scholarly journals Negative thermal expansion and magnetoelastic coupling in the breathing pyrochlore lattice material LiGaCr4S8

2018 ◽  
Vol 97 (13) ◽  
Author(s):  
G. Pokharel ◽  
A. F. May ◽  
D. S. Parker ◽  
S. Calder ◽  
G. Ehlers ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Magnetoelastic Coupling ◽  
Lattice Material

Magnetoelastic coupling, negative thermal expansion, and two-dimensional magnetic excitations in FeAs

2021 ◽  
Vol 103 (9) ◽  
Author(s):  
J. L. Niedziela ◽  
L. D. Sanjeewa ◽  
A. A. Podlesnyak ◽  
L. DeBeer-Schmitt ◽  
S. J. Kuhn ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Two Dimensional ◽  
Magnetic Excitations ◽  
Magnetoelastic Coupling

Large Negative Thermal Expansion and Magnetoelastic Coupling in Metamagnetic Tetragonal (Mn, T)2Sb (T = Cr, V) Alloys

2020 ◽  
Vol 33 (9) ◽  
pp. 2551-2555
Author(s):  
Yuzhuo Yan ◽  
Jiancheng Yang ◽  
Ni Zhao ◽  
Guiquan Yao ◽  
Xiaoxiao Fu ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Magnetoelastic Coupling

Cobalt adipate, Co(C6H8O4): antiferromagnetic structure, unusual thermal expansion and magnetoelastic coupling

2014 ◽  
Vol 1 (3) ◽  
pp. 332-337 ◽  
Author(s):  
Paul J. Saines ◽  
Phillip T. Barton ◽  
Marek Jura ◽  
Kevin S. Knight ◽  
Anthony K. Cheetham
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Magnetoelastic Coupling ◽  
Antiferromagnetic Structure

Anisotropic negative thermal expansion, driven by magnetoelastic coupling, has been found in cobalt adipate and interpreted through understanding its antiferromagnetic structure.

Polarization- and Strain-Mediated Control of Negative Thermal Expansion and Ferroelasticity in BiInO3–BiZn1/2Ti1/2O3

2021 ◽  
Vol 33 (4) ◽  
pp. 1498-1505
Author(s):  
Takumi Nishikubo ◽  
Takahiro Ogata ◽  
Lalitha Kodumudi Venkataraman ◽  
Daniel Isaia ◽  
Zhao Pan ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion

scholarly journals Negative thermal expansion in YbMn2Ge2 induced by the dual effect of magnetism and valence transition

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Yongqiang Qiao ◽  
Yuzhu Song ◽  
Andrea Sanson ◽  
Longlong Fan ◽  
Qiang Sun ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Intermetallic Compound ◽  
Cell Volume ◽  
Valence State ◽  
Unit Cell Volume ◽  
Negative Thermal Expansion ◽  
Combined Effect ◽  
Dual Effect ◽  
Valence Transition ◽  
Magnetovolume Effect

AbstractNegative thermal expansion (NTE) is an intriguing property, which is generally triggered by a single NTE mechanism. In this work, an enhanced NTE (αv = −32.9 × 10−6 K−1, ΔT = 175 K) is achieved in YbMn2Ge2 intermetallic compound to be caused by a dual effect of magnetism and valence transition. In YbMn2Ge2, the Mn sublattice that forms the antiferromagnetic structure induces the magnetovolume effect, which contributes to the NTE below the Néel temperature (525 K). Concomitantly, the valence state of Yb increases from 2.40 to 2.82 in the temperature range of 300–700 K, which simultaneously causes the contraction of the unit cell volume due to smaller volume of Yb3+ than that of Yb2+. As a result, such combined effect gives rise to an enhanced NTE. The present study not only sheds light on the peculiar NTE mechanism of YbMn2Ge2, but also indicates the dual effect as a possible promising method to produce enhanced NTE materials.

Nanoparticle Superlattices with Negative Thermal Expansion (NTE) Coefficients

2021 ◽  
Author(s):  
Hyeong Jin Kim ◽  
Wenjie Wang ◽  
Surya Mallapragada ◽  
Alex Travesset ◽  
David Vaknin
Keyword(s):  
Thermal Expansion ◽  
Negative Thermal Expansion ◽  
Nanoparticle Superlattices
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