Valence bond glass state in the 4d1 fcc antiferromagnet Ba2LuMoO6
B -site ordered 4 d 1 and 5 d 1 double perovskites have a number of potential exotic ground states including multipolar order, quantum spin liquids and valence bond glass states. These arise from the complex interactions of spin-orbital entangled J eff = 3/2 pseudospins on the geometrically frustra...
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| Veröffentlicht in: | npj quantum materials 2022-07, Vol.7 (1), Article 74 |
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| creator | Mustonen, O. H. J. Mutch, H. M. Walker, H. C. Baker, P. J. Coomer, F. C. Perry, R. S. Pughe, C. Stenning, G. B. G. Liu, C. Dutton, S. E. Cussen, E. J. |
| description | B
-site ordered 4
d
1
and 5
d
1
double perovskites have a number of potential exotic ground states including multipolar order, quantum spin liquids and valence bond glass states. These arise from the complex interactions of spin-orbital entangled
J
eff
= 3/2 pseudospins on the geometrically frustrated fcc lattice. The 4
d
1
Mo
5+
perovskite Ba
2
YMoO
6
has been suggested to have a valence bond glass ground state. Here we report on the low temperature properties of powder samples of isostructural Ba
2
LuMoO
6
: the only other known cubic 4
d
1
perovskite with one magnetic cation. Our muon spectroscopy experiments show that magnetism in this material remains dynamic down to 60 mK without any spin freezing or magnetic order. A singlet-triplet excitation with a gap of Δ = 28 meV is observed in inelastic neutron scattering. These results are interpreted as a disordered valence bond glass ground state similar to Ba
2
YMoO
6
. Our results highlight the differences of the 4
d
1
double perovskites in comparison to cubic 5
d
1
analogues, which have both magnetic and multipolar order. |
| doi_str_mv | 10.1038/s41535-022-00480-4 |
| format | Article |
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-site ordered 4
d
1
and 5
d
1
double perovskites have a number of potential exotic ground states including multipolar order, quantum spin liquids and valence bond glass states. These arise from the complex interactions of spin-orbital entangled
J
eff
= 3/2 pseudospins on the geometrically frustrated fcc lattice. The 4
d
1
Mo
5+
perovskite Ba
2
YMoO
6
has been suggested to have a valence bond glass ground state. Here we report on the low temperature properties of powder samples of isostructural Ba
2
LuMoO
6
: the only other known cubic 4
d
1
perovskite with one magnetic cation. Our muon spectroscopy experiments show that magnetism in this material remains dynamic down to 60 mK without any spin freezing or magnetic order. A singlet-triplet excitation with a gap of Δ = 28 meV is observed in inelastic neutron scattering. These results are interpreted as a disordered valence bond glass ground state similar to Ba
2
YMoO
6
. Our results highlight the differences of the 4
d
1
double perovskites in comparison to cubic 5
d
1
analogues, which have both magnetic and multipolar order.</description><identifier>ISSN: 2397-4648</identifier><identifier>EISSN: 2397-4648</identifier><identifier>DOI: 10.1038/s41535-022-00480-4</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/301/119/997 ; 639/638/298/920 ; 639/766/119/997 ; Antiferromagnetism ; Atomic energy levels ; Condensed Matter Physics ; Freezing ; Frustrated magnetism ; Ground state ; Inelastic scattering ; Low temperature ; Neutron scattering ; Neutrons ; Perovskites ; Physics ; Physics and Astronomy ; Quantum Physics ; Spin liquid ; Structural Materials ; Surfaces and Interfaces ; Thin Films</subject><ispartof>npj quantum materials, 2022-07, Vol.7 (1), Article 74</ispartof><rights>The Author(s) 2022</rights><rights>The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2084-c4192079a4a683ef577c59deec9e4d6f6289eb05a7e5d75e2dd315dee6c23bce3</citedby><cites>FETCH-LOGICAL-c2084-c4192079a4a683ef577c59deec9e4d6f6289eb05a7e5d75e2dd315dee6c23bce3</cites><orcidid>0000-0002-1681-5269 ; 0000-0003-0984-5504 ; 0000-0002-2899-6888 ; 0000-0002-1825-2201 ; 0000-0002-3509-951X ; 0000-0002-2306-2648 ; 0000-0002-7859-5388</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1038/s41535-022-00480-4$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://doi.org/10.1038/s41535-022-00480-4$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,27924,27925,41120,42189,51576</link.rule.ids></links><search><creatorcontrib>Mustonen, O. H. J.</creatorcontrib><creatorcontrib>Mutch, H. M.</creatorcontrib><creatorcontrib>Walker, H. C.</creatorcontrib><creatorcontrib>Baker, P. J.</creatorcontrib><creatorcontrib>Coomer, F. C.</creatorcontrib><creatorcontrib>Perry, R. S.</creatorcontrib><creatorcontrib>Pughe, C.</creatorcontrib><creatorcontrib>Stenning, G. B. G.</creatorcontrib><creatorcontrib>Liu, C.</creatorcontrib><creatorcontrib>Dutton, S. E.</creatorcontrib><creatorcontrib>Cussen, E. J.</creatorcontrib><title>Valence bond glass state in the 4d1 fcc antiferromagnet Ba2LuMoO6</title><title>npj quantum materials</title><addtitle>npj Quantum Mater</addtitle><description>B
-site ordered 4
d
1
and 5
d
1
double perovskites have a number of potential exotic ground states including multipolar order, quantum spin liquids and valence bond glass states. These arise from the complex interactions of spin-orbital entangled
J
eff
= 3/2 pseudospins on the geometrically frustrated fcc lattice. The 4
d
1
Mo
5+
perovskite Ba
2
YMoO
6
has been suggested to have a valence bond glass ground state. Here we report on the low temperature properties of powder samples of isostructural Ba
2
LuMoO
6
: the only other known cubic 4
d
1
perovskite with one magnetic cation. Our muon spectroscopy experiments show that magnetism in this material remains dynamic down to 60 mK without any spin freezing or magnetic order. A singlet-triplet excitation with a gap of Δ = 28 meV is observed in inelastic neutron scattering. These results are interpreted as a disordered valence bond glass ground state similar to Ba
2
YMoO
6
. Our results highlight the differences of the 4
d
1
double perovskites in comparison to cubic 5
d
1
analogues, which have both magnetic and multipolar order.</description><subject>639/301/119/997</subject><subject>639/638/298/920</subject><subject>639/766/119/997</subject><subject>Antiferromagnetism</subject><subject>Atomic energy levels</subject><subject>Condensed Matter Physics</subject><subject>Freezing</subject><subject>Frustrated magnetism</subject><subject>Ground state</subject><subject>Inelastic scattering</subject><subject>Low temperature</subject><subject>Neutron scattering</subject><subject>Neutrons</subject><subject>Perovskites</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Physics</subject><subject>Spin liquid</subject><subject>Structural Materials</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><issn>2397-4648</issn><issn>2397-4648</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kE1LAzEQhoMoWGr_gKeA52i-P461qBUqvajXkCaztaXN1mR78N-7uoKePM3APO878CB0yeg1o8LeVMmUUIRyTiiVlhJ5gkZcOEOklvb0z36OJrVuKaWcMSu1HqHpa9hBjoBXbU54vQu14tqFDvAm4-4NsEwMNzHikLtNA6W0-7DO0OHbwBfHp3apL9BZE3YVJj9zjF7u755nc7JYPjzOpgsSObWSRMkcp8YFGbQV0ChjonIJIDqQSTeaWwcrqoIBlYwCnpJgqr_ryMUqghijq6H3UNr3I9TOb9tjyf1Lz7VTgjGjdU_xgYqlrbVA4w9lsw_lwzPqv2z5wZbvbflvW172ITGEag_nNZTf6n9Sn-_oaw0</recordid><startdate>20220727</startdate><enddate>20220727</enddate><creator>Mustonen, O. 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H. J.</au><au>Mutch, H. M.</au><au>Walker, H. C.</au><au>Baker, P. J.</au><au>Coomer, F. C.</au><au>Perry, R. S.</au><au>Pughe, C.</au><au>Stenning, G. B. G.</au><au>Liu, C.</au><au>Dutton, S. E.</au><au>Cussen, E. J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Valence bond glass state in the 4d1 fcc antiferromagnet Ba2LuMoO6</atitle><jtitle>npj quantum materials</jtitle><stitle>npj Quantum Mater</stitle><date>2022-07-27</date><risdate>2022</risdate><volume>7</volume><issue>1</issue><artnum>74</artnum><issn>2397-4648</issn><eissn>2397-4648</eissn><abstract>B
-site ordered 4
d
1
and 5
d
1
double perovskites have a number of potential exotic ground states including multipolar order, quantum spin liquids and valence bond glass states. These arise from the complex interactions of spin-orbital entangled
J
eff
= 3/2 pseudospins on the geometrically frustrated fcc lattice. The 4
d
1
Mo
5+
perovskite Ba
2
YMoO
6
has been suggested to have a valence bond glass ground state. Here we report on the low temperature properties of powder samples of isostructural Ba
2
LuMoO
6
: the only other known cubic 4
d
1
perovskite with one magnetic cation. Our muon spectroscopy experiments show that magnetism in this material remains dynamic down to 60 mK without any spin freezing or magnetic order. A singlet-triplet excitation with a gap of Δ = 28 meV is observed in inelastic neutron scattering. These results are interpreted as a disordered valence bond glass ground state similar to Ba
2
YMoO
6
. Our results highlight the differences of the 4
d
1
double perovskites in comparison to cubic 5
d
1
analogues, which have both magnetic and multipolar order.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><doi>10.1038/s41535-022-00480-4</doi><orcidid>https://orcid.org/0000-0002-1681-5269</orcidid><orcidid>https://orcid.org/0000-0003-0984-5504</orcidid><orcidid>https://orcid.org/0000-0002-2899-6888</orcidid><orcidid>https://orcid.org/0000-0002-1825-2201</orcidid><orcidid>https://orcid.org/0000-0002-3509-951X</orcidid><orcidid>https://orcid.org/0000-0002-2306-2648</orcidid><orcidid>https://orcid.org/0000-0002-7859-5388</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 639/301/119/997 639/638/298/920 639/766/119/997 Antiferromagnetism Atomic energy levels Condensed Matter Physics Freezing Frustrated magnetism Ground state Inelastic scattering Low temperature Neutron scattering Neutrons Perovskites Physics Physics and Astronomy Quantum Physics Spin liquid Structural Materials Surfaces and Interfaces Thin Films |
| title | Valence bond glass state in the 4d1 fcc antiferromagnet Ba2LuMoO6 |
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