Spin-orbiton and quantum criticality in FeSc2 S4

Mittelstädt L.; Schmidt Michael; Wang Zhe; Mayr Franz; Tsurkan Vladimir; Lunkenheimer Peter; Ish Daniel; Balents Leon; Deisenhofer Joachim; Loidl Alois

Conţinutul numărului revistei

Articolul precedent

Articolul urmator

260

SM ISO690:2012

MITTELSTÄDT, L., SCHMIDT, Michael, WANG, Zhe, MAYR, Franz, TSURKAN, Vladimir, LUNKENHEIMER, Peter, ISH, Daniel, BALENTS, Leon, DEISENHOFER, Joachim, LOIDL, Alois. Spin-orbiton and quantum criticality in FeSc2 S4. In: Physical Review B - Condensed Matter and Materials Physics, 2015, vol. 91, nr. 12, p. 0. ISSN 1098-0121. DOI: https://doi.org/10.1103/PhysRevB.91.125112

EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core

Physical Review B - Condensed Matter and Materials Physics

Volumul 91, Numărul 12 / 2015 / ISSN 1098-0121 /ISSNe 1550-235X

Spin-orbiton and quantum criticality in FeSc2 S4

DOI:https://doi.org/10.1103/PhysRevB.91.125112

Pag. 0-0

Mittelstädt L.¹, Schmidt Michael¹, Wang Zhe¹, Mayr Franz¹, Tsurkan Vladimir¹², Lunkenheimer Peter¹, Ish Daniel³, Balents Leon⁴, Deisenhofer Joachim¹, Loidl Alois¹

¹ Center for Electronic Correlations and Magnetism, University of Augsburg,
² Institute of Applied Physics, Academy of Sciences of Moldova,
³ University of California, Santa Barbara,
⁴ Kavli Institute for Theoretical Physics, University of California, Santa Barbara

Disponibil în IBN: 19 mai 2023

Rezumat

In FeSc2S4 spin-orbital exchange competes with strong spin-orbit coupling, suppressing long-range spin and orbital order and, hence, this material represents one of the rare examples of a spin-orbital liquid ground state. Moreover, it is close to a quantum-critical point separating the ordered and disordered regimes. Using terahertz and far-infrared spectroscopy we study low-lying excitations in FeSc2S4 and provide clear evidence for a spin-orbiton, an excitation of strongly entangled spins and orbitals. It becomes particularly well pronounced upon cooling, when advancing deep into the quantum-critical regime. Moreover, indications of an underlying structureless excitation continuum are found, a possible signature of quantum criticality. © 2015 American Physical Society.

Cerif XML Export

<?xml version='1.0' encoding='utf-8'?>
<CERIF xmlns='urn:xmlns:org:eurocris:cerif-1.5-1' xsi:schemaLocation='urn:xmlns:org:eurocris:cerif-1.5-1 http://www.eurocris.org/Uploads/Web%20pages/CERIF-1.5/CERIF_1.5_1.xsd' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' release='1.5' date='2012-10-07' sourceDatabase='Output Profile'>
<cfResPubl>
<cfResPublId>ibn-ResPubl-181206</cfResPublId>
<cfResPublDate>2015-03-03</cfResPublDate>
<cfIssue>12</cfIssue>
<cfISSN>1098-0121</cfISSN>
<cfURI>https://ibn.idsi.md/ro/vizualizare_articol/181206</cfURI>
<cfTitle cfLangCode='EN' cfTrans='o'>Spin-orbiton and quantum criticality in FeSc2 S4</cfTitle>
<cfAbstr cfLangCode='EN' cfTrans='o'><p>In FeSc2S4 spin-orbital exchange competes with strong spin-orbit coupling, suppressing long-range spin and orbital order and, hence, this material represents one of the rare examples of a spin-orbital liquid ground state. Moreover, it is close to a quantum-critical point separating the ordered and disordered regimes. Using terahertz and far-infrared spectroscopy we study low-lying excitations in FeSc2S4 and provide clear evidence for a spin-orbiton, an excitation of strongly entangled spins and orbitals. It becomes particularly well pronounced upon cooling, when advancing deep into the quantum-critical regime. Moreover, indications of an underlying structureless excitation continuum are found, a possible signature of quantum criticality. &copy; 2015 American Physical Society.</p></cfAbstr>
<cfResPubl_Class>
<cfClassId>eda2d9e9-34c5-11e1-b86c-0800200c9a66</cfClassId>
<cfClassSchemeId>759af938-34ae-11e1-b86c-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfResPubl_Class>
<cfResPubl_Class>
<cfClassId>e601872f-4b7e-4d88-929f-7df027b226c9</cfClassId>
<cfClassSchemeId>40e90e2f-446d-460a-98e5-5dce57550c48</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfResPubl_Class>
<cfPers_ResPubl>
<cfPersId>ibn-person-108294</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-69304</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-17494</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-59219</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-1111</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-14539</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-108295</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-108299</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-21997</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfPers_ResPubl>
<cfPersId>ibn-person-18264</cfPersId>
<cfClassId>49815870-1cfe-11e1-8bc2-0800200c9a66</cfClassId>
<cfClassSchemeId>b7135ad0-1d00-11e1-8bc2-0800200c9a66</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
</cfPers_ResPubl>
<cfFedId>
<cfFedIdId>ibn-doi-181206</cfFedIdId>
<cfFedId>10.1103/PhysRevB.91.125112</cfFedId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFedId_Class>
<cfClassId>31d222b4-11e0-434b-b5ae-088119c51189</cfClassId>
<cfClassSchemeId>bccb3266-689d-4740-a039-c96594b4d916</cfClassSchemeId>
</cfFedId_Class>
<cfFedId_Srv>
<cfSrvId>5123451</cfSrvId>
<cfClassId>eda2b2e2-34c5-11e1-b86c-0800200c9a66</cfClassId>
<cfClassSchemeId>5a270628-f593-4ff4-a44a-95660c76e182</cfClassSchemeId>
</cfFedId_Srv>
</cfFedId>
</cfResPubl>
<cfPers>
<cfPersId>ibn-Pers-108294</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-108294-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Mittelstädt</cfFamilyNames>
<cfFirstNames>L.</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-69304</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-69304-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Schmidt</cfFamilyNames>
<cfFirstNames>Michael</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-17494</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-17494-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Wang</cfFamilyNames>
<cfFirstNames>Zhe</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-59219</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-59219-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Mayr</cfFamilyNames>
<cfFirstNames>Franz</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-1111</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-1111-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Tsurkan</cfFamilyNames>
<cfFirstNames>Vladimir</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-14539</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-14539-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Lunkenheimer</cfFamilyNames>
<cfFirstNames>Peter</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-108295</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-108295-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Ish</cfFamilyNames>
<cfFirstNames>Daniel</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-108299</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-108299-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Balents</cfFamilyNames>
<cfFirstNames>Leon</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-21997</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-21997-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Deisenhofer</cfFamilyNames>
<cfFirstNames>Joachim</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfPers>
<cfPersId>ibn-Pers-18264</cfPersId>
<cfPersName_Pers>
<cfPersNameId>ibn-PersName-18264-3</cfPersNameId>
<cfClassId>55f90543-d631-42eb-8d47-d8d9266cbb26</cfClassId>
<cfClassSchemeId>7375609d-cfa6-45ce-a803-75de69abe21f</cfClassSchemeId>
<cfStartDate>2015-03-03T24:00:00</cfStartDate>
<cfFamilyNames>Loidl</cfFamilyNames>
<cfFirstNames>Alois</cfFirstNames>
</cfPersName_Pers>
</cfPers>
<cfSrv>
<cfSrvId>5123451</cfSrvId>
<cfName cfLangCode='en' cfTrans='o'>CrossRef DOI prefix service</cfName>
<cfDescr cfLangCode='en' cfTrans='o'>The service of issuing DOI prefixes to publishers</cfDescr>
<cfKeyw cfLangCode='en' cfTrans='o'>persistent identifier; Digital Object Identifier</cfKeyw>
</cfSrv>
</CERIF>