A trinuclear {FeIII2FeII} complex involving both spin and non-spin transitions exhibits three-step and wide thermal hysteresis

2022 ◽  
Author(s):  
Xin-Hua Zhao ◽  
Dong Shao ◽  
Jia-Tao Chen ◽  
De-Xuan Gan ◽  
Jiong Yang ◽  
...  
Keyword(s):  
Thermal Hysteresis ◽  
Spin Transitions

Spin Transitions and Thermal Hysteresis in the Molecular-Based Materials [Fe(Htrz)2(trz)](BF4) and [Fe(Htrz)3](BF4)2.cntdot.H2O (Htrz = 1,2,4-4H-triazole; trz = 1,2,4-triazolato)

1994 ◽  
Vol 6 (8) ◽  
pp. 1404-1412 ◽  
Author(s):  
Jonas Kroeber ◽  
Jean-Paul Audiere ◽  
Renee Claude ◽  
Epiphane Codjovi ◽  
Olivier Kahn ◽  
...  
Keyword(s):  
Thermal Hysteresis ◽  
Spin Transitions

Thin films of spin-crossover coordination polymers with large thermal hysteresis loops prepared by nanoparticle spin coating

2014 ◽  
Vol 50 (70) ◽  
pp. 10074-10077 ◽  
Author(s):  
Daisuke Tanaka ◽  
Naoki Aketa ◽  
Hirofumi Tanaka ◽  
Takashi Tamaki ◽  
Tomoko Inose ◽  
...  
Keyword(s):  
Thin Films ◽  
Coordination Polymers ◽  
Spin Coating ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Hysteresis Loops ◽  
Spin Transitions

Spin-crossover nanoparticles form homogeneous thin films on substrates, which show abrupt spin transitions with large thermal hysteresis loops.

Spin-crossover in an iron(iii) complex showing a broad thermal hysteresis

2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Mononuclear Complex ◽  
Hysteresis Width ◽  
Thermally Induced

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).

Nature of thermal hysteresis of martensitic transformation in aged Cu-Mn-A1 alloy

2003 ◽  
Vol 112 ◽  
pp. 495-498
Author(s):  
V. V. Kokorin ◽  
L. E. Kozlova ◽  
A. N. Titenko
Keyword(s):  
Martensitic Transformation ◽  
Thermal Hysteresis

Freezing

2017 ◽  
Author(s):  
Andrew Clarke
Keyword(s):  
Thermal Hysteresis ◽  
Higher Plants ◽  
Terrestrial Environment ◽  
Cold Temperatures ◽  
Cellular Dehydration ◽  
A Cell ◽  
Unicellular Organisms ◽  
Cell Cytosol ◽  
Freezing Temperatures ◽  
Multicellular Organisms

Freezing is a widespread ecological challenge, affecting organisms in over half the terrestrial environment as well as both polar seas. With very few exceptions, if a cell freezes internally, it dies. Polar teleost fish in shallow waters avoid freezing by synthesising a range of protein or glycoprotein antifreezes. Terrestrial organisms are faced with a far greater thermal challenge, and exhibit a more complex array of responses. Unicellular organisms survive freezing temperatures by preventing ice nucleating within the cytosol, and tolerating the cellular dehydration and membrane disruption that follows from ice forming in the external environment. Multicellular organisms survive freezing temperatures by manipulating the composition of the extracellular body fluids. Terrestrial organisms may freeze at high subzero temperatures, often promoted by ice nucleating proteins, and small molecular mass cryoprotectants (often sugars and polyols) moderate the osmotic stress on cells. A range of chaperone proteins (dehydrins, LEA proteins) help maintain the integrity of membranes and macromolecules. Thermal hysteresis (antifreeze) proteins prevent damaging recrystallisation of ice. In some cases arthropods and higher plants prevent freezing in their extracellular fluids and survive by supercooling. Vitrification of extracellular water, or of the cell cytosol, may be a more widespread response to very cold temperatures than recognised to date.

scholarly journals Electrical read-out of light-induced spin transition in thin film spin crossover/graphene heterostructures

2021 ◽  
Author(s):  
Nikita Konstantinov ◽  
Arthur Tauzin ◽  
Ulrich Nguetchuissi Noumbé ◽  
Diana Dragoe ◽  
Bohdan Kundys ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Crossover ◽  
Spin Transition ◽  
Switching Device ◽  
Electronic Switching ◽  
Spin Transitions

An opto-electronic switching device made from an evaporated spin crossover thin film over a graphene sensor is presented. The electrical transduction of both temperature and light-induced reversible spin transitions are demonstrated.

Unstable and Stable Thermal Hysteresis Under Thermal Triangle Waves

2021 ◽  
Vol 6 (18) ◽  
pp. 4461-4465
Author(s):  
Mieko Arisawa ◽  
Rina Iwamoto ◽  
Masahiko Yamaguchi
Keyword(s):  
Thermal Hysteresis
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