In solid-state physics, the t-J model is a model first derived in 1977 from the Hubbard model by to explain antiferromagnetic properties of the Mott insulators and taking into account experimental results about the strength of electron-electron repulsion in this materials. The model consider the materials as a lattice with atoms in the knots (sites) and just one or two external electrons moving among them (internal electrons are not considered), like in the basic Hubbard model. That difference is in supposing electrons being strongly-correlated, that means electrons are very sensible to reciprocal coulombic repulsion, and so are more constrained to avoid occupying lattice's sites already occupied by another electron. In the basic Hubbard model, the repulsion, indicated with U, can be smal
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| - نموذج t-J (ar)
- Modèle t-J (fr)
- Model t-J (pl)
- T-J model (en)
- T-J模型 (zh)
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| - تم اشتقاق نموذج t-J لأول مرة في عام 1977 من نموذج هاببرد عن طريق Józef Spałek. يصف النموذج الانظمة إلكترونية شديدة-الارتباط. يتم استخدامه لحساب حالات الموصلية الفائقة في درجات الحرارة العالية في المغناطيسات الحديدية المضاضة. t-J هاملتوني هو: (ar)
- Le modèle t-J décrit un isolant antiferromagnétique dopé en trous. Les sites occupés par un électron portent un moment magnétique, tandis que les sites inoccupés sont non-magnétiques. Ce modèle a été introduit dans le cadre de la théorie des supraconducteurs à haute température critique, qui sont des isolants antiferromagnétiques lorsqu'ils ne sont pas dopés, et deviennent supraconducteurs par dopage. (fr)
- Model t-J – model wyprowadzony z modelu Hubbarda w roku 1977 przez prof. Józefa Spałka. Model opisuje silnie skorelowane układy elektronowe. Jest powszechnie stosowany do opisu stanów nadprzewodnictwa wysokotemperaturowego w domieszkowanych antyferromagnetykach. Hamiltonian modelu t-J ma postać gdzie: – operatory kreacji i anihilacji, – kierunek spinu, – całka wymiany – oddziaływanie coulombowskie, – spiny w -tym i -tym węźle. (pl)
- t-J模型於1977年首次被物理學家Józef Spałek從赫巴德模型推導出來，是描述的一個統計模型。它常被用來研究參雜電洞的反铁磁性材料中的高溫超導性質。 t-J模型的哈密頓算符定義如下： - 電子的產生和湮滅算符 - 電子自旋的z軸分量 - 耦合強度 - 庫侖排斥作用的強度 - 在第i格點和第j格點的自旋算符 (zh)
- In solid-state physics, the t-J model is a model first derived in 1977 from the Hubbard model by to explain antiferromagnetic properties of the Mott insulators and taking into account experimental results about the strength of electron-electron repulsion in this materials. The model consider the materials as a lattice with atoms in the knots (sites) and just one or two external electrons moving among them (internal electrons are not considered), like in the basic Hubbard model. That difference is in supposing electrons being strongly-correlated, that means electrons are very sensible to reciprocal coulombic repulsion, and so are more constrained to avoid occupying lattice's sites already occupied by another electron. In the basic Hubbard model, the repulsion, indicated with U, can be smal (en)
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| - تم اشتقاق نموذج t-J لأول مرة في عام 1977 من نموذج هاببرد عن طريق Józef Spałek. يصف النموذج الانظمة إلكترونية شديدة-الارتباط. يتم استخدامه لحساب حالات الموصلية الفائقة في درجات الحرارة العالية في المغناطيسات الحديدية المضاضة. t-J هاملتوني هو: (ar)
- Le modèle t-J décrit un isolant antiferromagnétique dopé en trous. Les sites occupés par un électron portent un moment magnétique, tandis que les sites inoccupés sont non-magnétiques. Ce modèle a été introduit dans le cadre de la théorie des supraconducteurs à haute température critique, qui sont des isolants antiferromagnétiques lorsqu'ils ne sont pas dopés, et deviennent supraconducteurs par dopage. (fr)
- In solid-state physics, the t-J model is a model first derived in 1977 from the Hubbard model by to explain antiferromagnetic properties of the Mott insulators and taking into account experimental results about the strength of electron-electron repulsion in this materials. The model consider the materials as a lattice with atoms in the knots (sites) and just one or two external electrons moving among them (internal electrons are not considered), like in the basic Hubbard model. That difference is in supposing electrons being strongly-correlated, that means electrons are very sensible to reciprocal coulombic repulsion, and so are more constrained to avoid occupying lattice's sites already occupied by another electron. In the basic Hubbard model, the repulsion, indicated with U, can be small and also null, and electrons are freer to jump (hopping, parametrized by t as transfer or tunnel) from one site to another. In the t-J model, instead of U, there is the parameter J, function of the ratio t/U, so the name. It is used as a possible model to explain high temperature superconductivity in doped antiferromagnets, in the hypothesis of strong coupling between electrons. (en)
- Model t-J – model wyprowadzony z modelu Hubbarda w roku 1977 przez prof. Józefa Spałka. Model opisuje silnie skorelowane układy elektronowe. Jest powszechnie stosowany do opisu stanów nadprzewodnictwa wysokotemperaturowego w domieszkowanych antyferromagnetykach. Hamiltonian modelu t-J ma postać gdzie: – operatory kreacji i anihilacji, – kierunek spinu, – całka wymiany – oddziaływanie coulombowskie, – spiny w -tym i -tym węźle. (pl)
- t-J模型於1977年首次被物理學家Józef Spałek從赫巴德模型推導出來，是描述的一個統計模型。它常被用來研究參雜電洞的反铁磁性材料中的高溫超導性質。 t-J模型的哈密頓算符定義如下： - 電子的產生和湮滅算符 - 電子自旋的z軸分量 - 耦合強度 - 庫侖排斥作用的強度 - 在第i格點和第j格點的自旋算符 (zh)
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