@article{32cbfe3feb994eb4b19608dfe508b715,
title = "Spin dynamics in pressure-induced magnetically ordered phases in (C4 H12 N2)Cu2Cl6",
abstract = "We present inelastic neutron-scattering experiments on the S=1/2 frustrated gapped quantum magnet piperazinium hexachlorodicuprate (PHCC) under applied hydrostatic pressure. These results show that at 9 kbar the magnetic triplet excitations in the system are gapless, contrary to what was previously reported. Our results are in agreement with recent muon-spin relaxation experiments which found magnetic order above a quantum-critical point at 4.3 kbar. We show that the changes in the excitation spectrum can be primarily attributed to the change in a single exchange pathway.",
author = "G. Perren and M{\"o}ller, {J. S.} and D. H{\"u}vonen and Podlesnyak, {A. A.} and A. Zheludev",
note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society. {\textcopyright}2015 American Physical Society.",
year = "2015",
month = aug,
day = "7",
doi = "10.1103/PhysRevB.92.054413",
language = "English",
volume = "92",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "5",
}