{{Chembox <!-- Images --> | Name = Gadolinium phosphide | ImageFile = NaCl polyhedra.png | ImageSize = 200px | ImageAlt = <!-- Names --> | IUPACName = | OtherNames = Gadolinium monophosphide, phosphanylidynegadolinium <!-- Sections --> | Section1 = {{Chembox Identifiers | CASNo = 12024-79-2 | CASNo_Ref = {{Cascite|correct|CAS}} | PubChem = 82814 | ChemSpiderID = 74731 | EINECS = 234-696-4 | UNNumber = | SMILES = [Gd].[P] | StdInChI= 1S/Gd.P | StdInChIKey= ZBYBPUTWLXQDMS-UHFFFAOYSA-N }} | Section2 = {{Chembox Properties | Gd=1|P=1 | Appearance = crystals | Density = 6.68 g/cm<sup>3</sup> | MolarMass = | Solubility = | MeltingPtC = | BoilingPtC = | VaporPressure = }} | Section4 = {{Chembox Structure | CrystalStruct = Cubic | SpaceGroup = ''Fm''3''m'' }} | Section7 = {{Chembox Hazards | MainHazards = | GHSPictograms = | GHSSignalWord = | HPhrases = | PPhrases = | FlashPtC = | AutoignitionPt = }} | Section9 = {{Chembox Related | OtherAnions = Gadolinium nitride<br>Gadolinium arsenide<br>Gadolinium antimonide<br>Gadolinium bismuthide | OtherCations = Europium phosphide<br>Terbium phosphide | OtherFunction = | OtherFunction_label = | OtherCompounds = }} }} '''Gadolinium phosphide''' is an inorganic compound of gadolinium and phosphorus with the chemical formula GdP.<ref name="AA">{{cite web |title=Gadolinium Phosphide |url=https://www.americanelements.com/gadolinium-phosphide-12024-79-2 |publisher=American Elements |access-date=9 January 2022 |language=en}}</ref><ref>{{cite journal |title=Characteristics of gadolinium monophosphide |journal=Russian Journal of Inorganic Chemistry |date=1971 |volume=16 (Part 2) |page=940 |url=https://books.google.com/books?id=qltHAQAAIAAJ&q=gadolinium+phosphide+GdP |access-date=9 January 2022 |publisher=British Library Lending Division with the cooperation of the Royal Society of Chemistry |language=en}}</ref>
==Synthesis== Gadolinium phosphide can be obtained by reacting gadolinium and phosphorus at high temperature, and single crystals can be obtained by mineralization.<ref>{{cite journal |last1=Li |first1=D. X. |last2=Haga |first2=Y. |last3=Shida |first3=H. |last4=Suzuki |first4=T. |last5=Kwon |first5=Y. S. |title=Electrical transport properties of semimetallic GdX single crystals (X=P, As, Sb, and Bi) |journal=Physical Review B |date=15 October 1996 |volume=54 |issue=15 |pages=10483–10491 |doi=10.1103/PhysRevB.54.10483 |pmid=9984843 |bibcode=1996PhRvB..5410483L |url=https://journals.aps.org/prb/abstract/10.1103/PhysRevB.54.10483 |access-date=9 January 2022|url-access=subscription }}</ref> ::4 Gd + P<sub>4</sub> → 4 GdP
==Physical properties== GdP has a NaCl-structure and transforms to a CsCl-structure at 40 GPa.<ref>{{cite journal |last1=Adachi |first1=Takafumi |last2=Shirotani |first2=Ichimin |last3=Hayashi |first3=Junichi |last4=Shimomura |first4=Osamu |title=Phase transitions of lanthanide monophosphides with NaCl-type structure at high pressures |journal=Physics Letters A |date=28 December 1998 |volume=250 |issue=4 |pages=389–393 |doi=10.1016/S0375-9601(98)00840-8 |bibcode=1998PhLA..250..389A |url=https://www.sciencedirect.com/science/article/abs/pii/S0375960198008408 |access-date=9 January 2022 |language=en |issn=0375-9601|url-access=subscription }}</ref>
GdP forms crystals of a cubic system, space group ''Fm''3''m''.<ref>{{cite web |title=Gadolinium Phosphide GdP |url=https://materialsproject.org/materials/mp-510401/ |publisher=materialsproject.org |access-date=9 January 2022}}</ref><ref>{{cite book |last1=Donnay |first1=Joseph Désiré Hubert |title=Crystal Data: Inorganic compounds 1967-1969 |date=1978 |publisher=National Bureau of Standards |page=75 |url=https://books.google.com/books?id=QZkhAQAAMAAJ&q=gadolinium+phosphide+GdP |access-date=9 January 2022 |language=en}}</ref>
Gadolinium phosphide is antiferromagnetic.{{cn|date=April 2023}}
==Uses== The compound is a semiconductor used in high power, high frequency applications and in laser diodes.<ref name="AA"/><ref>{{cite journal |last1=Lone |first1=Ikram Un Nabi |last2=Sirajuddeen |first2=M. Mohamed Sheik |last3=Khalid |first3=Saubia |last4=Raza |first4=Hafiz Hamid |title=First-Principles Study on Electronic, Magnetic, Optical, Mechanical, and Thermodynamic Properties of Semiconducting Gadolinium Phosphide in GGA, GGA+U, mBJ, GGA+SOC and GGA+SOC+U approaches |journal=Journal of Superconductivity and Novel Magnetism |date=May 2021 |volume=34 |issue=5 |pages=1523–1538 |doi=10.1007/s10948-021-05877-z |pmid=33841054 |pmc=8019481 |url=https://www.researchgate.net/publication/350617765 |access-date=9 January 2022}}</ref>
==References== {{Reflist}}
{{Phosphorus compounds}} {{Gadolinium compounds}} {{Phosphides}}
Category:Phosphides Category:Gadolinium compounds Category:Semiconductors Category:Rock salt crystal structure