scholarly journals Magnetocaloric effect and negative thermal expansion in hexagonal Fe doped MnNiGe compounds with a magnetoelastic AFM-FM-like transition

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Kun Xu ◽  
Zhe Li ◽  
Enke Liu ◽  
Haichun Zhou ◽  
Yuanlei Zhang ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Magnetocaloric Effect ◽  
Negative Thermal Expansion

Negative thermal expansion and magnetocaloric effect in Mn-Co-Ge-In thin films

2018 ◽  
Vol 112 (1) ◽  
pp. 012401 ◽  
Author(s):  
Y. Liu ◽  
K. M. Qiao ◽  
S. L. Zuo ◽  
H. R. Zhang ◽  
H. Kuang ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Expansion ◽  
Magnetocaloric Effect ◽  
Negative Thermal Expansion

A case of multifunctional intermetallic compounds: negative thermal expansion coupling with magnetocaloric effect in (Gd,Ho)(Co,Fe)2

2019 ◽  
Vol 6 (11) ◽  
pp. 3146-3151 ◽  
Author(s):  
Jinyu Hu ◽  
Kun Lin ◽  
Yili Cao ◽  
Rongjin Huang ◽  
Takeshi Matsukawa ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Rare Earth ◽  
Magnetocaloric Effect ◽  
Intermetallic Compounds ◽  
Negative Thermal Expansion ◽  
Highly Correlated ◽  
The Rare Earth

The negative thermal expansion (NTE) and magnetocaloric effect (MCE) are highly correlated in (Gd,Ho)(Co,Fe)2, both of which are governed by the rare earth moment, whereas the MCE is further reinforced through an intermediate contribution from NTE.

scholarly journals Negative Thermal Expansion in the Materials With Giant Magnetocaloric Effect

2018 ◽  
Vol 6 ◽  
Author(s):  
Fengxia Hu ◽  
Feiran Shen ◽  
Jiazheng Hao ◽  
Yao Liu ◽  
Jing Wang ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Magnetocaloric Effect ◽  
Negative Thermal Expansion ◽  
Giant Magnetocaloric Effect

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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