@misc{altynbaev_hidden_quantum_2016, 
author={Altynbaev, E., Siegfried, S.-A., Moskvin, E., Menzel, D., Dewhurst, C., Heinemann, A., Feoktystov, A., Fomicheva, L., Tsvyashchenko, A., Grigoriev, S.},
title={Hidden quantum phase transition in Mn1−xFexGe evidenced by small-angle neutron scattering},
year={2016},
howpublished = {journal article},
doi = {https://doi.org/10.1103/PhysRevB.94.174403},
abstract = {The magnetic system of the Mn1−xFexGe solid solution is ordered in a spiral spin structure in the whole concentration range of x∈[0÷1]. The close inspection of the small-angle neutron-scattering data reveals the quantum phase transition from the long-range ordered to short-range ordered helical structure upon increase of Fe concentration at x∈[0.25÷0.4]. The short-range order (SRO) of the helical structure is identified as a Lorentzian contribution, while long-range order is associated with the Gaussian contribution into the scattering profile function. The scenario of the quantum phase transition with x as a driving parameter is similar to the thermal phase transition in pure MnGe. The quantum nature of the SRO is proved by the temperature-independent correlation length of the helical structure at low- and intermediate-temperature ranges with remarkable decrease above certain temperature TQ. We suggest the x-dependent modification of the effective Ruderman-Kittel-Kasuya-Yosida exchange interaction within the Heisenberg model of magnetism to explain the quantum critical regime in Mn1−xFexGe.},
note = {Online available at: \url{https://doi.org/10.1103/PhysRevB.94.174403} (DOI). Altynbaev, E.; Siegfried, S.; Moskvin, E.; Menzel, D.; Dewhurst, C.; Heinemann, A.; Feoktystov, A.; Fomicheva, L.; Tsvyashchenko, A.; Grigoriev, S.: Hidden quantum phase transition in Mn1−xFexGe evidenced by small-angle neutron scattering. Physical Review  B. 2016. vol. 94, no. 17, 174403. DOI: 10.1103/PhysRevB.94.174403}}