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The critical properties of the single-crystalline semiconducting ferromagnet CrGeTe$_3$ were investigated by bulk dc magnetization around the paramagnetic to ferromagnetic phase transition. Critical exponents $\beta = 0.200\pm0.003$ with…

材料科学 · 物理学 2017-08-16 Yu Liu , C. Petrovic

Results of a study of dc-magnetization M(T, H), performed on a Nd0.6Pb0.4MnO3 single crystal in the temperature range around T_C (Curie temperature) which embraces the critical region | epsilon | = |T -T_C |/T_C <= 0.05 are reported. The…

强关联电子 · 物理学 2009-11-10 M. Sahana , U. K. Roessler , Nilotpal Ghosh , Suja Elizabeth , H. L. Bhat , K. Doerr , D. Eckert , M. Wolf , K. -H. Mueller

The critical properties and magnetocaloric effect of semiconducting ferrimagnet Mn$_3$Si$_2$Te$_6$ single crystals have been investigated by bulk magnetization and heat capacity around $T_c$. Critical exponents $\beta = 0.41\pm0.01$ with a…

强关联电子 · 物理学 2018-08-30 Yu Liu , C. Petrovic

The critical properties of flux-grown single-crystalline quasi-two-dimensional weak itinerant ferromagnet Cr$_{0.62}$Te were investigated by bulk dc magnetization around the paramagnetic (PM) to ferromagnetic (FM) phase transition. Critical…

强关联电子 · 物理学 2018-03-14 Yu Liu , C. Petrovic

The van der Waals ferromagnet Fe5GeTe2 has a Curie temperature TC of about 270 K, which can be raised above room temperature by tuning the Fe deficiency content. To achieve insights into its ferromagnetic exchange, we have studied the…

强关联电子 · 物理学 2021-02-17 Zhengxian Li , Wei Xia , Hao Su , Zhenhai Yu , Yunpeng Fu , Leiming Chen , Xia Wang , Na Yu , Zhiqiang Zou , Yanfeng Guo

The critical properties of the single-crystalline van der Waals bonded ferromagnet Fe$_{3-x}$GeTe$_2$ were investigated by bulk dc magnetization around the paramagnetic (PM) to ferromagnetic (FM) phase transition. The Fe$_{3-x}$GeTe$_2$…

强关联电子 · 物理学 2018-03-19 Yu Liu , V. N. Ivanovski , C. Petrovic

We report the thermal expansion, critical behavior, magnetocaloric effect (MCE), and magnetoresistance ($MR$) on the polycrystalline Mn$_{1.4}$Fe$_{3.6}$Si$_{3}$ compound around the ferromagnetic transition. A large negative volume thermal…

强关联电子 · 物理学 2021-08-11 Vikram Singh , R. Nath

We investigate the magnetocrystalline anisotropy, critical behavior, and magnetocaloric effect in ferromagnetic-layered Cr$_2$Te$_3$. We have studied the critical behavior around the Curie temperature ($T_C$) using various techniques,…

材料科学 · 物理学 2024-07-26 Shubham Purwar , Tushar Kanti Bhowmik , Soumya Ghorai , Setti Thirupathaiah

CrI$_3$ is a promising candidate for the van der Waals bonded ferromagnetic devices since its ferromagnetism can be maintained upon exfoliating of bulk crystals down to single layer. In this work we studied critical properties of bulk…

强关联电子 · 物理学 2018-03-06 Yu Liu , C. Petrovic

Inelastic neutron scattering technique is employed to investigate the paramagnetic spin dynamics in a single crystalline sample of the magnetocaloric compound MnFe$_4$Si$_3$. In the investigated temperature range, 1.033$\times T_{C}$ to…

材料科学 · 物理学 2025-02-21 N. Biniskos , K. Schmalzl , J. Persson , S. Raymond

Layered van der Waals ferromagnets are promising candidates for designing new spintronic devices. Here we investigated the critical properties and magnetocaloric effect connected with ferromagnetic transition in layered van der Waals VI$_3$…

材料科学 · 物理学 2020-01-15 Yu Liu , Milinda Abeykoon , C. Petrovic

We report a dc magnetization study of the critical phenomenon around the ferromagnetic transition temperature T_C in high-quality single crystals of uranium ferromagnetic superconductors UGe2 and URhGe. The critical exponents, beta for the…

超导电性 · 物理学 2014-03-26 Naoyuki Tateiwa , Yoshinori Haga , Tatsuma D. Matsuda , Etsuji Yamamoto , Zachary Fisk

To understand the nature of magnetic phase transition in nano-crystalline Pr$_2$CoMnO$_6$, in present study we have investigated the critical behavior and magnetocaloric effect. To estimate the critical exponents, various methods have been…

强关联电子 · 物理学 2019-02-26 Ilyas Noor Bhatti , Imtiaz Noor Bhatti , Rabindra Nath Mahato , M. A. H. Ahsan

The weak itinerant ferromagnet UIr is studied by magnetization and magnetostriction measurements. Critical behavior, which surprisingly extends up to several Tesla, is observed at the Curie temperature $T_C\simeq45$ K and is analyzed using…

强关联电子 · 物理学 2010-03-16 W. Knafo , C. Meingast , S. Sakarya , N. H. van Dijk , Y. Huang , H. Rakoto , J. -M. Broto , H. v. Löhneysen

CrI3, which belongs to a rare category of two-dimensional (2D) ferromagnetic semiconductors, is of great interest for spintronic device applications. Unlike CrCl3 whose magnetism presents a 2D-Heisenberg behavior, CrI3 exhibits a larger van…

材料科学 · 物理学 2018-03-14 G. T. Lin , X. Luo , F. C. Chen , J. Yan , J. J. Gao , Y. Sun , W. Tong , P. Tong , W. J. Lu , Z. G. Sheng , W. H. Song , X. B. Zhu , Y. P. Sun

The ternary intermetallic compound Gd$_2$Cu$_2$In crystallizes in Mo$_2$Fe$_2$B type structure with the space group $P4/mbm$ and we study critical behaviour and magnetocaloric effect near the ferromagnetic transition ($T_C$ $\approx$ 94 K)…

The critical regime of the charge exchange (CE) manganite spin glass Eu_{0.5}Ba_{0.5}MnO_{3} is investigated using linear and non linear magnetic susceptibility and the divergence of the third ordered susceptibility (chi{_3}) signifying the…

强关联电子 · 物理学 2008-03-05 Sunil Nair , A. K. Nigam

We have investigated the critical behavior of a shandite-type half-metal ferromagnet Co3Sn2S2. It exhibits a second-order paramagnetic-ferromagnetic phase transition with TC = 174 K. To investigate the nature of the magnetic phase…

强关联电子 · 物理学 2018-08-21 Weinian Yan , Xiao Zhang , Qi Shi , Xiaoyun Yu , Zhiqing Zhang , Qi Wang , Si Li , Hechang Lei

The critical properties at the ferromagnetic - paramagnetic transition have been analysed from data of static magnetization measurements on single crystals of Pr1-xPbxMnO3, for x = 0.23 and x = 0.30. In Pr1-xPbxMnO3 the ferromagnetic…

强关联电子 · 物理学 2015-06-25 B. Padmanabhan , H. L. Bhat , Suja Elizabeth , Sahana Roessler , U. K. Roessler , K. Doerr , K. H. Mueller

The critical behavior of dc magnetization in the uranium ferromagnet URhAl with the hexagonal ZrNiAl-type crystal structure has been studied around the ferromagnetic transition temperature T_C. The critical exponent beta for the temperature…

强关联电子 · 物理学 2018-04-04 Naoyuki Tateiwa , Jiri Pospisil , Yoshinori Haga , Etsuji Yamamoto
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