The peculiarities of the phase diagram of heavy fermion metal CeCoIn5
Identifieur interne : 000222 ( Russie/Analysis ); précédent : 000221; suivant : 000223The peculiarities of the phase diagram of heavy fermion metal CeCoIn5
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Abstract
We analyze the low temperature experimental magnetic field-temperature H-T phase diagram of CeCoIn5. We demonstrate that its main features can be well explained within Landau quasiparticle picture incorporating the fact that quasiparticles form so-called fermion-condensate (FC) state emerging behind the fermion condensation quantum phase transition (FCQPT). We show that near FCQPT, the fluctuations are strongly suppressed while FC by itself is "protected" from above fluctuations by the first order phase transition. We demonstrate that the electronic system of CeCoIn5 can be shifted from the ordered towards disordered side of FCQPT by the application of magnetic field therefore giving a unique possibility to study the relationship between quasiparticles and non-Fermi-liquid behavior.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">The peculiarities of the phase diagram of heavy fermion metal CeCoIn<sub>5</sub></title><author><name sortKey="Shaginyan, V R" uniqKey="Shaginyan V">V. R. Shaginyan</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Petersburg Nuclear Physics Institute</s1><s2>Gatchina 188300</s2><s3>RUS</s3><sZ>1 aut.</sZ></inist:fA14><country>Russie</country><wicri:noRegion>Petersburg Nuclear Physics Institute</wicri:noRegion></affiliation></author><author><name sortKey="Stephanovich, V A" uniqKey="Stephanovich V">V. A. Stephanovich</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Opole University, Institute of Mathematics and Informatics</s1><s2>Opole 45-052</s2><s3>POL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Pologne</country><wicri:noRegion>Opole 45-052</wicri:noRegion></affiliation></author><author><name sortKey="Kirichenko, E V" uniqKey="Kirichenko E">E. V. Kirichenko</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Opole University, Institute of Mathematics and Informatics</s1><s2>Opole 45-052</s2><s3>POL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Pologne</country><wicri:noRegion>Opole 45-052</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">07-0368606</idno><date when="2007">2007</date><idno type="stanalyst">PASCAL 07-0368606 INIST</idno><idno type="RBID">Pascal:07-0368606</idno><idno type="wicri:Area/Main/Corpus">007691</idno><idno type="wicri:Area/Main/Repository">006E70</idno><idno type="wicri:Area/Russie/Extraction">000222</idno></publicationStmt><seriesStmt><idno type="ISSN">0925-8388</idno><title level="j" type="abbreviated">J. alloys compd.</title><title level="j" type="main">Journal of alloys and compounds</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cerium alloys</term><term>Cobalt alloys</term><term>Fluctuations</term><term>Heavy fermions</term><term>Indium alloys</term><term>Magnetic field effects</term><term>Non Fermi liquid</term><term>Order-disorder transformations</term><term>Phase diagrams</term><term>Quantum phase transition</term><term>Quasiparticles</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Diagramme phase</term><term>Effet champ magnétique</term><term>Quasiparticule</term><term>Transition phase quantique</term><term>Fluctuation</term><term>Transformation ordre désordre</term><term>Liquide non Fermi</term><term>Fermion lourd</term><term>Cérium alliage</term><term>Cobalt alliage</term><term>Indium alliage</term><term>CeCoIn5</term><term>7127</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We analyze the low temperature experimental magnetic field-temperature H-T phase diagram of CeCoIn<sub>5</sub>. We demonstrate that its main features can be well explained within Landau quasiparticle picture incorporating the fact that quasiparticles form so-called fermion-condensate (FC) state emerging behind the fermion condensation quantum phase transition (FCQPT). We show that near FCQPT, the fluctuations are strongly suppressed while FC by itself is "protected" from above fluctuations by the first order phase transition. We demonstrate that the electronic system of CeCoIn<sub>5</sub> can be shifted from the ordered towards disordered side of FCQPT by the application of magnetic field therefore giving a unique possibility to study the relationship between quasiparticles and non-Fermi-liquid behavior.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0925-8388</s0></fA01><fA03 i2="1"><s0>J. alloys compd.</s0></fA03><fA05><s2>442</s2></fA05><fA06><s2>1-2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>The peculiarities of the phase diagram of heavy fermion metal CeCoIn<sub>5</sub></s1></fA08><fA09 i1="01" i2="1" l="ENG"><s1>Proceedings of the 15th International Conference on Solid Compounds of Transition Elements, July 15-20, 2006, Kraków, Poland</s1></fA09><fA11 i1="01" i2="1"><s1>SHAGINYAN (V. R.)</s1></fA11><fA11 i1="02" i2="1"><s1>STEPHANOVICH (V. A.)</s1></fA11><fA11 i1="03" i2="1"><s1>KIRICHENKO (E. V.)</s1></fA11><fA12 i1="01" i2="1"><s1>BARAN (Stanisław)</s1><s9>ed.</s9></fA12><fA12 i1="02" i2="1"><s1>ŁATKA (Kazimierz)</s1><s9>ed.</s9></fA12><fA12 i1="03" i2="1"><s1>JAWORSKA-GOŁAB (Teresa)</s1><s9>ed.</s9></fA12><fA12 i1="04" i2="1"><s1>SZYTUŁA (Andrzej)</s1><s9>ed.</s9></fA12><fA12 i1="05" i2="1"><s1>SUSKI (Wojciech)</s1><s9>ed.</s9></fA12><fA12 i1="06" i2="1"><s1>TOBOŁA (Janusz)</s1><s9>ed.</s9></fA12><fA14 i1="01"><s1>Petersburg Nuclear Physics Institute</s1><s2>Gatchina 188300</s2><s3>RUS</s3><sZ>1 aut.</sZ></fA14><fA14 i1="02"><s1>Opole University, Institute of Mathematics and Informatics</s1><s2>Opole 45-052</s2><s3>POL</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></fA14><fA15 i1="01"><s1>Marian Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4</s1><s2>30-059 Kraków</s2><s3>POL</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></fA15><fA15 i1="02"><s1>W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410</s1><s2>50-950 Wrocław</s2><s3>POL</s3><sZ>5 aut.</sZ></fA15><fA15 i1="03"><s1>Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30</s1><s2>30-059 Cracow</s2><s3>POL</s3><sZ>6 aut.</sZ></fA15><fA18 i1="01" i2="1"><s1>Jagiellonian University. Institute of Physics</s1><s3>POL</s3><s9>org-cong.</s9></fA18><fA20><s1>119-121</s1></fA20><fA21><s1>2007</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>1151</s2><s5>354000149863360260</s5></fA43><fA44><s0>0000</s0><s1>© 2007 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>15 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>07-0368606</s0></fA47><fA60><s1>P</s1><s2>C</s2></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of alloys and compounds</s0></fA64><fA66 i1="01"><s0>CHE</s0></fA66><fC01 i1="01" l="ENG"><s0>We analyze the low temperature experimental magnetic field-temperature H-T phase diagram of CeCoIn<sub>5</sub>. We demonstrate that its main features can be well explained within Landau quasiparticle picture incorporating the fact that quasiparticles form so-called fermion-condensate (FC) state emerging behind the fermion condensation quantum phase transition (FCQPT). We show that near FCQPT, the fluctuations are strongly suppressed while FC by itself is "protected" from above fluctuations by the first order phase transition. We demonstrate that the electronic system of CeCoIn<sub>5</sub> can be shifted from the ordered towards disordered side of FCQPT by the application of magnetic field therefore giving a unique possibility to study the relationship between quasiparticles and non-Fermi-liquid behavior.</s0></fC01><fC02 i1="01" i2="3"><s0>001B70A27</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Diagramme phase</s0><s5>02</s5></fC03><fC03 i1="01" i2="3" l="ENG"><s0>Phase diagrams</s0><s5>02</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Effet champ magnétique</s0><s5>03</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Magnetic field effects</s0><s5>03</s5></fC03><fC03 i1="03" i2="3" l="FRE"><s0>Quasiparticule</s0><s5>04</s5></fC03><fC03 i1="03" i2="3" l="ENG"><s0>Quasiparticles</s0><s5>04</s5></fC03><fC03 i1="04" i2="3" l="FRE"><s0>Transition phase quantique</s0><s5>06</s5></fC03><fC03 i1="04" i2="3" l="ENG"><s0>Quantum phase transition</s0><s5>06</s5></fC03><fC03 i1="05" i2="3" l="FRE"><s0>Fluctuation</s0><s5>07</s5></fC03><fC03 i1="05" i2="3" l="ENG"><s0>Fluctuations</s0><s5>07</s5></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Transformation ordre désordre</s0><s5>09</s5></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Order-disorder transformations</s0><s5>09</s5></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Liquide non Fermi</s0><s5>10</s5></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Non Fermi liquid</s0><s5>10</s5></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Fermion lourd</s0><s5>15</s5></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Heavy fermions</s0><s5>15</s5></fC03><fC03 i1="09" i2="3" l="FRE"><s0>Cérium alliage</s0><s5>16</s5></fC03><fC03 i1="09" i2="3" l="ENG"><s0>Cerium alloys</s0><s5>16</s5></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Cobalt alliage</s0><s5>17</s5></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Cobalt alloys</s0><s5>17</s5></fC03><fC03 i1="11" i2="3" l="FRE"><s0>Indium alliage</s0><s5>18</s5></fC03><fC03 i1="11" i2="3" l="ENG"><s0>Indium alloys</s0><s5>18</s5></fC03><fC03 i1="12" i2="3" l="FRE"><s0>CeCoIn5</s0><s4>INC</s4><s5>52</s5></fC03><fC03 i1="13" i2="3" l="FRE"><s0>7127</s0><s4>INC</s4><s5>60</s5></fC03><fN21><s1>239</s1></fN21></pA><pR><fA30 i1="01" i2="1" l="ENG"><s1>International Conference on Solid Compounds of Transition Elements</s1><s2>15</s2><s3>Kraków POL</s3><s4>2006-07-15</s4></fA30></pR></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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