Scientific Commons: K. Prokes

CaFe2As2 under uniaxial pressure studied by neutron diffraction: Evidence for superconductivity in a stabilized tetragonal phase (2009)

Prokes, K., Kreyssig, A., Ouladdiaf, B., Pratt, D. K., Ni, N., Bud'ko, S. L., ...

CaFe2As2 single crystals under uniaxial pressure applied along the c axis exhibit the coexistence of several structural phases at low temperatures. We show that the room temperature tetragonal phase...

Magnetic field induced flop of cycloidal spin order in multiferroic TbMnO3: The magnetic structure of the P||a phase (2009)

Aliouane, N., Schmalzl, K., Senff, D., Maljuk, A., Prokes, K., Braden, M., ...

Using in-field single crystal neutron diffraction we have determined the magnetic structure of TbMnO3 in the high field P||a phase. We unambiguously establish that the ferroelectric polarization...

Lattice collapse and quenching of magnetism in CaFe2As2 under pressure: A single crystal neutron and x-ray diffraction investigation (2008)

Goldman, A. I., Kreyssig, A., Prokes, K., Pratt, D. K., Argyriou, D. N., Lynn, J. W., ...

Single crystal neutron and high-energy x-ray diffraction have identified the phase lines corresponding to transitions between the ambient-pressure tetragonal (T), the antiferromagnetic orthorhombic...

Magnetic order of CePdAl under pressureneutron diffraction study (2007)

Prokes, K, Manuel, P, Adroja, DT, Kitazawa, H, Goto, T, Isikawa, Y

Melting of the antiferromagnetic structure in UNiAL near T-N (2007)

Prokes, K., Brück, E.H., Sechovsky, V.

Melting of the antiferromagnetic structure in UNiAL near TN (2006)

Prokes, K., Brück, E.H., Sechovsky, V.

Magnetic order in CePdAl single crystal: effect of magnetic field (2005)

Prokes, K, Manuel, P, Adroja, D T, Kitazawa, H, Goto, T, Isikawa, Y

Neutron diffraction study of history dependence in MnFeP0.6Si0.4 (2005)

Zhang, L., Moze, O., Prokes, K., Tegus, O., Brück, E.H.

Magnetic response function in URhGe (2005)

Prokes, K., Bewley, R., Eccleston, R.S., Brück, E.H., Syshchenko, O., Sechovsky, V.

Magnetic field dependence of the magnetic order in A-type CeCu2Si2 (2005)

Faulhaber, E., Stockert, O., Jeevan, H. S., Prokes, K., Deppe, M., Geibel, C., ...

Field-induced magnetic phases in the normal and superconducting states of ErNi2B2C (2004)

Jensen, A, Toft, KN, Abrahamsen, AB, McMorrow, DF, Eskildsen, MR, Andersen, NH, ...

Magnetic field dependence of the A-phase in CeCu2Si2 (2004)

Faulhaber, E., Stockert, O., Prokes, K., Stüßer, N., Jeevan, H. S., Geibel, C., ...

Electronic properties of an URhGe single crystal (2003)

Prokes, K., Tahara, T., Echizen, Y., Takabatake, T., Fujita, T., ...

Neutron scattering studies on uranium compounds in high magnetic fields (2003)

Brück, E.H., Prokes, K., Nakotte, H., Sechovsky, V.

Neutron scattering studies on uranium compounds in high magnetic fields (2003)

Prokes, K., Nakotte, H., Sechovsky, V., Brück, E.H.

Hard-axis magnetoresistance and metamagnetic transition in UpdSn (2003)

Nakotte, H., Chang, S., Alsmadi, A.M., Jung, M.H., Lacerda, A.H., Prokes, K., ...

Field-induced magnetic structures in UNiGe (2002)

Brück, E.H., Prokes, K., Nakotte, H., Châtel, P.F. De, Sechovsky, V.

Below TN=50 K, UNiGe exhibits incommensurate (INC) antiferromagnetic (AF) order with an additional order-order (AF) phase transition at TM=42.5 K. The ground-state AF structure is characterized by a...

Magnetic-field-induced irreversibility in specific heat of UNiAl (2002)

Syshchenko, O., Prokes, K., Bruck, E.H., Sechovsky, V.

Results of low-temperature specific-heat ðCpÞ measurements of UNiAl single crystal in magnetic fields Bp14T are presented. At temperatures o7K, this antiferromagnet exhibits a first-order...

Magnetic properties and magnetic structure of HoTiGe and ErTiGe (2002)

Prokes, K., Tegus, O., Bruck, E.H., Klaasse, J.C.P., Boer, F.R. De, Buschow, K.H.J.

We have studied the crystal structure, magnetic structure and magnetic properties of the tetragonal compounds HoTiGe and ErTiGe by means of neutron diffraction and magnetic measurements. The...

Canted ferromagnetic structure of UNiGe in high magnetic fields (2002)

Prokes, K., Chatel, P.F. De, Bruck, E.H., Boer, F.R. De, Ayuel, K., Nakotte, H., ...

UNiGe adopts the orthorhombic TiNiSi-type of structure and exhibits in zero field two different antiferromagnetic structures. Both are noncollinear with significant a axis component. Magnetic...

Electronic properties of a URhGe single crystal (2002)

Prokes, K., Tahara, T., Echizen, Y., Takabatake, T., Fujita, T., ...

Structural studies by means of powder X-ray diffraction and single-crystal neutron diffraction show that URhGe crystallizes in the orthorhombic TiNiSi-type of structure. Combined...

Field-induced change of the antiferromagnetic structure of UNiAl (2002)

Prokes, K., Javorsky, P., Gukasov, A., Bruck, E.H., Sechovsky, V.

UNiAl, which orders below TN ¼ 19:3K antiferromagnetically (AF), exhibits pronounced magnetic-historydependent phenomena. This concerns all bulk magnetic properties and also the microscopic magnetic...

High-field magnetization, longitudinal and transverse magnetoresistance of UIrGe (2002)

Chang, S., Nakotte, H., Alsmadi, A.M., Lacerda, A., Jung, M., Mihalik, M., ...

Hybridization and pressure effects in UTX compounds (2002)

Alsmadi, A.M., Sechovsky, V., Lacerda, A., Prokes, K., Kamarad, J., Bruck, E.H., ...

The UTX intermetallic compounds ~T5transition metal and X5p-electron element! were found to crystallize mainly in two large groups, the orthorhombic TiNiSi and the hexagonal ZrNiAl structure. For...

Metamagnetic transition in U2Pd2In (2001)

Prokes, K., Bartashevich, M.I., Goto, T., Nakotte, H., Haanappel, E.G., Syshchenko, A., ...

Electronic properties of UIrGe in high magnetic fields (2001)

Chang, S., Jung, M., Nakotte, H., Bruck, E.H., Klaasse, J.C.P., Mihalik, M., ...

UIrGe crystallizes in the orthorhombic TiNiSi structure and exhibits a large magnetic anisotropy. Here, we present the results of magnetoresistance and specific-heat studies of single-crystalline...

Field dependence of the incommensurate magnetic order in UNiGe (2001)

Nakotte, H., Chang, S., Tun, Z., Prokes, K., Svoboda, P., Sechovsky, V., ...

Between 42 and 50 K, UNiGe exhibits an incommensurate phase (IP) with q (=0, , ) with a that is slightly larger than in zero "eld. We have studied the "eld dependence of this magnetic structure by...

Magnetic properties of TbTiGe (2001)

Prokes, K., Tegus, O., Bruck, E.H., Gortenmulder, T., Boer, F.R. De, Buschow, K.H.J.

We have studied the magnetic properties of the compound TbTiGe by means of neutron diffraction in the temperature range 1.7-310 K. We also report on magnetization measurements made at different...

Collapse of AF magnetic order in UNiAl under pressure (2000)

Syshchenko, O., Fujita, T., Prokes, K., Sechovsky, V., Menovsky, A.A.

Pressure effects on antiferromagnetism in UNiAl (2000)

Mikulina, O., Kamarad, J., Lacerda, A., Syshchenko, O., Fujita, T., Prokes, K., ...

Non-symmetric metamagnetic transition in UNiAl (2000)

Sechovsky, V., Kobayashi, Y., Sato, H., Aoki, H., Prokes, K., Bruck, E.H.

The electrical resistivity (o) and the Hall resistivity (oH) as a function of magnetic "eld was studied on a UNiAl single crystal at 2.9 and 4.2 K. Below 10 K, UNiAl undergoes a metamagnetic...

Possible non-Fermi-liquid behaviour in URh1/3Ni2/3Al (2000)

Prokes, K., Estrela, P., Klaasse, J.C.P., Andreev, A.V., Sechovsky, V., ...

The quasiternary intermetallic compound URh1@3Ni2@3Al crystallizes in the hexagonal ZrNiAl-type of structure, like the parent compounds URhAl (ferromagnet, ¹C"27 K) and UNiAl (antiferromagnet,...

Magnetic properties of ErFe6Ga6 studied by magnetization and neutron diffraction (2000)

Prokes, K., Gramsma, R.T., Janssen, Y., Bruck, E.H., Buschow, K.H.J., Boer, F.R. De

Neutron-diffraction experiments reveal that ErFe6Ga6 forms in the tetragonal ThMn12-type of structure (space group I4/mmm). The Fe sublattice orders ferromagnetically below $T_{\rm C} = 509$ K. The...

Magnetic specific heat of a URhGe single crystal (2000)

Prokes, K., Echizen, Y., Takabatake, T., Fujita, T., Klaasse, J.C.P., ...

URhGe crystallizes in the orthorhombic TiNiSi-type of structure and has been studied untill now only in polycrystalline form. Here, we report on the low-temperature speci"c heat of URhGe measured on...

Neutron scattering study of the field-induced soliton lattice in CuGeO3 (2000)

Ronnow, H. M., Enderle, M., McMorrow, D. F., Regnault, L. P., Dhalenne, G., Revcolevschi, A., ...

CuGeO3 undergoes a transition from a spin-Peierls phase to an incommensurate phase at a critical field of H-c approximate to 12.5 T. In the high-field phase a lattice of solitons forms, with both...

Possible non-Fermi-liquid behaviour in URh1/3Ni2/3Al (2000)

Prokes, K., Hagmusa, I. H., Estrela, Pedro, Klaasse, J. C. P., Andreev, A. V., Sechovsky, V., ...

The quasiternary intermetallic compound URh1/3Ni2/3Al crystallizes in the hexagonal ZrNiAl-type of structure, like the parent compounds URhAl (ferromagnet, TC = 27 K) and UNiAl (antiferromagnet, TN =...

Magnetic phenomena in UNi1-xRhxAl compounds (1999)

Andreev, A.V., Dremov, R.V., Sechovsky, V., Uwatoko, Y., Mushnikov, N.V., Goto, T., ...

Electronic properties of U2Cu9Al (1999)

Prokes, K., Nakotte, H., Boer, F.R. De, Torikachvili, M., Lacerda, A., Beyermann, W.

Pressure dependence of the ferromagnetic to antiferromagnetic transition in Fe3(Ga1-xAlx)4 with x=0.0 and 0.1 (1999)

Duijn, H.G.M., Bruck, E.H., Buschow, K.H.J., Boer, F.R. De, Prokes, K., Sechovsky, V.

The ferromagnetic to antiferromagnetic transition in Fe3Ga4 is studied by means of ac-susceptibility measurements under chemical and external hydrostatic pressure. Substitution of Al for Ga results...

Magnetic structure of U2Pt2Sn (1999)

Prokes, K., Svoboda, P., Kolomiets, A., Sechovsky, V., Nakotte, H., Boer, F.R. De, ...

Electronic properties of a UIrGe single crystal (1999)

Prokes, K., Tahara, T., Fujita, T., Goshima, H., Takabatake, T., Mihalik, M., ...

Magnetic structures of UniAl in magnetic fields (1999)

Prokes, K., Bourdarot, F., Burlet, P., Olsovec, M., Sechovsky, V., Javorsky, P., ...

Magnetic properties of UniAl under pressure (1999)

Prokes, K., Fujita, T., Mushinikov, N.V., Hane, S., Tomita, T., Goto, T., ...

Magnetic properties of UPt single crystals (1999)

Prokes, K., Fujita, T., Bruck, E.H., Boer, F.R. De, Menovsky, A.A.

U2T2X (T = Co, Ni, Rh, Pd, Ir, Pt; X = In, Sn) compounds in high magnetic fields (1998)

Boer, F.R. De, Kindo, K., Nakotte, H., Prokes, K., Sechovsky, V.

Commensurate and incommensurate magnetic order of UPdSi (1998)

Boer, F.R. De, Prokes, K., Sechovsky, V., Robinson, R.A., Sonntag, P., Svoboda, P.

Reduced magnetic moments in UNiSi (1998)

Prokes, K., Brück, E.H., Divis, M., Buschow, K.H.J., Mohn, P., Schwarz, K.

Antiferromagnetic structure of UNiAl (1998)

Prokes, K., Bourdarot, F., Bruck, E.H., Burlet, P., Javorsky, P., Olsovec, M.

Antiferromagnetism and domain effects in UPdSn (1998)

Nakotte, H., Robinson, R.A., Bruck, E.H., Purwanto, A., Zun, Z., Prokes, K.

Magnetic phases and magnetoelastic phenomena in UNiGa under pressure (1998)

Brück, E.H., Prokes, K., Olsovec, M., Bourdarot, F., Burlet, P., Kagayama, T.

Anisotropic exchange interactions in UNiGe (1998)

Châtel, P.F. De, Prokes, K., Nakotte, H., Purwanto, A., Sechovsky, V., Brück, E.H.

Anisotropic exchange interactions in UNiGe. (1998)

Chatel, P.F. De, Prokes, K., Nakotte, H., Purwanto, A., Sechovsky, V., Havela, L., ...

Magnetic phases and magnetoelastic phenomena in UNiGa under pressure (1998)

Honda, F., Prokes, K., Olsovec, M., Bourdarot, F., Burlet, P., Kagayama, T., ...

Magnetism in UPt (1998)

Boer, F.R. De, Prokes, K., Klaasse, J.C.P., Menovsky, A.A., Brück, E.H., ...

Antiferromagnetism and domain effects in UPdSn (1998)

Boer, F.R. De, Nakotte, H., Robinson, R.A., Purwanto, A., Tun, Z., Prokes, K., ...

Magnetic phase diagrams of UNiGe (1998)

Boer, F.R. De, Nakotte, H., Klaasse, J.C.P., Torikachvili, M., Lacerda, A., ...

Reduced magnetic moments in UNiSi (1998)

Boer, F.R. De, Prokes, K., Divis, M., Mohn, P., Schwarz, K., Sechovsky, V., ...

Antiferromagnetic structure of UNiAl (1998)

Menovsky, A.A., Prokes, K., Bourdarot, F., Burlet, P., Javorsky, P., Olsovec, M., ...

Magnetism in uranium intermetallic compounds (1997)

Prokes, K.

Magnetic phase transitions and magnetoelastic phenomena in UNiGa under pressure (1997)

Honda, F., Kagayama, T., Oomi, G., Andreev, A.V., Havela, L., Sechovsky, V., ...

Crystallographic and magnetic structures in UTSi compounds (1997)

Svoboda, P., Buschow, K.H.J., Bruck, E.H., Prokes, K., Boer, F.R. De, Sechovsky, V.

Thermal properties of UPdSn and UCuSn (1997)

Kawanaka, H., Nakotte, H., Prokes, K., Brück, E.H., KimNgan, N.H., Takabatake, T., ...

Specific heat of UNiGe in high magnetic fields (1997)

Hagmusa, I.H., Klaasse, J.C.P., Prokes, K., Brück, E.H., Nakotte, H., Boer, F.R. De

Electronic structure of URhSi (1997)

Prokes, K., Divis, M., Sechovsky, V., Svoboda, P., Richter, M., Buschow, K.H.J., ...

PrRu2Si2: A giant anisotropic induced magnet with a singlet crystal-field ground state (1997)

Mulders, A.M., Yaouanc, A., Reotier, P.D. De, Gubbens, P.C.M., Moolenaar, A.A., Fak, B., ...

Effect of pressure on thermal expansion of UNiGa (1997)

Honda, F., Oomi, G., Andreev, A.V., Havela, L., Prokes, K., Sechovsky, V.

Metamagnetism and electronic structure of UNiGa (1997)

Havela, L., Sechovsky, V., Aoki, Y., Kobayashi, Y., Sato, H., Prokes, K., ...

Specific heat of UNiGe in high magnetic fields (1997)

Havela, L., Sechovsky, V., Aoki, Y., Kobayashi, Y., Sato, H., Prokes, K., ...

5-f band metamagnetism (1997)

Havela, L., Andreev, A.V., Sechovsky, V., Kozlovskaya, I.K., Prokes, K., Javorsky, P., ...

Non-Fermi-liquid scaling in U(Cu,Al)5 compounds (1997)

Nakotte, H., Buschow, K.H.J., Bruck, E.H., Klaasse, J.C.P., Prokes, K., Boer, F.R. De, ...

Magnetic response function in URhAl (1997)

Hiess, A., Havela, L., Prokes, K., Eccleston, R.S., Lander, G.H.

Magnetism in UPdSi (1997)

Prokes, K., Sechovsky, V., Bruck, E.H., Boer, F.R. De, Buschow, K.H.J., Sonntag, R., ...

Thermal properties of UPdSn and UCuSn (1997)

Kanawaka, H., Nakotte, H., Brück, E.H., Prokes, K., Kim-Ngan, N.H., Takabatake, T., ...

Crystallographic and magnetic structures in UTSi compounds (1997)

Prokes, K., Buschow, K.H.J., Brück, E.H., Boer, F.R. De, Svoboda, P., Sechovsky, V.

Neutron scattering study of transverse magnetism (1996)

Binek, Christian, Kato, T., Kleeman, W., Petracic, O., Bertrand, D., Bourdarot, F., ...

In order to clarify the nature of the additional phase transition at H1 (T) < Hc (T) of the layered antiferromagnetic (AF) insulator FeBr2 as found by Aruga Katori et al. (1996) we measured the...

High-field magnetization studies of some U2T2Sn (T = Co, Ir, Pt) compounds (1996)

Prokes, K., Nakotte, H., Boer, F.R. De, Fukushima, T., Matsuyama, S., Kumada, T., ...

Magnetoresistance of UNiGe (1996)

Nakotte, H., Lacerda, A., Bruck, E.H., Havela, L., Sechovsky, V., Prokes, K., ...

Magnetic properties of CeNi0.84Sn2 studied by magnetisation and neutron diffraction (1996)

Schobinger-Papamantellos, P., Nieuwenhuys, G.J., Prokes, K., Buschow, K.H.J.

Low-temperature magnetic structure of UNiGe (1996)

Purwanto, A., Sechovsky, V., Havela, L., Robinson, R.A., Nakotte, H., Larson, A.C., ...

Magnetic ordering in UPtSi (1996)

Prokes, K., Sechovsky, V., Bruck, E.H., Bouree, F., Andre, G., Tran, V.H., ...

Magnetic anisotropy of U2Pd2In (1996)

Prokes, K., Nakotte, H., Havela, L., Sechovsky, V., Pereira, L.C.J., Rijkeboer, C., ...