Editing Spin glass (section)

==Spin-glass without structural disorder==

Elemental crystalline neodymium is [[Paramagnetism|paramagnetic]] at room temperature and becomes an [[Antiferromagnetism|antiferromagnet]] with incommensurate order upon cooling below 19.9&nbsp;K.<ref>{{cite book|author1=Andrej Szytula|author2=Janusz Leciejewicz|title=Handbook of Crystal Structures and Magnetic Properties of Rare Earth Intermetallics|url=https://books.google.com/books?id=-tgM8oAQcdcC&pg=PA1|date=8 March 1994|publisher=CRC Press|isbn=978-0-8493-4261-5|page=1}}</ref> Below this transition temperature it exhibits a complex set of magnetic phases<ref>{{cite journal | last1=Zochowski | first1=S W | last2=McEwen | first2=K A | last3=Fawcett | first3=E | title=Magnetic phase diagrams of neodymium | journal=Journal of Physics: Condensed Matter | volume=3 | issue=41 | date=1991 | issn=0953-8984 | doi=10.1088/0953-8984/3/41/007 | pages=8079–8094| bibcode=1991JPCM....3.8079Z }}</ref><ref>{{cite journal | last1=Lebech | first1=B | last2=Wolny | first2=J | last3=Moon | first3=R M | title=Magnetic phase transitions in double hexagonal close packed neodymium metal-commensurate in two dimensions | journal=Journal of Physics: Condensed Matter | volume=6 | issue=27 | date=1994 | issn=0953-8984 | doi=10.1088/0953-8984/6/27/029 | pages=5201–5222| bibcode=1994JPCM....6.5201L }}</ref> that have long spin relaxation times and spin-glass behavior that does not rely on structural disorder.<ref>{{cite journal | last1=Kamber | first1=Umut | last2=Bergman | first2=Anders | last3=Eich | first3=Andreas | last4=Iuşan | first4=Diana | last5=Steinbrecher | first5=Manuel | last6=Hauptmann | first6=Nadine | last7=Nordström | first7=Lars | last8=Katsnelson | first8=Mikhail I. | last9=Wegner | first9=Daniel | last10=Eriksson | first10=Olle | last11=Khajetoorians | first11=Alexander A. | title=Self-induced spin glass state in elemental and crystalline neodymium | journal=Science | volume=368 | issue=6494 | date=2020 | issn=0036-8075 | doi=10.1126/science.aay6757 | page=| pmid=32467362 | arxiv=1907.02295 }}</ref>