Evidence of a first-order phase transition to metallic hydrogen
The insulator-metal transition in hydrogen is one of the most outstanding problems in condensed-matter physics. The high-pressure metallic phase is now predicted to be liquid atomic from the low-temperature limit with the system in the ground state to very high temperatures. We have conducted measur...
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| Veröffentlicht in: | Physical review. B 2016-04, Vol.93 (15), Article 155128 |
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| container_title | Physical review. B |
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| creator | Zaghoo, Mohamed Salamat, Ashkan Silvera, Isaac F. |
| description | The insulator-metal transition in hydrogen is one of the most outstanding problems in condensed-matter physics. The high-pressure metallic phase is now predicted to be liquid atomic from the low-temperature limit with the system in the ground state to very high temperatures. We have conducted measurements of optical properties of hot dense hydrogen in the region of 1.1-1.7 Mbars and up to 2200 K. We present evidence supportive of a first-order phase transition accompanied by changes in transmittance and reflectance, characteristic of a metal. The phase line of this transition has a negative slope in agreement with theories of the so-called plasma phase transition. |
| doi_str_mv | 10.1103/PhysRevB.93.155128 |
| format | Article |
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The phase line of this transition has a negative slope in agreement with theories of the so-called plasma phase transition.</description><subject>Condensed matter</subject><subject>Hydrogen</subject><subject>Liquids</subject><subject>Metallic hydrogen</subject><subject>Optical properties</subject><subject>Phase transformations</subject><subject>Reflectivity</subject><subject>Transmittance</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNo9kMFLwzAchYMoOOb-AU_Bk5fOpEnT5CQ6NhUGiug5pOkvNtI1M8kG---dVD29d_h48D6ELimZU0rYzUt3SK-wv58rNqdVRUt5giYlF6pQSqjT_16RczRL6ZMQQgVRNVETdLvc-xYGCzg4bLDzMeUixBYi3nYmAc7RDMlnHwacA95ANn3vLe4ObQwfMFygM2f6BLPfnKL31fJt8Visnx-eFnfrwnIhclEbA6IGYwmrlDO2LRurqJGu5aWUAigwzkxFqZLcNVa6hlegmBKcMwDbsCm6GndDyl4n6zPYzoZhAJs1LXktS3mErkdoG8PXDlLWG58s9L0ZIOySpvL4u1akYke0HFEbQ0oRnN5GvzHxoCnRP1b1n1WtmB6tsm8oR2xY</recordid><startdate>20160415</startdate><enddate>20160415</enddate><creator>Zaghoo, Mohamed</creator><creator>Salamat, Ashkan</creator><creator>Silvera, Isaac F.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20160415</creationdate><title>Evidence of a first-order phase transition to metallic hydrogen</title><author>Zaghoo, Mohamed ; Salamat, Ashkan ; Silvera, Isaac F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c466t-7aae67eac0359facd2bc91a8fd42886e1e343a511984fbc8fb45e9396443eecb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Condensed matter</topic><topic>Hydrogen</topic><topic>Liquids</topic><topic>Metallic hydrogen</topic><topic>Optical properties</topic><topic>Phase transformations</topic><topic>Reflectivity</topic><topic>Transmittance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zaghoo, Mohamed</creatorcontrib><creatorcontrib>Salamat, Ashkan</creatorcontrib><creatorcontrib>Silvera, Isaac F.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Physical review. 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| ispartof | Physical review. B, 2016-04, Vol.93 (15), Article 155128 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | Condensed matter Hydrogen Liquids Metallic hydrogen Optical properties Phase transformations Reflectivity Transmittance |
| title | Evidence of a first-order phase transition to metallic hydrogen |
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