V. V. Eremenko, S. S. Saxena, V. A. Sirenko, K. A. Minakova
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引用次数: 0
摘要
自 L. S. Palatnik (1909-1994),Fiz. Nizk. Temp. 25, 400 (1909)]提出多态性概念以来的四十年间,大量研究证明了多态性存在于各种非磁性短程有序材料中,如结构材料、金属材料、a-金属材料、无机分子材料、定向材料、电子玻璃、水、冰、碳等。它表现为非晶态之间的相变,是淬火条件和压缩条件的函数,由有序参数的长波波动介导。最近,人们对多态性现象进行了大量讨论,在多态性现象中,可以观察到非晶态液体和固体的不同状态与密度的函数关系。在此,我们应该承认最近去世的 A. Sella 等人 (1956-2022) [Nat. Mater. 21, 490 (2022)]2在这一领域做出的杰出贡献。这一现象的基础是两种非晶相之间的密度和熵差驱动的一阶液相转变的可能性。最近还发现了多层石墨烯在压力下的磁助推效应。尽管自旋液体、自旋冰和自旋玻璃有许多相似之处,但迄今为止对它们的研究还较少。有鉴于此,为了进一步开发多态性平台,我们展示了自旋玻璃在磁场驱动下的相变特征,并最终发现了一种新型多态性--自旋玻璃。
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.
期刊介绍:
Guided by an international editorial board, Low Temperature Physics (LTP) communicates the results of important experimental and theoretical studies conducted at low temperatures. LTP offers key work in such areas as superconductivity, magnetism, lattice dynamics, quantum liquids and crystals, cryocrystals, low-dimensional and disordered systems, electronic properties of normal metals and alloys, and critical phenomena. The journal publishes original articles on new experimental and theoretical results as well as review articles, brief communications, memoirs, and biographies.
Low Temperature Physics, a translation of the copyrighted Journal FIZIKA NIZKIKH TEMPERATUR, is a monthly journal containing English reports of current research in the field of the low temperature physics. The translation began with the 1975 issues. One volume is published annually beginning with the January issues.