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Kiswandhi, Andhika; Ma, Jie; Brooks, J. S.; Zhou, H. D.

doi:10.1103/physrevb.90.155132

Cited by 14 publications

(10 citation statements)

References 20 publications

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“…The conven tional distortion parameter c/a (=c T /a T √2) at 10 K changes from 0.989 to 0.994 on increasing the pressure from 2.5 GPa to 5 GPa indicating lowering of distortion on increase of pres sure. A similar behavior is observed in the doping studies by non magnetic dopants in AV 2 O 4 compounds[8]. The tetrag onal distortion and activation energy (E a ) obtained from conductivity studies are found to be correlated.…”

supporting

confidence: 80%

“…The V-V distance in this system can be influenced by either varying the size of A 2+ ion or by applying external pressure. Additionally, the AB interaction in AB 2 O 4 compounds is also found to influ ence the approach to itinerant behavior [8]. BlancoCanosa et al [1] have shown with the help of pressure dependent magnetization measurements that there exists an enhanced pressure dependence of T N in these AV 2 O 4 compounds.…”

Section: Introductionmentioning

confidence: 99%

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Pressure induced effects on the chemical and magnetic structure of spinel MnV₂O₄

Singh

Hansen²,

Ritter³

et al. 2017

J. Phys.: Condens. Matter

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The influence of external pressure (P ⩽ 5 GPa) on both the structural and magnetic ordering in MnVO has been investigated using neutron diffraction technique. The volume and the V-V distance decrease with pressure while the c/a ratio increases, suggesting a lowering of the distortion with pressure. Under ambient conditions this compound exhibits a structural transition (T ) from tetragonal to cubic at ~53 K and a magnetic transition (T ) at ~56 K. It is found that with an increase in pressure to 5 GPa, T increases (from 56 K to 80 K), dT /dP > 0, while T decreases (from 53 K to 37 K). The non collinear magnetic structure in the tetragonal phase at 5 GPa and 10 K remains the same as at ambient pressure. However, the Mn and V sublattice, now exhibits distinct transition temperatures, [Formula: see text] ~ 80 K, and [Formula: see text] ~ 60 K. The transition to the cubic phase at T is accompanied by a collinear alignment of the Mn and V spins and a reduction in the Mn moment. The region in which the structure remains in the cubic phase with collinear magnetic structure increases with pressure from ~3 K at ambient pressure to ~43 K at 5 GPa pressure.

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supporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Pressure induced effects on the chemical and magnetic structure of spinel MnV₂O₄

Singh

Hansen²,

Ritter³

et al. 2017

J. Phys.: Condens. Matter

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show abstract

“…For example, the resistivity and X-ray diffraction (XRD) studies on Mn 1−x Co x V 2 O 4 show that with increasing Codoping, the system approaches the itinerant electron limit with decreasing resistivity [33]. Around x = 0.8, the system shows no structural phase transition down to 10 K [33,34]. Recently, the neutron scattering experiments and first principle calculations have revealed that the strong competition between the orbital ordering and itinerancy in Mn 1−x Co x V 2 O 4 is the key factor for its complex magnetic and structural phase diagram.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the magnetic and structural properties ofFe1−xCoxV2O4

Sinclair

Cao

et al. 2015

Phys. Rev. B

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The magnetic and structural properties of single crystal Fe1−xCoxV2O4 samples have been investigated by performing specific heat, susceptibility, neutron diffraction, and X-ray diffraction measurements. As the orbital-active Fe 2+ ions with larger ionic size are gradually substituted by the orbital-inactive Co 2+ ions with smaller ionic size, the system approaches the itinerant electron limit with decreasing V-V distance. Then, various factors such as the Jahn-Teller distortion and the spin-orbital coupling of the Fe 2+ ions on the A sites and the orbital ordering and electronic itinerancy of the V 3+ ions on the B sites compete with each other to produce a complex magnetic and structural phase diagram. This phase diagram is compared to those of Fe1−xMnxV2O4 and Mn1−xCoxV2O4 to emphasize several distinct features.

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“…At this temperature the structure is converted from a tetragonal phase with a high thermal conductivity to a cubic phase with a lower one. [ 56,71 ] The authors observed a thermal rectification of RR = 14% for a temperature span between 55.4 K (heat sink) and 57.4 K (heat source), which can be considered as a high value considering the small thermal bias below 2 K. [ 56 ] Additionally, Garcia‐Garcia and Alvarez‐Quintana [ 72 ] investigated the thermal rectification in a nitinol/graphite PCM thermal diode. In this case, nitinol was used as the PCM and graphite as the PIM.…”

Section: Thermal Diodesmentioning

confidence: 99%

Solid‐State Thermal Control Devices

Swoboda

Klinar

Yalamarthy

et al. 2020

Adv Elect Materials

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Over the past decade, solid‐state thermal control devices have emerged as potential candidates for enhanced thermal management and storage. They distinguish themselves from traditional passive thermal management devices in that their thermal properties have sharp, nonlinear dependencies on direction and operating temperature, and can lead to more efficient circuits and energy conversion systems than what is possible today. They also distinguish themselves from traditional active thermal management devices (e.g., fans) in that they have no moving parts and are compact and reliable. In this article, the recent progress in the four broad categories of solid‐state thermal control devices that are under active research is reviewed: diodes, switches, regulators, and transistors. For each class of device, the operation principle, material choices, as well as metrics to compare and contrast performance are discussed. New architectures that are explored theoretically, but not experimentally demonstrated, are also discussed.

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Effects of inter-vanadium distance andA-site magnetism inAV2O4(A

Cited by 14 publications

References 20 publications

Pressure induced effects on the chemical and magnetic structure of spinel MnV₂O₄

Pressure induced effects on the chemical and magnetic structure of spinel MnV₂O₄

Evolution of the magnetic and structural properties ofFe1−xCoxV2O4

Solid‐State Thermal Control Devices

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Effects of inter-vanadium distance andA-site magnetism inAV2O4(A

Cited by 14 publications

References 20 publications

Pressure induced effects on the chemical and magnetic structure of spinel MnV2O4

Pressure induced effects on the chemical and magnetic structure of spinel MnV2O4

Evolution of the magnetic and structural properties ofFe1−xCoxV2O4

Solid‐State Thermal Control Devices

Contact Info

Product

Resources

About

Pressure induced effects on the chemical and magnetic structure of spinel MnV₂O₄

Pressure induced effects on the chemical and magnetic structure of spinel MnV₂O₄