dx2−y2-Density Wave and dx2−y2-wave Superconducting Gap on the Extended Hubbard Model on a Square Lattice: Approach to Finite Temperature Properties
We investigate the finite temperature properties of the extended Hubbard model with a nearest-neighbor Coulomb repulsion on the square lattice. Solving the self-consistent equations obtained using our mean-field theory [J. Phys. Soc. Jpn. 88, 084706 (2019)] numerically, we obtain three-dimensional p...
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| Veröffentlicht in: | Journal of the Physical Society of Japan 2020-12, Vol.89 (12), p.1 |
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| creator | Hirose, Yuhei Oguchi, Akihide Fukumoto, Yoshiyuki |
| description | We investigate the finite temperature properties of the extended Hubbard model with a nearest-neighbor Coulomb repulsion on the square lattice. Solving the self-consistent equations obtained using our mean-field theory [J. Phys. Soc. Jpn. 88, 084706 (2019)] numerically, we obtain three-dimensional phase diagrams of the dx2−y2-density wave (DDW) and dx2−y2-wave superconducting (DSC) order parameters according to temperature and hole concentrations. The obtained phase diagrams show three distinctive regions: underdoped, optimal, and overdoped. Within the underdoped region, the ratios of the order parameters at absolute zero temperature to the critical temperatures are in approximate agreement with the experimental results of cuprate high Tc superconductors. The optimal region exhibits a unique reentrant phenomenon regarding the hole concentration. In the overdoped region, the DDW disappears and the DSC becomes normal. |
| doi_str_mv | 10.7566/JPSJ.89.124713 |
| format | Article |
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Solving the self-consistent equations obtained using our mean-field theory [J. Phys. Soc. Jpn. 88, 084706 (2019)] numerically, we obtain three-dimensional phase diagrams of the dx2−y2-density wave (DDW) and dx2−y2-wave superconducting (DSC) order parameters according to temperature and hole concentrations. The obtained phase diagrams show three distinctive regions: underdoped, optimal, and overdoped. Within the underdoped region, the ratios of the order parameters at absolute zero temperature to the critical temperatures are in approximate agreement with the experimental results of cuprate high Tc superconductors. The optimal region exhibits a unique reentrant phenomenon regarding the hole concentration. In the overdoped region, the DDW disappears and the DSC becomes normal.</description><identifier>ISSN: 0031-9015</identifier><identifier>EISSN: 1347-4073</identifier><identifier>DOI: 10.7566/JPSJ.89.124713</identifier><language>eng</language><publisher>Tokyo: The Physical Society of Japan</publisher><subject>Absolute zero ; Density ; Mathematical models ; Mean field theory ; Order parameters ; Phase diagrams ; Superconductivity ; Superconductors ; Temperature</subject><ispartof>Journal of the Physical Society of Japan, 2020-12, Vol.89 (12), p.1</ispartof><rights>Copyright The Physical Society of Japan Dec 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Hirose, Yuhei</creatorcontrib><creatorcontrib>Oguchi, Akihide</creatorcontrib><creatorcontrib>Fukumoto, Yoshiyuki</creatorcontrib><title>dx2−y2-Density Wave and dx2−y2-wave Superconducting Gap on the Extended Hubbard Model on a Square Lattice: Approach to Finite Temperature Properties</title><title>Journal of the Physical Society of Japan</title><description>We investigate the finite temperature properties of the extended Hubbard model with a nearest-neighbor Coulomb repulsion on the square lattice. Solving the self-consistent equations obtained using our mean-field theory [J. Phys. Soc. Jpn. 88, 084706 (2019)] numerically, we obtain three-dimensional phase diagrams of the dx2−y2-density wave (DDW) and dx2−y2-wave superconducting (DSC) order parameters according to temperature and hole concentrations. The obtained phase diagrams show three distinctive regions: underdoped, optimal, and overdoped. Within the underdoped region, the ratios of the order parameters at absolute zero temperature to the critical temperatures are in approximate agreement with the experimental results of cuprate high Tc superconductors. The optimal region exhibits a unique reentrant phenomenon regarding the hole concentration. In the overdoped region, the DDW disappears and the DSC becomes normal.</description><subject>Absolute zero</subject><subject>Density</subject><subject>Mathematical models</subject><subject>Mean field theory</subject><subject>Order parameters</subject><subject>Phase diagrams</subject><subject>Superconductivity</subject><subject>Superconductors</subject><subject>Temperature</subject><issn>0031-9015</issn><issn>1347-4073</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9UEtOwzAUtBBIlMKWtSXWKf4kccyuKv1QFVGplVhWjv1MUxUnTRxob8CaFefjJLgCsXqjN6OZ0SB0TUlPJGl6O50vpr1M9iiLBeUnqEN5LKKYCH6KOoRwGklCk3N00TQbQlgSdB30Zfbs--PzwKJ7cE3hD_hZvQFWzuB_5v34WbQV1Lp0ptW-cC94rCpcOuzXgId7D86AwZM2z1Vt8GNpYHtkFV7sWlUDninvCw13uF9Vdan0GvsSjwpXeMBLeA3WyrdBN6_LgH0BzSU6s2rbwNXf7aLlaLgcTKLZ0_hh0J9Flcx8JIVMExCWK0JFbogQmbA0lZm0MSdKWpNrYq2OiUyEksyamGvLNPCUUQOMd9HNr22otWuh8atN2dYuJK7CjGE1zpOE_wDh-mve</recordid><startdate>20201215</startdate><enddate>20201215</enddate><creator>Hirose, Yuhei</creator><creator>Oguchi, Akihide</creator><creator>Fukumoto, Yoshiyuki</creator><general>The Physical Society of Japan</general><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20201215</creationdate><title>dx2−y2-Density Wave and dx2−y2-wave Superconducting Gap on the Extended Hubbard Model on a Square Lattice: Approach to Finite Temperature Properties</title><author>Hirose, Yuhei ; Oguchi, Akihide ; Fukumoto, Yoshiyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p98t-97965e7f3a017bd07787f16989f430a9fdbc0ffc40957a92fd43cf2ce3621de23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Absolute zero</topic><topic>Density</topic><topic>Mathematical models</topic><topic>Mean field theory</topic><topic>Order parameters</topic><topic>Phase diagrams</topic><topic>Superconductivity</topic><topic>Superconductors</topic><topic>Temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hirose, Yuhei</creatorcontrib><creatorcontrib>Oguchi, Akihide</creatorcontrib><creatorcontrib>Fukumoto, Yoshiyuki</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the Physical Society of Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hirose, Yuhei</au><au>Oguchi, Akihide</au><au>Fukumoto, Yoshiyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>dx2−y2-Density Wave and dx2−y2-wave Superconducting Gap on the Extended Hubbard Model on a Square Lattice: Approach to Finite Temperature Properties</atitle><jtitle>Journal of the Physical Society of Japan</jtitle><date>2020-12-15</date><risdate>2020</risdate><volume>89</volume><issue>12</issue><spage>1</spage><pages>1-</pages><issn>0031-9015</issn><eissn>1347-4073</eissn><abstract>We investigate the finite temperature properties of the extended Hubbard model with a nearest-neighbor Coulomb repulsion on the square lattice. Solving the self-consistent equations obtained using our mean-field theory [J. Phys. Soc. Jpn. 88, 084706 (2019)] numerically, we obtain three-dimensional phase diagrams of the dx2−y2-density wave (DDW) and dx2−y2-wave superconducting (DSC) order parameters according to temperature and hole concentrations. The obtained phase diagrams show three distinctive regions: underdoped, optimal, and overdoped. Within the underdoped region, the ratios of the order parameters at absolute zero temperature to the critical temperatures are in approximate agreement with the experimental results of cuprate high Tc superconductors. The optimal region exhibits a unique reentrant phenomenon regarding the hole concentration. In the overdoped region, the DDW disappears and the DSC becomes normal.</abstract><cop>Tokyo</cop><pub>The Physical Society of Japan</pub><doi>10.7566/JPSJ.89.124713</doi></addata></record> |
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| ispartof | Journal of the Physical Society of Japan, 2020-12, Vol.89 (12), p.1 |
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| source | Alma/SFX Local Collection |
| subjects | Absolute zero Density Mathematical models Mean field theory Order parameters Phase diagrams Superconductivity Superconductors Temperature |
| title | dx2−y2-Density Wave and dx2−y2-wave Superconducting Gap on the Extended Hubbard Model on a Square Lattice: Approach to Finite Temperature Properties |
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