Four decades since the concept of polyamorphism was introduced by [L. S. Palatnik (1909–1994), Fiz. Nizk. Temp. 25, 400 (1909)], numerous investigations proved its presence in a broad variety of nonmagnetic short-range ordered materials, like structural, metallic, a-metallic, inorganic molecule, orientational, electron glasses, water, ice, carbons, and others. It was manifested by phase transitions between amorphous states as a function of the quench condition and under compression, mediated by long-wave fluctuations of an order parameter. There has been much recent discussion given to the phenomenon of polyamorphism where distinct, different states of amorphous liquids and solids are observed as a function of density. The outstanding contribution of the recently late [A. Sella, et al. (1956–2022), Nat. Mater. 21, 490 (2022)],2 in the field should be recognized here. Underlying this phenomenon is the possibility of a first-order liquid-liquid phase transition driven by the density and entropy differences between the two amorphous phases. Magnetic boost of multilayer graphene under pressure was also recently discovered. Their famous spin counterparts, such as spin liquid, spin ice, and spin glass have been less studied at this end despite numerous similarities, registered so far. Taking that in mind, for further polyamorphism platform development, we demonstrate the signatures of phase transition in spin glass, driven by a magnetic field, and eventually, a novel type of polyamorphism, the spin-glass one.
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July 2024
Research Article|
July 01 2024
Polyamorphism gets a magnetic boost
V. V. Eremenko;
V. V. Eremenko
1
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
, Kharkiv 61103, Ukraine
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S. S. Saxena;
S. S. Saxena
b)
2
Cavendish Laboratory, JJ Thomson Avenue, University of Cambridge
, CB3 0HE, Cambridge, UK
3
British Management University
, Tashkent, 35 Bobur Mirza Street, Tashkent, Uzbekistan
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V. A. Sirenko;
V. A. Sirenko
a)
1
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
, Kharkiv 61103, Ukraine
a)Author to whom correspondence should be addressed: valentyna.sir@gmail.com and sirenko@ilt.kharkov.ua
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K. A. Minakova
K. A. Minakova
4
National Technical University “Kharkiv Polytechnique Institute
,” Kharkiv 61002, Ukraine
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a)Author to whom correspondence should be addressed: valentyna.sir@gmail.com and sirenko@ilt.kharkov.ua
b)
E-mail: sss21@cam.ac.uk
Fiz. Nizk. Temp. 50, 594–604 (July 2024)
Low Temp. Phys. 50, 533–542 (2024)
Article history
Received:
May 23 2024
Citation
V. V. Eremenko, S. S. Saxena, V. A. Sirenko, K. A. Minakova; Polyamorphism gets a magnetic boost. Low Temp. Phys. 1 July 2024; 50 (7): 533–542. https://doi.org/10.1063/10.0026269
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