METHOD AND SYSTEM FOR CODING AND READ OUT OF INFORMATION IN A MICROSCOPIC CLUSTER COMPRISING COUPLED FUNCTIONAL ISLANDS
First Claim
1. A method for coding and reading out information in a microscopic cluster formed with coupled functional islands, which comprises the following method steps:
- a) generating the cluster by forming a regular microscopic pattern for locating the functional islands;
b) making use of a physical and/or chemical property of each individual island and making use of the coupling between the functional islands in order to define a plurality of energy levels in each cluster and/or among neighboring clusters;
c) assigning different information to different energy levels of the cluster; and
d) effecting a change of the physical and/or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; and
e) reading out the information.
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Abstract
A method and a system for coding and reading out information in a microscopic cluster formed with coupled functional islands includes: generating the cluster by forming a regular microscopic pattern for locating the functional islands; making use of a physical or chemical property of each individual island and making use of the coupling between the functional islands; assigning different information to different energy levels of the cluster; effecting a change of the physical or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; and reading out the information. These measures allow forming a cluster having distinct energy levels, each being assigned to a distinct information content. These systems pave the way for future devices based on clusters of coupled islands and, armed with the complete knowledge of the energy states, the door is opened for use of these finite multistate clustered structures in future spintronic devices, for example for data storage, memory applications or to perform logic operations.
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Citations
15 Claims
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1. A method for coding and reading out information in a microscopic cluster formed with coupled functional islands, which comprises the following method steps:
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a) generating the cluster by forming a regular microscopic pattern for locating the functional islands; b) making use of a physical and/or chemical property of each individual island and making use of the coupling between the functional islands in order to define a plurality of energy levels in each cluster and/or among neighboring clusters; c) assigning different information to different energy levels of the cluster; and d) effecting a change of the physical and/or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; and e) reading out the information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A microscopic system for coding and reading out information in a microscopic cluster formed of coupled functional islands, comprising:
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a) at least one cluster being formed as a regular microscopic pattern for locating the functional islands, wherein different information is assigned to different energy levels of at least one cluster and/or neighboring clusters in order to define a plurality of energy levels in each cluster and/or among neighboring clusters,; b) each individual functional island having a physical and/or chemical property and the functional islands are coupled; c) a means for effecting a change of the physical and/or chemical property of at least one functional island in order to change the energy level of the cluster to the energy level equivalent to the information content to be coded; d) a means for read out of the information. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification