title: A Protocol to Fabricate Nanostructured New Phase: B31-Type MnS Synthesized under High Pressure.
abstract: Synthesis of nanomaterials with target crystal structures, especially those new structures that cannot be crystallized in their bulk counterparts, is of considerable interest owing to their strongly structure-dependent properties. Here, we have successfully synthesized and identified new-phase nanocrystals (NCs) associated with orthorhombic MnP-type (B31) MnS by utilizing an effective high-pressure technique. It is particularly worth noting that the generated new structured MnS NCs were captured as expected by quenching the high-pressure phase to the ambient conditions at room temperature. Likewise, the commercially available bulk rocksalt (RS) MnS material underwent unambiguously a reversible phase transition when the pressure was released completely. First-principles calculations further supported that the B31-MnS was more energetically preferable than the RS one under high pressure, which can be plausibly interpreted by the structural buckling with respect to zigzagged arrangements within B31 unit cell. Our findings represent a significant step forward in a deeper understanding of the high-pressure phase diagram of MnS and even provide a promising strategy to prepare desired nanomaterials with new structures that do not exist in their bulk counterparts, thus greatly increasing the choice of materials for a variety of applications.
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Guanjun
authors.initials: G
authors.lastname: Xiao
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Xinyi
authors.initials: X
authors.lastname: Yang
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Xinxin
authors.initials: X
authors.lastname: Zhang
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Wang
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Huang
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Zhanhui
authors.initials: Z
authors.lastname: Ding
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Yanming
authors.initials: Y
authors.lastname: Ma
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Guangtian
authors.initials: G
authors.lastname: Zou
authors.affiliation: †State Key Laboratory of Superhard Materials and ‡College of Physics, Jilin University, Changchun 130012, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Zou