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Effect of doping concentration and sintering temperature on structure and photoluminescence properties of blue/red emitting bi-phase Eu3+/Eu2+-doped Sr5(PO4)3Cl/Sr3(PO4)2phosphors

Authors: P H Vuong; N T K Lien; P T Huy; Advisor: -; Co-Author: L T Ha; N Tu; N V Quang; C X Thang; D X Viet; N D Hung; N D T Kien; Thanh-Tung Duong (-)

“Facile synthesis of single phase α-Zn2SiO4:Mn2+ phosphor via high-energy planetary ball milling and post-annealing method”, Journal of Luminescence, 7 (2019) 116612.

Authors: Nguyen Tu; Pham Thanh Huy; Advisor: -; Co-Author: L.T.T. Vien; T. T. Phuong; N.T. Tuan; N.V. Quang; Hao Van Bui; Anh-Tuan Duong; Do Quang Trung (-)

Strain-modulated helimagnetism and emergent magnetic phase diagrams in highly crystalline MnP nanorod films

Authors: Richa Pokharel Madhogaria; Chang-Ming Hung; Baleeswaraiah Muchharla; Anh Tuan Duong; Raja Das; Pham Thanh Huy; Sunglae Cho; Sarath Witanachchi; Hariharan Srikanth; Manh-Huong Phan; Advisor: -; Co-Author: - (2021)

We explore strain-modulated helimagnetism in highly crystalline MnP nanorod films grown on Si(100) substrates using molecular beam epitaxy. The strained MnP film exhibits a paramagnetic to ferromagnetic (FM) phase transition at T C ∼ 279 K , and the FM to helical phase transition at T N ∼ 110 K . The value of T N is greater than T N ∼ 47 K for the MnP single crystal, indicating strong strain-modulated helimagnetic states in the MnP nanorod film. The presence of significant thermal hysteresis in the helical phase indicates the coexistence of competing magnetic interactions, leading to the first-order metamagnetic transition. Similar to its single-crystal coun...