Epitaxial growth and scanning tunneling microscopy of LiV$_2$O$_4$ thin films on SrTiO$_3$(111)
APL Mater. 11, 021109 (2023) LiV$_2$O$_4$ is a mixed-valent spinel oxide and one of a few transition-metal compounds to host a heavy fermion phase at low temperatures. While numerous experimental studies have attempted to elucidate how its 3$d$ electrons undergo giant mass renormalization, spectrosc...
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| creator | Schweizer, T. F Niemann, U Que, X He, Q Zhou, L Kim, M Takagi, H Huang, D |
| description | APL Mater. 11, 021109 (2023) LiV$_2$O$_4$ is a mixed-valent spinel oxide and one of a few transition-metal
compounds to host a heavy fermion phase at low temperatures. While numerous
experimental studies have attempted to elucidate how its 3$d$ electrons undergo
giant mass renormalization, spectroscopic probes that may provide crucial
hints, such as scanning tunneling microscopy (STM), remain to be applied. A
prerequisite is atomically flat and pristine surfaces, which, in the case of
LiV$_2$O$_4$, are difficult to obtain by cleavage of small, three-dimensional
crystals. We report the epitaxial growth of LiV$_2$O$_4$ thin films with
bulklike properties on SrTiO$_3$(111) via pulsed laser deposition and stable
STM imaging of the LiV$_2$O$_4$(111) surface. The as-grown films were
transferred $ex$ $situ$ to a room-temperature STM, where subsequent annealing
with optional sputtering in ultrahigh vacuum enabled compact islands with
smooth surfaces and a hexagonal 1$\times$1 atomic lattice to be resolved. Our
STM measurements provide insights into growth mechanisms of LiV$_2$O$_4$ on
SrTiO$_3$(111), as well as demonstrate the feasibility of performing
surface-sensitive measurements of this heavy fermion compound. |
| doi_str_mv | 10.48550/arxiv.2302.10852 |
| format | Article |
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compounds to host a heavy fermion phase at low temperatures. While numerous
experimental studies have attempted to elucidate how its 3$d$ electrons undergo
giant mass renormalization, spectroscopic probes that may provide crucial
hints, such as scanning tunneling microscopy (STM), remain to be applied. A
prerequisite is atomically flat and pristine surfaces, which, in the case of
LiV$_2$O$_4$, are difficult to obtain by cleavage of small, three-dimensional
crystals. We report the epitaxial growth of LiV$_2$O$_4$ thin films with
bulklike properties on SrTiO$_3$(111) via pulsed laser deposition and stable
STM imaging of the LiV$_2$O$_4$(111) surface. The as-grown films were
transferred $ex$ $situ$ to a room-temperature STM, where subsequent annealing
with optional sputtering in ultrahigh vacuum enabled compact islands with
smooth surfaces and a hexagonal 1$\times$1 atomic lattice to be resolved. Our
STM measurements provide insights into growth mechanisms of LiV$_2$O$_4$ on
SrTiO$_3$(111), as well as demonstrate the feasibility of performing
surface-sensitive measurements of this heavy fermion compound.</description><identifier>DOI: 10.48550/arxiv.2302.10852</identifier><language>eng</language><subject>Physics - Materials Science ; Physics - Strongly Correlated Electrons</subject><creationdate>2023-02</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2302.10852$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2302.10852$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1063/5.0140576$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Schweizer, T. F</creatorcontrib><creatorcontrib>Niemann, U</creatorcontrib><creatorcontrib>Que, X</creatorcontrib><creatorcontrib>He, Q</creatorcontrib><creatorcontrib>Zhou, L</creatorcontrib><creatorcontrib>Kim, M</creatorcontrib><creatorcontrib>Takagi, H</creatorcontrib><creatorcontrib>Huang, D</creatorcontrib><title>Epitaxial growth and scanning tunneling microscopy of LiV$_2$O$_4$ thin films on SrTiO$_3$(111)</title><description>APL Mater. 11, 021109 (2023) LiV$_2$O$_4$ is a mixed-valent spinel oxide and one of a few transition-metal
compounds to host a heavy fermion phase at low temperatures. While numerous
experimental studies have attempted to elucidate how its 3$d$ electrons undergo
giant mass renormalization, spectroscopic probes that may provide crucial
hints, such as scanning tunneling microscopy (STM), remain to be applied. A
prerequisite is atomically flat and pristine surfaces, which, in the case of
LiV$_2$O$_4$, are difficult to obtain by cleavage of small, three-dimensional
crystals. We report the epitaxial growth of LiV$_2$O$_4$ thin films with
bulklike properties on SrTiO$_3$(111) via pulsed laser deposition and stable
STM imaging of the LiV$_2$O$_4$(111) surface. The as-grown films were
transferred $ex$ $situ$ to a room-temperature STM, where subsequent annealing
with optional sputtering in ultrahigh vacuum enabled compact islands with
smooth surfaces and a hexagonal 1$\times$1 atomic lattice to be resolved. Our
STM measurements provide insights into growth mechanisms of LiV$_2$O$_4$ on
SrTiO$_3$(111), as well as demonstrate the feasibility of performing
surface-sensitive measurements of this heavy fermion compound.</description><subject>Physics - Materials Science</subject><subject>Physics - Strongly Correlated Electrons</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqFzr0OgjAUBeAuDkZ9ACfv0EEHsS2QsBuMg4mDxLVpkJ-blJa0qPD2CnF3OicnZ_gIWXMWREkcs4NyPb4CETIRcJbEYk5k2mKnelQaKmffXQ3KPMDnyhg0FXRPYwo9tgZzZ31u2wFsCRe8UynolcqIQlejgRJ148EauLkMv3tIt5zz3ZLMSqV9sfrlgmxOaXY87yeKbB02yg1yJMmJFP5_fAAQwT8x</recordid><startdate>20230221</startdate><enddate>20230221</enddate><creator>Schweizer, T. F</creator><creator>Niemann, U</creator><creator>Que, X</creator><creator>He, Q</creator><creator>Zhou, L</creator><creator>Kim, M</creator><creator>Takagi, H</creator><creator>Huang, D</creator><scope>GOX</scope></search><sort><creationdate>20230221</creationdate><title>Epitaxial growth and scanning tunneling microscopy of LiV$_2$O$_4$ thin films on SrTiO$_3$(111)</title><author>Schweizer, T. F ; Niemann, U ; Que, X ; He, Q ; Zhou, L ; Kim, M ; Takagi, H ; Huang, D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_2302_108523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Physics - Materials Science</topic><topic>Physics - Strongly Correlated Electrons</topic><toplevel>online_resources</toplevel><creatorcontrib>Schweizer, T. F</creatorcontrib><creatorcontrib>Niemann, U</creatorcontrib><creatorcontrib>Que, X</creatorcontrib><creatorcontrib>He, Q</creatorcontrib><creatorcontrib>Zhou, L</creatorcontrib><creatorcontrib>Kim, M</creatorcontrib><creatorcontrib>Takagi, H</creatorcontrib><creatorcontrib>Huang, D</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Schweizer, T. F</au><au>Niemann, U</au><au>Que, X</au><au>He, Q</au><au>Zhou, L</au><au>Kim, M</au><au>Takagi, H</au><au>Huang, D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Epitaxial growth and scanning tunneling microscopy of LiV$_2$O$_4$ thin films on SrTiO$_3$(111)</atitle><date>2023-02-21</date><risdate>2023</risdate><abstract>APL Mater. 11, 021109 (2023) LiV$_2$O$_4$ is a mixed-valent spinel oxide and one of a few transition-metal
compounds to host a heavy fermion phase at low temperatures. While numerous
experimental studies have attempted to elucidate how its 3$d$ electrons undergo
giant mass renormalization, spectroscopic probes that may provide crucial
hints, such as scanning tunneling microscopy (STM), remain to be applied. A
prerequisite is atomically flat and pristine surfaces, which, in the case of
LiV$_2$O$_4$, are difficult to obtain by cleavage of small, three-dimensional
crystals. We report the epitaxial growth of LiV$_2$O$_4$ thin films with
bulklike properties on SrTiO$_3$(111) via pulsed laser deposition and stable
STM imaging of the LiV$_2$O$_4$(111) surface. The as-grown films were
transferred $ex$ $situ$ to a room-temperature STM, where subsequent annealing
with optional sputtering in ultrahigh vacuum enabled compact islands with
smooth surfaces and a hexagonal 1$\times$1 atomic lattice to be resolved. Our
STM measurements provide insights into growth mechanisms of LiV$_2$O$_4$ on
SrTiO$_3$(111), as well as demonstrate the feasibility of performing
surface-sensitive measurements of this heavy fermion compound.</abstract><doi>10.48550/arxiv.2302.10852</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Materials Science Physics - Strongly Correlated Electrons |
| title | Epitaxial growth and scanning tunneling microscopy of LiV$_2$O$_4$ thin films on SrTiO$_3$(111) |
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