Holmium titanate

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| ImageFile = Fragment of pyrochlore lattice in spin ice state.png

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| IUPACName = Holmium titanate

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| Section1 = {{Chembox Identifiers

| CASNo = 12351-44-9

| CASNo_Ref = {{cascite|correct|CAS}}

| PubChem =

| SMILES = [Ho+3].[Ho+3].[Ti+4].[Ti+4].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2]

| StdInChI=1S/2Ho.7O.2Ti/q2*+3;7*-2;2*+4

| StdInChIKey = ZIXFOWKXQHXOAT-UHFFFAOYSA-N

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| Section2 = {{Chembox Properties

| Ho=2|Ti=2|O=7

| Appearance =

| Density = 6.93 g/cm³

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|Section3={{Chembox Structure

| Structure_ref ={{cite journal|last1=Sukhanova|first1=G.E.|last2=Guseva|first2=K.N.|last3=Kolesnikov|first3=A.V.|last4=Shcherbakova|first4=L.G|year=1982|journal=Inorg. Mater|volume=18|pages=1742–1745|title=Phase equilibria in the TiO₂-Ho₂O₃ System}}

| CrystalStruct = Pyrochlore

| SpaceGroup = Fd{{overline|3}}m, cF88, No. 227

| Coordination =

| LattConst_a = 1.0099 nm

| UnitCellFormulas = 8

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| Section4 = {{Chembox Hazards

| MainHazards =

| GHSPictograms = {{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|351}}

| PPhrases = {{P-phrases|201|202|280|308+313|405|501}}

| Hazards_ref = {{cite web|author=LTSResearch Laboratories, Inc.|title= Safety Data Sheet Holmium Titanate|url=https://www.ltschem.com/msds/Ho2Ti2O7.pdf}}

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|Section5={{Chembox Related

| OtherAnions =

| OtherCations = Dysprosium titanate

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Holmium titanate is an inorganic compound with the chemical formula Ho₂Ti₂O₇.

Holmium titanate is a spin ice material{{Cite book|url=https://books.google.com/books?id=Y4-6CgAAQBAJ&q=Holmium+titanate&pg=PA394|title=Frustrated Spin Systems|last=Diep|first=H. T.|date=2013|publisher=World Scientific|isbn=9789814440745}} like dysprosium titanate and holmium stannate.{{cite journal|date=2009-09-03|title=Dirac Strings and Magnetic Monopoles in Spin Ice Dy₂Ti₂O₇|journal=Science|volume=326|issue=5951|pages=411–4|arxiv=1011.1174|bibcode=2009Sci...326..411M|doi=10.1126/science.1178868|pmid=19729617|s2cid=206522398|last1=Morris|first1=D. J. P.|last2=Tennant|first2=D. A.|last3=Grigera|first3=S. A.|last4=Klemke|first4=B.|last5=Castelnovo|first5=C.|last6=Moessner|first6=R.|last7=Czternasty|first7=C.|last8=Meissner|first8=M.|last9=Rule|first9=K. C.|last10=Hoffmann|first10=J.-U.|last11=Kiefer|first11=K.|last12=Gerischer|first12=S.|last13=Slobinsky|first13=D.|last14=Perry|first14=R. S.}}