Disequilibrium · disequilibrium:magnetic-field-change

Changing magnetic flux

A magnetic flux that changes through a circuit, from motion or from a time-varying field. Only the change drives anything.

symbol dΦ/dtElectromagnetismenergy form magneticexergy positivealso: magnetic flux change, time-varying field, relative motion of magnet and coil

Atlas record: 5 claims reference this disequilibrium — 5 established.

Explorerelations · matrix context · routes · sources · cite

conditions: transient only

5claims8enumerated routes3routes with complete-composition evidence3candidate routes not searched10cited sources

Relations

drives · 5

Changing magnetic flux—drives→Electromagnetic inductionestablished

any time-varying flux through a loop, from motion or from an AC source

Changing magnetic flux—drives→Joule magnetostrictionestablished

Changing magnetic flux—drives→Magnetoelectric couplingestablished

a magnetostrictive–piezoelectric laminate; the AC field strains the first layer, which stresses the second

Changing magnetic flux—drives→Spin pumpingestablished

magnetisation driven into precession (ferromagnetic resonance) next to a normal metal

Changing magnetic flux—drives→Magnetocaloric effectestablished

adiabatic magnetisation or demagnetisation of a material near its ordering temperature

Matrix context

D = disequilibrium row · C = coupling family column. A cell reads the state of the atlas for that pair.

C.01 Thermoelectric C.02 Thermionic C.03 Thermoacoustic C.04 Pyroelectric C.05 Thermogalvanic C.06 Thermomagnetic C.07 Thermophotovoltaic C.08 Heat engine (thermomechanical)C.09 Caloric (magneto/electro/elasto)C.10 Piezoelectric C.11 Flexoelectric C.12 Triboelectric C.13 Electrostatic (variable capacitance)C.14 Electromagnetic induction C.15 Magnetostrictive C.16 Magnetoelectric C.17 Spin caloritronic C.18 Photovoltaic C.19 Photoelectrochemical C.20 Photothermal C.21 Electrochemical C.22 Osmotic / salinity-gradient C.23 Electrokinetic C.24 Turbomachinery C.25 Magnetohydrodynamic C.26 Radiovoltaic C.27 Nuclear heat C.28 Rectenna C.29 Thermochemical C.30 Biological C.31 Fluctuation / information-driven C.32 Photon momentum C.33 Thermodiffusive C.34 Marangoni C.35 Acoustoelectric C.36 Photodiffusive C.37 Thermo-osmotic C.38 Electrohydrodynamic C.39 Radioluminescent C.40 Thermopolarization

Enumerated routes through this · 8

Magnetocaloric refrigeration1/2 est · demonstrated
Magnetoelectric stray-field harvester3/3 est · demonstrated
Spin pumping with inverse spin Hall detection5/5 est · demonstrated
Changing magnetic flux → Electromagnetic induction → Charge carriers → Electrical work3/3 est · candidate
Changing magnetic flux → Joule magnetostriction → Direct piezoelectric effect → Separated surface charge → Electrical work4/4 est · candidate
Changing magnetic flux → Joule magnetostriction → Elastic stress → Direct piezoelectric effect → Separated surface charge → Electrical work5/5 est · candidate
Changing magnetic flux → Magnetocaloric effect → Temporal temperature change → Pyroelectric effect → Separated surface charge → Electrical work5/5 est · extends a recorded pathway
Changing magnetic flux → Joule magnetostriction → Elastic stress → Villari effect → Changing magnetic flux → Electromagnetic induction → Charge carriers → Electrical work7/7 est · extends a recorded pathway

Cited sources · 10

[1]
M. Faraday. Experimental researches in electricity (1832)
Philosophical Transactions of the Royal Society 122, 125–162 · doi:10.1098/rstl.1832.0006 · crossref ✓ 2026-09-19 · record
[2]
L. D. Landau, E. M. Lifshitz, L. P. Pitaevskii. Electrodynamics of Continuous Media (Course of Theoretical Physics, Vol. 8, 2nd ed.) (1984)
Pergamon · book, no DOI · record
[3]
J. P. Joule. On the effects of magnetism upon the dimensions of iron and steel bars (1847)
Philosophical Magazine 30, 76–87 · doi:10.1080/14786444708645656 · crossref ✓ 2026-09-19 · record
[4]
C.-W. Nan et al.. Multiferroic magnetoelectric composites: Historical perspective, status, and future directions (2008)
Journal of Applied Physics 103, 031101 · doi:10.1063/1.2836410 · crossref ✓ 2026-09-19 · record
[5]
Y. Tserkovnyak, A. Brataas, G. E. W. Bauer. Enhanced Gilbert damping in thin ferromagnetic films (2002)
Physical Review Letters 88, 117601 · doi:10.1103/PhysRevLett.88.117601 · crossref ✓ 2026-09-19 · record
[6]
Y. Tserkovnyak et al.. Nonlocal magnetization dynamics in ferromagnetic heterostructures (2005)
Reviews of Modern Physics 77, 1375 · doi:10.1103/RevModPhys.77.1375 · crossref ✓ 2026-09-19 · record
[7]
O. Mosendz et al.. Quantifying spin Hall angles from spin pumping: Experiments and theory (2010)
Physical Review Letters 104, 046601 · doi:10.1103/PhysRevLett.104.046601 · crossref ✓ 2026-09-19 · record
[8]
V. K. Pecharsky, K. A. Gschneidner Jr.. Giant magnetocaloric effect in Gd5(Si2Ge2) (1997)
Physical Review Letters 78, 4494 · doi:10.1103/PhysRevLett.78.4494 · crossref ✓ 2026-09-19 · record
[9]
K. A. Gschneidner Jr, V. K. Pecharsky, A. O. Tsokol. Recent developments in magnetocaloric materials (2005)
Reports on Progress in Physics 68, 1479–1539 · doi:10.1088/0034-4885/68/6/R04 · crossref ✓ 2026-09-19 · record
[10]
X. Moya, S. Kar-Narayan, N. D. Mathur. Caloric materials near ferroic phase transitions (2014)
Nature Materials 13, 439–450 · doi:10.1038/nmat3951 · crossref ✓ 2026-09-19 · record

Cite this entity

Physical Transformation Atlas (2026). entity disequilibrium:magnetic-field-change: Changing magnetic flux. Dataset revision rbfbfcbb70e57 (hash of the canonical data). https://physical-transformation-atlas.wldud5192.workers.dev/e/disequilibrium/magnetic-field-change

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