19 Result(s)

Article

Induced quadrupole effects near a crossover in a tetragonal TbLiF₄ sheelite in a strong magnetic field up to 50 T

The anomalies of magnetic properties of TbLiF₄ caused by the interaction of the energy levels of a rare-earth ion in a strong magnetic field up to 50 T directed along the [100] and [110] axes are studied experime...

Z. A. Kazei, V. V. Snegirev, J. -M. Broto… in Journal of Experimental and Theoretical Ph… (2012)

Article

Anomalous magnetocaloric effect in van vleck paramagnet HoVO₄ near energy level crossing

The anomalous magnetocaloric effect in singlet rare-earth paramagnets near energy level crossing has been experimentally observed for the first time. The magnetization and differential magnetic susceptibility ...

Z. A. Kazei, V. V. Snegirev, J. -M. Broto, H. Rakoto in JETP Letters (2008)

Chapter and Conference Paper

High Field Level Crossing Studies on Spin Dimers in the Low Dimensional Quantum Spin System Na₂T₂(C₂O₂)₃(H₂O)₂ with T = Ni, Co, Fe, Mn

In this paper we demonstrate the application of high magnetic fields to study the magnetic properties of low dimensional spin systems. We present a case study on the series of 2-leg spin-ladder compounds Na₂T₂(C₂

C. Mennerich, H. -H. Klauss, A. U. B. Wolter, S. Süllow… in Quantum Magnetism (2008)

Article

Magnetic anomalies associated with the Tb³⁺ level crossing in YBa₂Cu₃O _x (x ≈ 6.0) in strong magnetic fields up to 50 T

Jumps of the magnetic moment of a Tb:YBa₂Cu₃O _x crystal (x ≈ 6.0) are observed in pulsed magnetic fields of up to 50 T for the field orientations along the [100] and [110] axes....

Z. A. Kazeĭ, V. V. Snegirev, J. -M. Broto, H. Rakoto, L. P. Kozeeva in JETP Letters (2006)

Article

Anal canal duplication: a retrospective analysis of 12 cases from two European pediatric surgical departments

Anal canal duplication (ACD) represents an extremely rare intestinal congenital anomaly of unknown origin. Usually evidenced within 2 years of age, nearly 45% of reported cases present associated malformations...

Gabriele Lisi, M. T. Illiceto, C. Rossi, J. M. Broto… in Pediatric Surgery International (2006)

Article

Jahn-Teller magnet TbVO₄ in a strong magnetic field up to 50 T

Magnetic properties of the Jahn-Teller crystal TbVO₄ are studied in pulse magnetic fields up to 50 T. The destruction of quadrupole ordering accompanied by an increase in crystal symmetry from orthorhombic to tet...

Z. A. Kazei, V. V. Snegirev, J. -M. Broto… in Journal of Experimental and Theoretical Ph… (2005)

Article

Effect of a strong magnetic field on the quadrupole and magnetic orders and crossover in the Jahn-Teller magnet DyVO₄

The effect of a strong magnetic field H||[001] on magnetic properties of the Jahn-Teller compound DyVO₄ is studied. New phase transitions discovered and investigated experimentally and theoretically include the b...

A. A. Demidov, Z. A. Kazei, N. P. Kolmakova… in Journal of Experimental and Theoretical Ph… (2004)

Article

A magnetic study of the one dimensional Sr \(\mathsf{_{3}}\) NiIrO \(\mathsf{_{6}}\) compound

The magnetic properties of a polycrystalline Sr₃NiIrO₆ sample have been investigated by means of susceptibility and magnetization measurements. On the one hand, it is found that this compound, made of magnetic ch...

D. Flahaut, S. Hébert, A. Maignan, V. Hardy… in The European Physical Journal B - Condense… (2003)

Article

Low Temperature Physics at the Laboratoire National des Champs Magnétiques Pulsés in Toulouse

An overview over past and present activities and future developments at the Toulouse pulsed magnetic field facility is given, both as far as technical developments of the infrastructure, as well as low tempera...

D. Vignolles, D. Smirnov, G. Rikken, B. Raquet… in Journal of Low Temperature Physics (2003)

Article

Anomalous Hall Effect in Sn_1−x−y Mn _x Eu _y Te and Sn_1−x−y Mn _x Er _y Te Mixed Crystals

The Anomalous Hall Effect (AHE) was investigated in IV–VI ferromagnetic semimagnetic semiconductors of Sn_1−x Mn _x Te codoped with either Eu or Er. The analysis of experimental da...

K. Racka, I. Kuryliszyn, M. Arciszewska, W. Dobrowolski… in Journal of Superconductivity (2003)

Article

Low Temperature Annealing Studies of Ga_1−x Mn _x As

High and low field magnetotransport measurements, as well as SQUID measurements of magnetization, were carried out on Ga_1−x Mn _x As epilayers grown by low temperature molecular b...

I. Kuryliszyn, T. Wojtowicz, X. Liu, J. K. Furdyna… in Journal of Superconductivity (2003)

Article

Anomalously high charge/orbital ordering temperature in Bi_0.5Sr_0.5MnO₃

Neutron/synchrotron diffraction data and magnetic measurements provide direct evidence of charge/orbital ordering at anomalously high temperatures in Bi_0.5Sr_0.5MnO₃, as well as in other (Bi,Sr)MnO₃ manganites. We...

C. Frontera, J.L. García-Muñoz, M.A.G. Aranda, C. Ritter, A. Llobet… in Applied Physics A (2002)

Article

Charge modulation and orientational variants in Bi_1/3Ca_2/3MnO₃

We present a neutron/synchrotron diffraction study of the orbital/charge ordering in Bi_1/3Ca_2/3MnO₃. The compound presents a high degree of orthorhombicity, which has permitted us to identify different modulation...

A. Llobet, C. Frontera, C. Ritter, M. Respaud, J.M. Broto… in Applied Physics A (2002)

Article

Magnetization measurements of clusters of Mn (II) at low temperature and high magnetic field

The compound under study is a magnetic metal oxyde cluster of Mn(II) encapsulated in between two polyoxymetalate clusters PW₉O₃₄, i.e. (Mn₄(H₂O)₂(PW₉O₃₄)₂)K₁₀20H₂O. We measured the magnetization up to 36 T in a l...

J. M. Broto, M. Respaud, R. Barbaste, H. Rakoto… in Czechoslovak Journal of Physics (1996)

Article

Measurements ofH _c2(T) in Bi-Sr-Cu-O

H _c2(T) has been measured for thin BSCO films at temperatures down to 65 mK and pulsed fields up to 35 T.H _c2(T) diverged anomalously as the temperature decreased. At the lowest temperature, it was five times ...

M. S. Osofsky, R. J. Soulen Jr., S. A. Wolf, J. M. Broto… in Journal of Superconductivity (1994)

Chapter

Magnetic Properties of Hexagonal Fe/Ru Superlattices with Short Periodicity

The recent introduction of molecular beam epitaxy techniques in metal physics has introduced the ability to prepare new crystalline structures of elemental metals by epitaxy (pseudomorphic structures).

M. Piecuch, M. Maurer, M. F. Ravet… in Science and Technology of Nanostructured M… (1991)

Article

FeAlO₃: new production methods and study of its magnetization in very high intensity pulsed magnetic fields

X. Devaux, A. Rousset, J. M. Broto, H. Rakoto… in Journal of Materials Science Letters (1990)

Article

Giant Magnetoresistance of (001) Fe / (001) Cr Superlattices

We recently reported the observation of a very large magnetoresistance in (001)Fe/(001)Cr superlattices grown by MBE. The magnetoresistance is found to be very large for thin Cr layers. We ascribe this magneto...

A. Barthelemy, M. N. Baibich, J. M. Broto, R. Cabanel… in MRS Online Proceedings Library (1989)

Chapter

Localization Effects in Multilayers of Metallic Glasses

The localization effects of disordered metals are due to quantum interferences between conduction electron waves scattered by a random potential. The coherence length of the electron waves is fixed by the inel...

J. M. Broto in Physics, Fabrication, and Applications of Multilayered Structures (1988)