( ( ( The ( physical property ) ) ( that ( governs ( ( the interplay ) ( of ( ( the demagnetization ) ( with ( applied field ) ) ) ) ) ) ) ) ( ( is ( ( the energetics ) ( of ( ( the ( magnetic domain-walls ) ) ( in ( the ( two layers ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ physical) (NN property)) (SBAR (WHNP (WDT that)) (S (VP (VBZ governs) (NP (NP (DT the) (NN interplay)) (PP (IN of) (NP (NP (DT the) (NN demagnetization)) (PP (IN with) (NP (JJ applied) (NN field)))))))))) (VP (VBZ is) (NP (NP (DT the) (NNS energetics)) (PP (IN of) (NP (NP (DT the) (JJ magnetic) (NNS domain-walls)) (PP (IN in) (NP (DT the) (CD two) (NNS layers))))))) (. .)))
The physical property that governs the interplay of the demagnetization with applied field is the energetics of the magnetic domain-walls in the two layers.
(ROOT (S (NP (NNP Demagnetization)) (VP (VBZ is) (NP (NP (DT the) (NN process)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (DT a) (NN magnet)) (VP (VBZ loses) (NP (PRP$ its) (JJ magnetic) (NNS properties))))))) (. .)))