Polar Metals Materials Database
Search the table below for polar compounds exhibiting metallic conductivity as defined in Hickox-Young et al. Phys. Rev. Materials 7, 010301 (2023).
Tabulated symmetry and transition information available include: Space group (SG), Point group (PG), Polar structural phase transition (TC), Superconducting transition (TSC), and Magnetic ordering transition (TM).
If your polar metal is missing, please contact James Rondinelli to have your entry added. We understand that new materials are steadily discovered every year.
Subclass Designations
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Polar metal (PM)
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Distortive polar metal (DPM)
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Anisotropic polar metal (APM)
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Extrinsic polar metal (EPM)
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Interfacial polar metal (IPM)
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Magnetoelectric Multiferroic (MEMF)
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Degenerately doped ferroelectric (DDF)
| Material | SG | PG | Structure-Type | Tc | Tsc | TM | Subclass | Reference (DOI) |
|---|---|---|---|---|---|---|---|---|
| BaTiO3 (La-doped) | P4mm | 4mm | perovskite | Yes | DDF | 10.1038/s41598-017-04635-3 | ||
| BaTiO3-d | P4mm | 4mm | perovskite | Yes | DDF | 10.1103/PhysRevLett.104.147602 | ||
| PbTiO3-d | P4mm | 4mm | perovskite | P | EPM | 10.1103/PhysRevB.94.224107 | ||
| PbTi(1-x)NbxO3 | P4mm | 4mm | perovskite | EPM | 10.1103/PhysRevB.96.165206 | |||
| BiFeO3-d | R3c | 3m | perovskite | P | Yes | EPM | 10.1103/PhysRevB.93.174110 | |
| Sr(1-x)CaxTiO3-d | P4mm | 4mm | perovskite | Yes | Yes | DPM | 10.1038/NPHYS4085 | |
| BaMnO3 (n-doped) | Amm2 | mm2 | perovskite | P | EPM | 10.1103/PhysRevB.97.054107 | ||
| BiAlO3 (n-doped) | P4mm | 4mm | perovskite | P | EPM | 10.1103/PhysRevB.97.054107 | ||
| BaTiO3/SrTiO3/LaTiO3 | mm4* | 4mm | perovskite | IPM | 10.1038/s41467-018-03964-9 | |||
| LaAlO3/Ba0.2Sr0.8TiO3/SrTiO3 | unknown | unknown | perovskite | IPM | 10.1038/s42005-019-0227-4 | |||
| LaFeO3/YFeO3 (n-doped) | Pmc2_1 | mm2 | perovskite | P | IPM | 10.1103/PhysRevB.97.054107 | ||
| NdNiO3 on (111) LaAlO3 | Pc | m | perovskite | PM | 10.1038/nature17628 | |||
| LaNiO3 on (111) LaAlO3 | Pc | m | perovskite | PM | 10.1038/nature17628 | |||
| LiOsO3 | R3c | 3m | LiNbO3-type | Yes | DPM | 10.1038/NMAT3754 | ||
| LiNbO3 (n-doped) | R3c | 3m | LiNbO3-type | P | DDF | 10.1103/PhysRevMaterials.3.054405 | ||
| MgReO3 | R3c | 3m | LiNbO3-type | P | PM | 10.1103/PhysRevB.90.094108 | ||
| TiGaO3 | R3c | 3m | LiNbO3-type | P | PM | 10.1103/PhysRevB.90.094108 | ||
| Ca3Ru2O7 | Bb2_1m | mm2 | Ruddlesden-Popper | Yes | PM | 10.1021/acs.nanolett.8b00633 | ||
| (Sr,Ca)Ru2O6 | Pmc2_1 | mm2 | perovskite | P | Yes | PM | 10.1088/0953-8984/26/26/265501 | |
| Bi5Ti5O17 | Pm2_1n | mm2 | layered perovskite | P | APM | 10.1038/ncomms11211 | ||
| BiPbTi2O6 | Pmm2 | mm2 | post-perovskite | P | PM | 10.1038/s43246-019-0005-6 | ||
| La2Ti2O7 (n-doped) | P2_1 | 2 | layered perovskite | P | EPM | 10.1103/PhysRevB.97.054107 | ||
| Sr2Nb2O7 (n-doped) | Cmc2_1 | mm2 | layered perovskite | P | EPM | 10.1103/PhysRevB.97.054107 | ||
| MgCNi3 | P4mm | 4mm | BaNiSn3-type | P | PM | 10.1103/PhysRevMaterials.2.125004 | ||
| ZnCNi3 | P4mm | 4mm | BaNiSn3-type | P | PM | 10.1103/PhysRevMaterials.2.125004 | ||
| CdCNi3 | P4mm | 4mm | BaNiSn3-type | P | PM | 10.1103/PhysRevMaterials.2.125004 | ||
| CeSiPt3 | P4mm | 4mm | antiperovskite | Yes | Yes | PM | 10.1103/PhysRevLett.92.027003 | |
| LiGaGe | P6_3mc | 6mm | LiGaGe-type | PM | 10.1103/PhysRevB.99.195154 | |||
| SrHgPb | P6_3mc | 6mm | LiGaGe-type | P | PM | 10.1103/PhysRevLett.121.106404 | ||
| SrHgSn | P6_3mc | 6mm | LiGaGe-type | P | PM | 10.1103/PhysRevLett.121.106404 | ||
| CaHgSn | P6_3mc | 6mm | LiGaGe-type | P | PM | 10.1103/PhysRevLett.121.106404 | ||
| KMgSb0.2Bi0.8 | P6_3mc | 6mm | LiGaGe-type | P | PM | 10.1103/PhysRevLett.117.076401 | ||
| CaAgBi | P6_3mc | 6mm | LiGaGe-type | P | PM | 10.1103/PhysRevMaterials.1.044201 | ||
| LiZnBi | P6_3mc | 6mm | LiGaGe-type | P | PM | 10.1103/PhysRevB.96.115203 | ||
| LaAuGe | P6_3mc | 6mm | LiGaGe-type | PM | 10.1063/1.5132339 | |||
| LaPtSb | P6_3mc | 6mm | LiGaGe-type | PM | 10.1063/1.5132339 | |||
| WTe2 | Pnm2_1 | mm2 | 2D | Yes | Yes | APM | 10.1038/s41586-018-0336-3 | |
| MoTe2 | Pnm2_1 | mm2 | 2D | Yes | PM | 10.1126/sciadv.1601378 | ||
| CrN | 6mm* | 6mm | 2D | Yes | APM | 10.1103/PhysRevB.96.235415 | ||
| CrB2 | 6mm* | 6mm | 2D | P | Yes | APM | 10.1103/PhysRevB.96.235415 | |
| FeB2 | 6mm* | 6mm | 2D | APM | 10.1021/acs.nanolett.6b02335 | |||
| P | P6_3mc | 6mm | α-La-like | P | PM | 10.1088/1361-648X/aadeaa | ||
| As | P6_3mc | 6mm | α-La-like | P | PM | 10.1088/1361-648X/aadeaa | ||
| Sb | P6_3mc | 6mm | α-La-like | P | PM | 10.1088/1361-648X/aadeaa | ||
| Bi | P6_3mc | 6mm | α-La-like | P | PM | 10.1088/1361-648X/aadeaa | ||
| SnP | I4mm | 4mm | rock salt | Yes | Yes | DPM | 10.1103/PhysRevLett.119.207001 | |
| PdBi | P2_1 | 2 | PdBi-type | Yes | PM | 10.1016/j.phpro.2013.04.062 | ||
| UIr | P2_1 | 2 | PdBi-type | Yes | Yes | PM | 10.1007/978-3-642-24624-1_2 | |
| LaNiC2 | Amm2 | mm2 | CeNiC2-type | Yes | Yes | PM | 10.1016/j.physc.2014.01.008 | |
| NdRhC2 | Amm2 | mm2 | CeNiC2-type | Yes | PM | 10.1021/cm00006a007 | ||
| PrRhC2 | Amm2 | mm2 | CeNiC2-type | Yes | PM | 10.1021/cm00006a007 | ||
| LaSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| CeSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| PrSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| NdSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| PmSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| SmSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| EuSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| GdSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| TbSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| DySr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| HoSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| ErSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| TmSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| YbSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| YSr2Cu2GaO7 | Ima2 | mm2 | LnSr2Cu2GaO7 | Yes | Yes | PM | 10.1021/cm00017a032 | |
| V2Hf | Imm2 | mm2 | Laves phase | Yes | Yes | DPM | 10.1103/PhysRevB.17.1136 | |
| Li2IrSi3 | P3_1c | 3m | kagome | Yes | PM | 10.7566/JPSJ.83.093706 | ||
| Mg2Al3 | R3m | 3m | Samson phase | Yes | Yes | DPM | 10.1103/PhysRevB.76.014528 | |
| La5B2C6 | P4 | 4 | La5B2C6-type | Yes | PM | 10.1016/0022-5088(83)90520-9 | ||
| BaPtSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1103/PhysRevB.80.064504 | ||
| CeIrSi3 | I4mm | 4mm | BaNiSn3-type | Yes | Yes | PM | 10.1143/JPSJS.77SA.37 | |
| CeRhSi3 | I4mm | 4mm | BaNiSn3-type | Yes | Yes | PM | 10.1143/JPSJ.76.051010 | |
| LaPtSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1103/PhysRevB.89.094509 | ||
| LaPdSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1103/PhysRevB.89.094509 | ||
| CeIrGe3 | I4mm | 4mm | BaNiSn3-type | Yes | Yes | PM | 10.1016/j.jmmm.2006.10.151 | |
| EuNiGe3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1103/PhysRevB.87.064406 | ||
| LaRhGe3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1063/5.0042924 | |||
| IrRhGe3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1063/5.0042924 | |||
| PdRhGe3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1063/5.0042924 | |||
| SrPdGe3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1088/1742-6596/273/1/012078 | ||
| SrPtGe3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1088/1742-6596/273/1/012078 | ||
| PrPdIn2 | I4mm | 4mm | HfNiGa2-Type | Yes | PM | 10.1021/cm031139m | ||
| CePt3Si | I4mm | 4mm | anti-perovskite | Yes | Yes | PM | 10.1103/PhysRevLett.92.027003 | |
| Li2(Pd1-xPtx)3B | I4mm | 4mm | Li2(Pd1-xPtx)3B | Yes | Yes | PM | 10.1088/1742-6596/400/2/022096 | |
| KCu7P3 | P31m | 3m | 2D | PM | 10.1021/acs.inorgchem.9b01336 | |||
| Bi2FeCrO6 | R3 | 3 | perovskite | P | Yes | PM | 10.1103/PhysRevLett.123.107201 | |
| CeAuGe | P6_3mc | 6mm | AlB2-type | Yes | PM | 10.1016/0304-8853(95)00430-0 | ||
| LuAuGe | P6_3mc | 6mm | AlB2-type | PM | 10.1016/0925-8388(95)02069-1 | |||
| ScAuGe | P6_3mc | 6mm | AlB2-type | PM | 10.1016/0925-8388(95)02069-1 | |||
| HoAuGe | P6_3mc | 6mm | NdPtSb-type | Yes | PM | 10.1088/0953-8984/13/11/315 | ||
| CeCuSn | P6_3mc | 6mm | AlB2-type | PM | 10.1016/j.jallcom.2004.09.086 | |||
| La15Ge9C | P6_3mc | 6mm | La15Ge9Fe-type | PM | 10.1016/j.jallcom.2011.03.092 | |||
| La15Ge9Fe | P6_3mc | 6mm | Mn5Si3-type | Yes | PM | 10.1021/ic9515158 | ||
| La15Ge9Co | P6_3mc | 6mm | Mn5Si3-type | PM | 10.1021/ic9515158 | |||
| La15Ge9Ni | P6_3mc | 6mm | Mn5Si3-type | PM | 10.1021/ic9515158 | |||
| Sr3Cu8Sn4 | P6_3mc | 6mm | BaAl4-type | PM | 10.1016/j.intermet.2011.02.018 | |||
| IrMg2.03In.97 | P6_3mc | 6mm | FeGa3-type | PM | 10.1016/j.intermet.2003.12.001 | |||
| IrMg2.20In.80 | P6_3mc | 6mm | FeGa3-type | PM | 10.1016/j.intermet.2003.12.001 | |||
| CaAlSi | P6_3 | 6 | MgB2-Type | Yes | PM | 10.1143/JPSJ.75.043713 | ||
| TlV6S8 | P6_3 | 6 | Nb3Te4-type | Yes | PM | 10.1016/S0038-1098(01)00333-7 | ||
| KV6S8 | P6_3 | 6 | Nb3Te4-type | Yes | PM | 10.1016/S0038-1098(01)00333-7 | ||
| RbV6S8 | P6_3 | 6 | Nb3Te4-type | Yes | PM | 10.1016/S0038-1098(01)00333-7 | ||
| CsV6S8 | P6_3 | 6 | Nb3Te4-type | Yes | PM | 10.1016/S0038-1098(01)00333-7 | ||
| LaPt3B | P4mm | 4mm | anti-perovskite | Yes | PM | 10.1016/S0925-8388(03)00373-6 | ||
| PrPt3B | P4mm | 4mm | anti-perovskite | Yes | PM | 10.1016/S0925-8388(03)00373-6 | ||
| NdPt3B | P4mm | 4mm | anti-perovskite | Yes | PM | 10.1016/S0925-8388(03)00373-6 | ||
| LaRhSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1016/0025-5408(84)90017-5 | ||
| LaIrSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1016/0025-5408(84)90017-5 | ||
| CeCoGe3 | I4mm | 4mm | BaNiSn3-type | Yes | Yes | PM | 10.1016/j.jmmm.2006.10.717 | |
| LaCoGe3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1143/JPSJ.75.044711 | ||
| CeRhGe3 | I4mm | 4mm | BaNiSn3-type | Yes | Yes | PM | 10.1143/JPSJ.77.064716 | |
| CeRuSi3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1143/JPSJ.77.064716 | |||
| LaIrGe3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1143/JPSJ.77.064717 | |||
| LaFeGe3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1143/JPSJ.77.064717 | |||
| PrCoGe3 | I4mm | 4mm | BaNiSn3-type | PM | 10.1143/JPSJ.77.064717 | |||
| CaIrSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1016/j.physc.2009.10.120 | ||
| CaPtSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1134/S0021364010170157 | ||
| SrAuSi3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1021/cm500032u | ||
| EuPdGe3 | I4mm | 4mm | BaNiSn3-type | Yes | PM | 10.1016/j.ssc.2012.02.022 | ||
| EuPtSi3 | I4mm | 4mm | anti-perovskite | Yes | PM | 10.1103/PhysRevB.81.144414 | ||
| NdPdIn2 | I4mm | 4mm | HfNiGa2-Type | PM | 10.1021/cm031139m | |||
| SmPdIn2 | I4mm | 4mm | HfNiGa2-Type | PM | 10.1021/cm031139m | |||
| GdPdIn2 | I4mm | 4mm | HfNiGa2-Type | PM | 10.1021/cm031139m | |||
| ErPdIn2 | I4mm | 4mm | HfNiGa2-Type | PM | 10.1021/cm031139m | |||
| TmPdIn2 | I4mm | 4mm | HfNiGa2-Type | PM | 10.1021/cm031139m | |||
| LuPdIn2 | I4mm | 4mm | HfNiGa2-Type | PM | 10.1021/cm031139m | |||
| La2NiAl7 | I4mm | 4mm | BaAl4-type | PM | 10.1021/cm050513a | |||
| GeP | I4mm | 4mm | rock salt | Yes | PM | 10.1016/0022-4596(70)90005-8 | ||
| Ir9Al28 | P3_1c | 3m | Ir9Al28-type | PM | 10.1016/j.jallcom.2005.06.027 | |||
| γ-Bi2Pt | P3_1m | 3m | γ-Bi2Pt | PM | 10.1002/zaac.201400331 | |||
| Au6.05Zn12.51 | P3_1m | 3m | γ-brass | PM | 10.1021/ic301933a | |||
| Ba21Al40 | P3_1m | 3m | kagome-derived | PM | 10.1021/ic0400235 | |||
| Li17Ag3Sn6 | P3_1m | 3m | kagome-derived | PM | 10.1021/ja038868n | |||
| Cr5Al8 | R3m | 3m | γ-brass | PM | 10.1107/S0567740874004997 | |||
| Mn5Al8 | R3m | 3m | Cr5Al8-type | Yes | DPM | 10.1007/BF02672582 | ||
| Cu7.8Al5 | R3m | 3m | γ-brass | PM | 10.1107/S0108768191005694 | |||
| Cu7Hg6 | R3m | 3m | γ-brass | PM | 10.3891/acta.chem.scand.23-1181 | |||
| NbS2 | R3m | 3m | NbS2-type | Yes | PM | 10.1107/S0567740874003220 | ||
| Pr2Fe17 | R3m | 3m | Th2Zn17-type | Yes | PM | 10.1103/PhysRevB.68.054424 | ||
| Pr2Co17 | R3m | 3m | Th2Zn17-type | PM | 10.1103/PhysRevB.68.054424 | |||
| Sn4As3 | R3m | 3m | Sn4As3-type | Yes | PM | 10.1002/zaac.19683630102 | ||
| Sn4P3 | R3m | 3m | Sn4As3-type | Yes | PM | 10.1002/zaac.19683630102 | ||
| La4Mg5Ge6 | Cmc2_1 | mm2 | Zintl | PM | 10.1021/ic2014732 | |||
| La4Mg7Ge6 | Cmc2_1 | mm2 | Zintl | PM | 10.1021/ic2014732 | |||
| Yb2Ga4Ge6 | Cmc2_1 | mm2 | Zintl | PM | 10.1002/chem.200305755 | |||
| Ce2Rh3(Pb,Bi)5 | Cmc2_1 | mm2 | Y2Rh3Sn5-type | Yes | PM | 10.1016/j.jssc.2007.06.012 | ||
| Eu2Pt3Sn5 | Cmc2_1 | mm2 | Y2Rh3Sn5-type | Yes | PM | 10.1524/zkri.2009.1160 | ||
| Lu4Zn5Ge6 | Cmc2_1 | mm2 | Lu4Zn5Ge6-type | PM | 10.1016/j.intermet.2013.02.018 | |||
| Hg3Te2Br2 | R3 | 3 | defect antiperovskite | Yes | PM | 10.1038/s41467-021-21836-7 | ||
| In2S3 | R3m | 3m | 2D, alpha-In2Se3 | P | APM | 10.1039/D1MH01556G | ||
| In2Se3 | R3m | 3m | 2D, alpha-In2Se3 | P | APM | 10.1039/D1MH01556G | ||
| In2Te3 | R3m | 3m | 2D, alpha-In2Se3 | P | APM | 10.1039/D1MH01556G | ||
| NaYMnReO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYFeReO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYCoReO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYNiReO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYMnOsO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYCoOsO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYNiOsO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| NaYFeWO3 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.1021/acs.chemmater.0c02976 | |
| YAl2 | P6mm | 6mm | 2D | P | APM | 10.1021/acs.jpclett.0c03136 | ||
| CaRh2 | P6mm | 6mm | 2D | P | APM | 10.1021/acs.jpclett.0c03136 | ||
| doped SiGe | P3m1 | 3m | 2D, PbTe-type | P | APM | 10.1088/1361-648X/abdce9/pdf | ||
| doped SiSn | P3m1 | 3m | 2D, PbTe-type | P | APM | 10.1088/1361-648X/abdce9/pdf | ||
| doped GeSn | P3m1 | 3m | 2D, PbTe-type | P | APM | 10.1088/1361-648X/abdce9/pdf | ||
| KNbO3/BaTiO3 | P4mm | 4mm | perovskite | P | Yes | APM | 10.1016/j.commatsci.2020.110235 | |
| (SrRuO3)1/(BaTiO3)10 | mm2* | mm2 | perovskite | Yes | APM | 10.1021/acs.nanolett.0c03417 | ||
| strained EuTiO3−xHx | Pmm2 | mm2 | perovskite | P | Yes | EPM | 10.1103/PhysRevB.102.224102 | |
| KTiO2H | unknown | unknown | perovskite | P | Yes | DDF | 10.1103/PhysRevMaterials.5.054802 | |
| RbTiO2H | unknown | unknown | perovskite | P | Yes | DDF | 10.1103/PhysRevMaterials.5.054802 | |
| CsTiO2H | unknown | unknown | perovskite | P | Yes | DDF | 10.1103/PhysRevMaterials.5.054802 | |
| doped PbZrO3 | unknown | unknown | perovskite | P | DDF | 10.1103/PhysRevB.102.134118 | ||
| LaFeAsO1-xHx | mm2* | mm2 | LaFeAsO1-xHx-type | Yes | Yes | PM | 10.21203/rs.3.rs-77544/v1 | |
| Pb2CoOsO6 | Pc | m | double perovskite | P | Yes | DPM | 10.1103/PhysRevB.102.144418 | |
| PrAlGe | I4_1md | 4mm | PrAlGe-type | Yes | PM | 10.1038/s41467-020-16879-1 | ||
| PbTe monolayer (doped) | P3m1 | 3m | 2D, PbTe-type | P | EPM, APM | 10.1039/d0nh00188k | ||
| en-CoS | Pca2_1 | mm2 | Intercalated TTMC | Yes | PM | 10.1021/acs.chemmater.1c00540 | ||
| Eu(Ti0.875Nb0.125)3 | P4mm | 4mm | perovskite | P | Yes | Yes | EPM | 10.48550/arXiv.2203.10646 |
| Bi5Mn5O17 | Pmn2_1/Pm2_1n | mm2 | layered perovskite | P | Yes | Yes | APM | 10.1038/s41467-020-18664-6 |
| 2D In | 3m* | 3m | 2-D polar metal heterostructures | PM | 10.1021/acsnano.1c05944 | |||
| 2D Ga | 3m* | 3m | 2-D polar metal heterostructures | PM | 10.1021/acsnano.1c05944 | |||
| 2D In/Ga | 3m* | 3m | 2-D polar metal heterostructures | PM | 10.1021/acsnano.1c05944 | |||
| (Fe0.5Co0.5)5GeTe2 | P6_3mc | 6mm | wurtzite | Yes | PM | 10.1126/sciadv.abm7103 | ||
| GdCaMnNiO6 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.2139/ssrn.4147202 | |
| LaCaMnNiO6 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.2139/ssrn.4147202 | |
| SmCaMnNiO6 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.2139/ssrn.4147202 | |
| TmCaMnNiO6 | P2_1 | 2 | double perovskite | P | Yes | PM | 10.2139/ssrn.4147202 | |
| SrTiO3-based 2DEGs | unknown | unknown | perovskite | Yes | Yes | Yes | IPM, APM, DPM | 10.1002/adma.201200667 10.1103/PhysRevMaterials.4.041002 10.1038/s41586-020-2197-9 |
| Doped GeTe | R3m | 3m | halite | Yes | Yes | Yes | DPM, APM | 10.1038/ncomms15033 10.1103/PhysRevLett.112.047202 |
| LaAlO3/EuTiO3/Ca:SrTiO3 | unknown | unknown | perovskite | Yes | yes | IPM, APM, MEMF | 10.1038/s41567-023-01983-y |
Notes
- In some cases, the space group is unknown and only the point group is available, indicated by an asterisk. In other cases, the specific symmetry elements are unknown but there is evidence of broken inversion symmetry.
- Compounds yet to be synthesized experimentally are indicated with a P (predicted)
Please cite our paper, Hickox-Young et al. Phys. Rev. Materials 7, 010301 (2023), where additional details may be found. The website is under active development. Please feel free to contact James Rondinelli with any questions, comments, and feature requests.
This work was supported in part by the Army Research Office (ARO) under Grant No. W911NF-15-1-0017. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.