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<DIV style="TEXT-ALIGN: center" data-mce-style="text-align: center;"><STRONG><B><SPAN lang=HR style="FONT-SIZE: 16pt; COLOR: black" data-mce-style="font-size: 16pt; color: black;"><IMG><IMG src="cid:fb559ca8379da07816ebeb024a88bd13dae62179@zimbra" data-mce-src="cid:fb559ca8379da07816ebeb024a88bd13dae62179@zimbra"></SPAN></B></STRONG></DIV>
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<P style="TEXT-ALIGN: center; MARGIN: 0px" align=center data-mce-style="text-align: center; margin: 0px;"><B><SPAN lang=EN-GB style="FONT-FAMILY: 'Century Gothic',sans-serif; COLOR: #5f5f5f" data-mce-style="font-family: 'Century Gothic',sans-serif; color: #5f5f5f;">Institut za fiziku, Bijenička cesta 46,</SPAN></B></P>
<P style="TEXT-ALIGN: center; MARGIN: 0px" align=center data-mce-style="text-align: center; margin: 0px;"><B><SPAN lang=EN-GB style="FONT-FAMILY: 'Century Gothic',sans-serif; COLOR: #5f5f5f" data-mce-style="font-family: 'Century Gothic',sans-serif; color: #5f5f5f;">predavaonica u zgradi Mladen Paić</SPAN></B></P><STRONG><B><SPAN lang=EN-GB style="FONT-SIZE: 14pt; FONT-FAMILY: 'Century Gothic',sans-serif; COLOR: #993300" data-mce-style="font-size: 14pt; font-family: 'Century Gothic',sans-serif; color: #993300;">petak, 2. listopada 2015., u 15:00 sati</SPAN></B><BR></STRONG></DIV>
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<DIV style="TEXT-ALIGN: center" data-mce-style="text-align: center;"><SPAN lang=EN-GB style="FONT-SIZE: 16pt; FONT-FAMILY: 'Times New Roman',serif; COLOR: #55913c" data-mce-style="font-size: 16pt; font-family: 'Times New Roman',serif; color: #55913c;"><SPAN lang=EN-GB style="FONT-SIZE: 16pt; FONT-FAMILY: 'Times New Roman',serif; COLOR: #55913c" data-mce-style="font-size: 16pt; font-family: 'Times New Roman',serif; color: #55913c;"><STRONG>Spin-stripe phase in a frustrated spin chain</STRONG></SPAN></SPAN></DIV>
<DIV style="TEXT-ALIGN: center" data-mce-style="text-align: center;"><B><SPAN lang=EN-GB style="FONT-SIZE: 14pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 14pt; font-family: 'Century Gothic',sans-serif;">Dr. Matej Pregelj</SPAN></B></DIV>
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<DIV style="TEXT-ALIGN: center" data-mce-style="text-align: center;"><B><B><B><SPAN lang=EN-GB style="FONT-SIZE: 11pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 11pt; font-family: 'Century Gothic',sans-serif;">Jožef Stefan Institute, Ljubljana, Slovenia</SPAN></B></B></B></DIV>
<DIV style="TEXT-ALIGN: center" data-mce-style="text-align: center;"><SPAN style="FONT-SIZE: small; FONT-FAMILY: Arial" data-mce-style="font-size: small; font-family: Arial;"></SPAN><BR> </DIV>
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<P style="TEXT-ALIGN: left; MARGIN: 0px; LINE-HEIGHT: 115%" data-mce-style="text-align: left; margin: 0px; line-height: 115%;"><SPAN style="FONT-FAMILY: arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;">Motifs of periodic modulations are encountered in a variety of natural systems. In strongly correlated electron systems, such behaviour has typically been associated with competition between short- and long-range interactions, for example, between exchange and dipole–dipole interactions in the case of ferromagnetic thin films. In this talk I will present our recent discovery that spin-stripe textures may develop also in antiferromagnets, where long-range dipole–dipole magnetic interactions are absent. In particular, a comprehensive analysis of magnetic susceptibility, high-field magnetization, specific-heat and neutron diffraction measurements unveils beta-TeVO<SPAN style="FONT-SIZE: x-small" data-mce-style="font-size: x-small;">4</SPAN> as a nearly perfect realization of a frustrated (zigzag) ferromagnetic spin-1/2 chain. A narrow spin-stripe phase has been found at elevated magnetic fields that develop due to weak frustrated short-range interchain exchange interactions, possibly assisted by the symmetry-allowed electric polarization. This concept provides an alternative route for the stripe formation in strongly correlated electron systems.</SPAN><SPAN style="FONT-FAMILY: arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;"></SPAN> </P>
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<DIV style="TEXT-ALIGN: left" data-mce-style="text-align: left;"><B><SPAN lang=EN-GB style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 12pt; font-family: 'Century Gothic',sans-serif;"><B><SPAN lang=EN-GB style="FONT-SIZE: 11pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 11pt; font-family: 'Century Gothic',sans-serif;"> </SPAN></B></SPAN></B></DIV>
<DIV style="TEXT-ALIGN: left" data-mce-style="text-align: left;"><B><SPAN lang=EN-GB style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 12pt; font-family: 'Century Gothic',sans-serif;"><B><SPAN lang=EN-GB style="FONT-SIZE: 11pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 11pt; font-family: 'Century Gothic',sans-serif;"> </SPAN></B></SPAN></B></DIV>
<DIV style="TEXT-ALIGN: right" data-mce-style="text-align: right;"><B><SPAN lang=EN-GB style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 12pt; font-family: 'Century Gothic',sans-serif;"><B><SPAN lang=EN-GB style="FONT-SIZE: 11pt; FONT-FAMILY: 'Century Gothic',sans-serif" data-mce-style="font-size: 11pt; font-family: 'Century Gothic',sans-serif;">Voditelji seminara IF-a: <A href="mailto:natasav@ifs.hr" target=_blank data-mce-href="mailto:natasav@ifs.hr">Nataša Vujičić</A> i <A href="mailto:damirs@ifs.hr" target=_blank data-mce-href="mailto:damirs@ifs.hr">Damir Starešinić</A></SPAN></B></SPAN></B></DIV></DIV></DIV></DIV></DIV>
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