm.
5. The heterojunction device as claimed in claim 1, wherein the thickness of the CFO is in the range of 2 to 6 nm.
6. The heterojunction device as claimed in claim 1, wherein device exhibits resistive switching voltage in the range of 0.7 to 2V for 2 to 6 nm CFO in the presence of 72 mT magnetic field at temperature in the range of 25 to 30\xb0 C.
7. The heterojunction device as claimed in claim 1, wherein the device is magneto restrictive and senses magnetic field.
8. A process for the preparation of heterojunction device, comprising the steps of:
a. depositing 100 to 130 nm (La0.66Sr0.34MnO3) LSMO film on 450 to 550 \u03bcm single crystal (001) LaAO3 (LAO) substrate by Pulse layer deposition (PLD) at about 700\xb0 C. in about 100 mTorr oxygen pressure;
b. masking part of the film as obtained in step (a) followed by growing of 15 to 25 nm LSMO onto the masked surface by PLD at about 700\xb0 C. in about 100 mTorr oxygen pressure to form a thin film; and
c. depositing 2 to 6 \u03bcm film of CFO on to the LSMO film as obtained in step
(b) by PLD at about 700\xb0 C. in about 100 mTorr oxygen pressure followed by cooling till temperature in the range of 25 to 30\xb0 C. at oxygen pressure of about 400 torr;
9. A method of detecting a magnetic field using CFOLSMO comprises;
a. providing Highly sensitive magnetic heterojunction device as claimed in claim 1;
b. exposing the device to a magnetic field so as to detect the magnetic field.
10. A method of inducing a magnetic field using CFOLSMO comprises;
a. providing Highly sensitive magnetic heterojunction device as claimed in claim 1;
b. Exposing the device at an electrical current to induce a magnetic field.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An image processor comprising:
an image input unit configured to input a multiple image in which images of a subject are superimposed on each other;
an inter-superimposed-image deformation acquisition unit configured to acquire deformation information between superimposed images included in the multiple image input through the image input unit;
an image deformation unit configured to generate at least two deformed images by performing deformation processing with respect to the multiple image input through the image input unit at least twice to be geometrically deformed based on the deformation information between superimposed images acquired by the inter-superimposed-image deformation acquisition unit;
a signal intensity relationship acquisition unit configured to acquire signal intensity relationship information indicative of a relationship between signal intensities of the superimposed images included in the multiple image input through the image input unit; and
a signal processing unit configured to perform addition processing of the at least two deformed images generated by the deformation processing by using the signal intensity relationship information acquired by the signal intensity relationship acquisition unit.
2. The image processor according to claim 1, wherein the image deformation unit performs translational displacement processing for an image as the deformation processing.
3. The image processor according to claim 1, wherein the image deformation unit performs deformation combining scaling processing with translational displacement processing for an image as the deformation processing.
4. The image processor according to claim 1, wherein the inter-superimposed-image deformation acquisition unit acquires the deformation information between superimposed images by utilizing a previously obtained displacement direction of displacement between the superimposed images on the multiple image.
5. The image processor according to claim 4, wherein the image deformation unit performs deformation processing along the previously obtained displacement direction of displacement between the superimposed images with respect to the multiple image.
6. The image processor according to claim 1, wherein the inter-superimposed-image deformation acquisition unit, the image deformation unit, the signal intensity relationship acquisition unit, and the signal processing unit execute processing in accordance with each partial region as a part of the multiple image, respectively.
7. The image processor according to claim 1, wherein the inter-superimposed-image deformation acquisition unit, the image deformation unit, the signal intensity relationship acquisition unit, and the signal processing unit execute processing in accordance with each partial region as a part of the multiple image respectively, and integrating results of processing carried out in accordance with each partial region enables generating a restored image of the multiple image.
8. An image acquisition apparatus comprising:
an image acquisition optical system configured to form an image of luminous flux of a subject;
a multiple image formation unit configured to form images of the subject in a superimposed manner in the image acquisition optical system;
an image signal generation unit configured to convert light from the image acquisition optical system into an electrical signal and generate an image signal from the converted electrical signal;
an inter-superimposed-image deformation acquisition unit configured to acquire deformation information between superimposed images included in a multiple image having at least two images generated by the image acquisition optical system, the multiple image formation unit, and the image signal generation unit in a superimposed manner;
an image deformation unit configured to generate at least two deformed images by performing deformation processing with respect to the multiple image at least twice to be geometrically deformed based on the deformation information between superimposed images acquired by the inter-superimposed-image deformation acquisition unit;
a signal intensity relationship acquisition unit configured to acquire signal intensity relationship information indicative of a relationship between signal intensities of the superimposed signals included in the multiple image; and
a signal processing unit configured to perform addition processing of the at least two deformed images generated by the deformation processing by using the signal intensity relationship information acquired by the signal intensity relationship acquisition unit.
9. The image acquisition apparatus according to claim 8, wherein the image deformation unit performs translational displacement processing for an image as the deformation processing.
10. The image acquisition apparatus according to claim 8, wherein the image deformation unit performs deformation combining scaling processing with translational displacement processing for an image as the deformation processing.
11. The image acquisition apparatus according to claim 8, wherein the inter-superimposed-image deformation acquisition unit acquires the deformation information between superimposed images by utilizing a previously obtained displacement direction of displacement between the superimposed images on the multiple image.
12. The image acquisition apparatus according to claim 11, wherein the image deformation unit performs deformation processing along the previously obtained displacement direction of displacement between the superimposed images with respect to the multiple image.
13. The image acquisition apparatus according to claim 8, wherein the inter-superimposed-image deformation acquisition unit, the image deformation unit, the signal intensity relationship acquisition unit, and the signal processing unit execute processing in accordance with each partial region as a part of the multiple image, respectively.
14. The image acquisition apparatus according to claim 8, wherein the inter-superimposed-image deformation acquisition unit, the image deformation unit, the signal intensity relationship acquisition unit, and the signal processing unit execute processing in accordance with each partial region as a part of the multiple image respectively, and integrating results of processing carried out in accordance with each partial region enables generating a restored image of the entire image.
15. A storage medium storing an image processing program allowing a computer to execute the following steps:
performing input processing of a multiple image in which images of a subject are superimposed on each other;
acquiring deformation information between superimposed images included in the input multiple image;
generating at least two deformed images by performing deformation processing with respect to the input multiple image at least twice to be geometrically deformed based on the acquired deformation information between superimposed images;
acquiring signal intensity relationship information indicative of a relationship between signal intensities of the superimposed images included in the input multiple image; and
performing addition processing of the at least two deformed images generated from the deformation processing by using the acquired signal intensity relationship information.
16. An image processing method comprising:
performing input processing of a multiple image in which images of a subject are superimposed on each other;
acquiring deformation information between superimposed images included in the input multiple image;
generating at least two deformed images by performing deformation processing with respect to the input multiple image at least twice to be geometrically deformed based on the acquired deformation information between superimposed images;
acquiring signal intensity relationship information indicative of a relationship between signal intensities of the superimposed images included in the input multiple image; and
generating a restored image in which images of the subject are not superimposed on each other by adding the at least two deformed images generated from the deformation processing based on the acquired signal intensity relationship information.