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Magnetic and structural phase transi...

The University of Wisconsin - Madison.

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Magnetic and structural phase transitions in ruthenocuprates: ruthenium-strontium-europium-cerium-copper oxide.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Magnetic and structural phase transitions in ruthenocuprates: ruthenium-strontium-europium-cerium-copper oxide./
Author:	Hirai, Yoshinao.
Description:	131 p.
Notes:	Adviser: Marshall Onellion.
Contained By:	Dissertation Abstracts International68-08B.
Subject:	Physics, Condensed Matter. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3278940
ISBN:	9780549201199

Magnetic and structural phase transitions in ruthenocuprates: ruthenium-strontium-europium-cerium-copper oxide.
Hirai, Yoshinao.

Magnetic and structural phase transitions in ruthenocuprates: ruthenium-strontium-europium-cerium-copper oxide. - 131 p.

Adviser: Marshall Onellion.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2007.

This thesis establishes that both the RuO2 and CuO2 planes are metallic for stoichiometries exhibiting superconducting and magnetic phases. The implication is that itinerant carriers that 'carry' the superconductivity also 'carry' the long-range magnetic order.

ISBN: 9780549201199Subjects--Topical Terms:

1018743
Physics, Condensed Matter.

Magnetic and structural phase transitions in ruthenocuprates: ruthenium-strontium-europium-cerium-copper oxide.
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008 100804s2007 ||||||||||||||||| ||eng d
020 $a 9780549201199
035 $a (UMI)AAI3278940
035 $a AAI3278940
040 $a UMI $c UMI
100 1 $a Hirai, Yoshinao. $3 1036166
245 1 0 $a Magnetic and structural phase transitions in ruthenocuprates: ruthenium-strontium-europium-cerium-copper oxide.
300 $a 131 p.
500 $a Adviser: Marshall Onellion.
500 $a Source: Dissertation Abstracts International, Volume: 68-08, Section: B, page: 5304.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 2007.
520 $a This thesis establishes that both the RuO2 and CuO2 planes are metallic for stoichiometries exhibiting superconducting and magnetic phases. The implication is that itinerant carriers that 'carry' the superconductivity also 'carry' the long-range magnetic order.
520 $a Superconductivity can be destroyed in two qualitatively different ways, first by removing carriers, similar to traditional cuprates, and also by doping with hydrogen. Hydrogen doping leads to a structural phase separation. The phase separation destroys superconductivity at carrier concentrations that would otherwise be sufficient to retain superconductivity. Both methods increase the magnetic ordering temperature, but phase separation is the stronger effect. This leads to the seeming paradox that although superconductivity and magnetic order can coexist, the same changes that destroy superconductivity enhance magnetic order.
520 $a A proposal, suggested by the data but not conclusively established, is that superconductivity is destroyed by a magnetic spin flop transition. Data are presented that establish the presence of a spin flop transition, which accompanies the destruction of superconductivity.
590 $a School code: 0262.
650 4 $a Physics, Condensed Matter. $3 1018743
650 4 $a Physics, Electricity and Magnetism. $3 1019535
690 $a 0607
690 $a 0611
710 2 $a The University of Wisconsin - Madison. $3 626640
773 0 $t Dissertation Abstracts International $g 68-08B.
790 $a 0262
790 1 0 $a Onellion, Marshall, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3278940