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Magnetically hidden order is a hypernym for electronic ordering phenomena that are visible to macroscopic thermodynamic probes but whose microscopic symmetry cannot be revealed with conventional neutron or x-ray diffraction. In a handful of…

Strongly Correlated Electrons · Physics 2024-08-29 F. Mazza , P. Y. Portnichenko , S. Avdoshenko , P. Steffens , M. Boehm , Eun Sang Choi , M. Nikolo , X. Yan , A. Prokofiev , S. Paschen , D. S. Inosov

In this paper, we present the systematic measurements of the temperature and magnetic field dependences of the thermodynamic and transport properties of the Yb-based heavy fermion YbPtBi for temperatures down to 0.02 K with magnetic fields…

Strongly Correlated Electrons · Physics 2013-02-18 E. D. Mun , S. L. Bud'ko , C. Martin , H. Kim , M. A. Tanatar , J. -H. Park , T. Murphy , G. M. Schmiedeshoff , N. Dilley , R. Prozorov , P. C. Canfield

The methyl groups in hexamethylbenzene C$_6$(CH$_3$)$_6$ become magnetically ordered at the molecular level below 118 K. This is also near the temperature at which the system structurally transitions from triclinic to a unique near-cubic…

Strongly Correlated Electrons · Physics 2018-12-07 Fei Yen

We study the temperature-magnetic field T-B phase diagrams of heavy fermion (HF) metals, and show that at sufficiently high temperatures outside the ordered phase the crossover temperature T*(B), regarded as the energy scale, follows a…

Strongly Correlated Electrons · Physics 2014-05-06 V. R. Shaginyan , A. Z. Msezane , K. G. Popov , G. S. Japaridze , V. A. Khodel

The statement that any phase transition is related to the appearance or disappearance of long-range spatial correlations precludes a finite transition temperature in one-dimensional (1D) systems. In this paper we demonstrate that the 1D…

Statistical Mechanics · Physics 2020-06-02 L. S. Ferreira , L. N. Jorge , Cláudio J. DaSilva , Minos A. Neto , A. A. Caparica

Using low-energy electron diffraction, we show that the room-temperature $(\sqrt{2}\times\sqrt{2})R45^\circ$ reconstruction of Fe$_3$O$_4$(100) reversibly disorders at $\sim$450 $^\circ$C. Short-range order persists above the transition,…

Spin ordering in TbBaCo2O5.5 and its temperature transformation is studied. Polymorphism due to the oxygen ordering with the average content close to 5.5 is investigated. One of ceramic samples (I), in addition to the main phase ap x 2ap x…

The phase transition to ferromagnetic order in itinerant ferromagnetic superconductor UGe$_2$ as function of pressure shows change of phase transition order. At low temperature and high pressure the transition is of first order and at…

Superconductivity · Physics 2013-12-31 Diana V. Shopova

We report on synthesis, crystal structure, magnetic, thermodynamic and transport properties of the new compound YbPd$_2$In, crystallizing as a Heusler structure type. A trivalent state of the rare earth was determined by fitting the…

Strongly Correlated Electrons · Physics 2018-06-28 F. Gastaldo , S. Gabani , A. Džubinská , M. Reiffers , G. Pristáš , I. Čurlík , P. Skyba , M. Clovecko , F. Vavrek , J. G. Sereni , M. Giovannini

Two magnetic transitions are observed in the magneto-superconducting RuEu2-xCexSr2Cu2O10 (Ru-1222), at TM 160 K and TM2~80 K. Below TM2 the Ru moments are weak-ferromagnetically ordered and wide ferromagnetic hysteresis loops are observed,…

Superconductivity · Physics 2009-11-11 I. Felner , E. Galstyan , I. Nowik

We present the results of an investigation of both the magnetic and structural phase transitions in a high quality single crystalline sample of the undoped, iron pnictide compound BaFe$_2$As$_2$. Both phase transitions are characterized via…

Superconductivity · Physics 2015-05-13 Stephen D. Wilson , Z. Yamani , C. R. Rotundu , B. Freelon , E. Bourret-Courchesne , R. J. Birgeneau

We report on the first high-resolution dc-magnetisation ($M$) measurements on a single crystal of \ycs. $M$ was measured down to 0.05 K and in fields up to 12 T, with the magnetic field $H$ parallel to the crystallographic direction [100].…

Strongly Correlated Electrons · Physics 2011-05-24 L. Pedrero , M. Brando , C. Klingner , C. Krellner , C. Geibel , F. Steglich

Dilation and thermopower measurements on YbAgGe, a heavy-fermion antiferromagnet, clarify and refine the magnetic field-temperature (H-T) phase diagram and reveal a field-induced phase with T-linear resistivity. On the low-H side of this…

We report the growth of high-quality single crystals of ThCr$_2$Si$_2$-type tetragonal BaMn$_2$P$_2$ and investigation of its structural, electrical transport, thermal and magnetic properties. Our results of basal plane electrical…

Strongly Correlated Electrons · Physics 2024-02-12 B. S. Jacobs , Abhishek Pandey

Accurately measuring the magnetocaloric effect is necessary to foster the development of magnetic refrigeration devices. However, current methods are inconvenient, requiring different instruments to measure each individual property or a…

We report temperature and field dependent measurements of the magnetic susceptibility, specific heat and resistivity of sintered YbB2 pellets, prepared via two distinct reaction routes, utilizing different temperatures, pressures and…

Strongly Correlated Electrons · Physics 2007-05-23 M. A. Avila , S. L. Bud'ko , C. Petrovic , R. A. Ribeiro , P. C. Canfield , A. V. Tsvyashchenko , L. N. Fomicheva

Elastic neutron scattering on a single crystal and powder X-ray diffraction measurements were carried out to investigate how the crystal structure evolves as a function of temperature in the Weyl semimetal WTe$_{2}$. A sharp transition from…

Materials Science · Physics 2020-09-02 Yu Tao , John A. Schneeloch , Adam A. Aczel , Despina Louca

Most of magnetic transitions related to Ce ordering are found below T_ord~12K. Among the few cases exceeding that temperature, two types of behaviors can be distinguished. One of them is related to the rare cases of Ce binary compounds…

Strongly Correlated Electrons · Physics 2015-06-19 J. G. Sereni , P. Pedrazzini , M. Gómez Berisso , A. Chacoma , S. Encina , T. Gruner , N. Caroca-Canales , C. Geibel

Resistance measurements on single crystals of CaK(Fe$_{1-x}$Mn$_x$)$_4$As$_4$ ($x$ = 0.024) were performed under hydrostatic pressure up to 5.15 GPa. The pressure dependence of the magnetic and superconducting transition temperatures and…

Superconductivity · Physics 2022-10-19 Li Xiang , Mingyu Xu , Sergey L. Bud'ko , Paul C. Canfield

We have measured field and temperature dependent magnetization of YbInNi4 to elucidate the nature of the magnetic transition at 3 K. For small fields we find magnetic order as previously reported. In contrast to former reports, however, our…

Strongly Correlated Electrons · Physics 2011-04-27 T. Willers , N. Hollmann , S. Wirth , H. Kierspel , A. Bianchi , Z. Fisk , A. Severing