منابع مشابه
Magnetic-field-induced localization transition in HgCdTe.
We have performed magnetoresistance and Hall-resistance measurements on low —carrierconcentration n-type samples of Hg076Cdp24Te at millikelvin temperatures. We observe an abrupt rise in the Hall resistance and magnetoresistance at a characteristic field H, which is a significant function of temperature and which allows us to reject magnetic freezeout or localization by disorder as possible mec...
متن کاملPhase transition induced by a magnetic field
The magnetic catalysis of discrete chiral symmetry breaking in the 2+1 dimensional Nambu-Jona-Lasinio model is analyzed. A particular attention is paid to a possible application of the effect in solid state physics. The fermion contribution to the thermal conductivity as a function of the dynamical mass (energy gap in the spectrum) is estimated and is shown to be suppressed when a non-zero orde...
متن کاملField-induced magnetic transition in the heavy-fermion antiferromagnet Ce7Ni3
We present a detailed study of the field ~B! temperature ~T! phase diagram of the heavy-fermion antiferromagnet Ce7Ni3 that crystallizes in the hexagonal Th7Fe3-type structure with three nonequivalent Ce sites (Ce I , Ce II , and Ce III). This compound undergoes two magnetic transitions at TN151.9 K and TN250.7 K in zero field. Below TN1, an incommensurate spin density wave ~SDW! develops, and ...
متن کاملMagnetic field induced confinement-deconfinement transition in graphene quantum dots.
Massless Dirac particles cannot be confined by an electrostatic potential. This is a problem for making graphene quantum dots but confinement can be achieved with a magnetic field and here general conditions for confined and deconfined states are derived. There is a class of potentials for which the character of the state can be controlled at will. Then a confinement-deconfinement transition oc...
متن کاملMagnetic-field induced isotropic to nematic liquid crystal phase transition.
We report on measurements of magnetic-field induced nematic order in the bent-core liquid crystal 4-chlororesorcinol bis[4-(4-n-dodecyloxybenzoyloxy) benzoate]. Using the 31 T solenoid at the National High Magnetic Field Laboratory, we have observed, at temperatures less than 1 degrees above the clearing point, a first-order transition to the nematic phase. The critical magnetic field at which ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2007
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.75.035128